CRUISE CONTROL (DIAGNOSTICS)
CC(diag)

CRUISE CONTROL (DIAGNOSTICS) > Basic Diagnostic Procedure
PROCEDURE

Before performing diagnosis, refer to “CAUTION” in “General Description”. CRUISE CONTROL (DIAGNOSTICS)>General Description>CAUTION

1. PERFORM CUSTOMER INTERVIEW.

Ask the customer when and how the trouble occurred using the interview check list. CRUISE CONTROL (DIAGNOSTICS)>Check List for Interview

Did you interview the customer?

2

Perform the interview, and 2

2. CHECK MALFUNCTION INDICATOR LIGHT.

Make sure the malfunction indicator light illuminates.

Does the malfunction indicator light illuminate?

6

3

3. CHECK CRUISE INDICATOR LIGHT.

Make sure the cruise indicator light blinks.

Does the cruise indicator light blink?

8

4

4. CHECK CRUISE SWITCH OPERATION.

Check the CRUISE switch operation. (Check the illumination of the CRUISE indicator.)

Is the CRUISE switch turned to ON? (Does the CRUISE indicator illuminate?)

5

Go to phenomenon 1. CRUISE CONTROL (DIAGNOSTICS)>Diagnostics with Phenomenon>DIAGNOSTIC PROCEDURE WITH PHENOMENON

5. CHECK CRUISE CONTROL SET OPERATION.

Check the cruise control setting operation.

Can the cruise control be set while driving at 40 km/h (25 MPH) or more?

9

8

6. CHECK DTC.

Using the Subaru Select Monitor, read all DTCs. LAN SYSTEM (DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC related to engine or ABS/VDC displayed? (Current malfunction)

Record the DTC. 7

Go to phenomenon 2. CRUISE CONTROL (DIAGNOSTICS)>Diagnostics with Phenomenon>DIAGNOSTIC PROCEDURE WITH PHENOMENON

7. CHECK FREEZE FRAME DATA.

Using the Subaru Select Monitor, check the Freeze Frame Data or Information in Trouble State.

Was the Freeze Frame Data or Information in Trouble State recorded?

Record the data. Perform the inspection according to the engine or ABS/VDC related DTC.

Perform the inspection according to the engine or ABS/VDC related DTC.

8. CHECK CANCEL CODE.

Read the cancel codes using the Subaru Select Monitor. CRUISE CONTROL (DIAGNOSTICS)>Cancel Code

If the following is performed, the cancel code will be cleared.

- Do not turn the ignition switch to OFF after the cruise control is deactivated.

- Do not operate the cruise control command switch after the cruise control is deactivated.

Is a cancel code displayed?

Perform the diagnosis according to the cancel code. CRUISE CONTROL (DIAGNOSTICS)>Cancel Code>LIST

9

9. INSPECTION OF SET INDICATOR.

Check the illumination of the SET indicator.

Does the SET indicator illuminate?

10

Go to phenomenon 3. CRUISE CONTROL (DIAGNOSTICS)>Diagnostics with Phenomenon>DIAGNOSTIC PROCEDURE WITH PHENOMENON

10. CHECK VEHICLE SPEED IS HELD WITHIN SET SPEED.

Make sure the vehicle speed is held within set speed.

Is the vehicle speed kept within the setting speed ±3 km/h (±2 MPH)? (Confirm that on a level road.)

11

Go to phenomenon 4. CRUISE CONTROL (DIAGNOSTICS)>Diagnostics with Phenomenon>DIAGNOSTIC PROCEDURE WITH PHENOMENON

11. CHECK RES/+ OPERATION.

Check the RES/+ switch operation.

Does the vehicle speed increase or return to set speed after RES/+ switch has been pressed?

12

Go to phenomenon 5. CRUISE CONTROL (DIAGNOSTICS)>Diagnostics with Phenomenon>DIAGNOSTIC PROCEDURE WITH PHENOMENON

12. CHECK SET/− OPERATION.

Check the SET/− switch operation.

Does the vehicle speed decrease after SET/− switch has been pressed?

13

Go to phenomenon 6. CRUISE CONTROL (DIAGNOSTICS)>Diagnostics with Phenomenon>DIAGNOSTIC PROCEDURE WITH PHENOMENON

13. CANCEL OPERATION CHECK.

Check the CANCEL switch operation.

Is the cruise control released after CANCEL switch has been pressed?

14

Go to phenomenon 7. CRUISE CONTROL (DIAGNOSTICS)>Diagnostics with Phenomenon>DIAGNOSTIC PROCEDURE WITH PHENOMENON

14. CHECK CRUISE CONTROL RELEASE OPERATION.

Check the cruise control release operation.

Is the cruise control released after brake pedal has been depressed?

15

Go to phenomenon 8. CRUISE CONTROL (DIAGNOSTICS)>Diagnostics with Phenomenon>DIAGNOSTIC PROCEDURE WITH PHENOMENON

15. CHECK CRUISE CONTROL RELEASE OPERATION.

Check the cruise control release operation.

Is the cruise control released after shifting to the neutral position?

Finish the diagnosis.

Go to phenomenon 9. CRUISE CONTROL (DIAGNOSTICS)>Diagnostics with Phenomenon>DIAGNOSTIC PROCEDURE WITH PHENOMENON

CRUISE CONTROL (DIAGNOSTICS) > Check List for Interview
CHECK

Inspect the following items regarding the vehicle’s state.

Cruise Control Check List for Interview Date of Vehicle Bring-in    Year    Month    Date
Customer’s name | Registration No. | Initial year of registration Year    Month    Date
Vehicle model | Frame number
Interviewer | Inspector | Engine type | Odometer reading
Customer specified content • • •
Date and time when the trouble occurred |  | Frequency of trouble occurrence | Always occurs Sometimes occurs (   times per day,   times per month)
Condition of trouble occurrence (How the trouble occurs) |  | Weather | Fine • Cloudy • Rainy • Snowy • Others (       )
Temperature | °C (°F) —   °C (°F)
Road conditions |
Road condition |
Accessory installation condition |
Diagnostic trouble code |
Time stamp |
Control module item number/Ver. |
Condition of trouble occurrence (How the trouble occurs) |
Vehicle bring-in history information |

CRUISE CONTROL (DIAGNOSTICS) > General Description
CAUTION
1. AIRBAG

When removing airbag related parts, refer to Cautions for Airbags. AIRBAG SYSTEM>General Description>CAUTION

2. CRUISE CONTROL

- When performing the entire diagnosis or cruise control diagnosis, first start the engine and wait until initial illumination of the ABS/VDC warning light completes. (If you start the diagnostics before performing the above procedures, the cancel code “43” is recorded and CRUISE indicator does not illuminate even though the CRUISE switch is pressed.)

- When performing diagnosis, observe the legal speed limit on the road.

- The cancel code will also appear when the cruise control is cancelled by the driver’s operation. Do not confuse them.

- Be sure to get an assistant to support the diagnosis while driving, and have him/her operate the select monitor.

- When removing the parts related to cruise control, refer to the caution of the cruise control system. CRUISE CONTROL SYSTEM>General Description>CAUTION

CRUISE CONTROL (DIAGNOSTICS) > General Description
GENERAL DESCRIPTION

The on-board diagnosis function of the cruise control system uses Subaru Select Monitor.

The on-board diagnosis function operates in two categories, which are used depending on the type of problems.

1.

Cruise Control Cancel Conditions Diagnosis:

(1)

This category of diagnosis requires actual vehicle driving in order to determine the cause, as when cruise speed is cancelled during driving although cruise cancel condition is not entered.

(2)

Cruise control memory in ECM stores the cancel code which occurred during driving. When there are multiple cancel code, they are shown on the Subaru Select Monitor.

- In the cruise control memory, not only the cruise control “cancel” occurred (although the “cancel” operation is not entered by the driver), but also the “cancel” condition input by the driver is stored.

- The latest memory content (latest code) is cleared when ignition switch is turned to OFF. However, memory contents set by the diagnosis of faulty switches related to the system and cruise control will remain as trouble history (memory code) after the ignition switch is turned to OFF.

2.

Real-time diagnosis:

Real-time diagnosis function is used to determine whether or not the input signal system is in good order, according to signal emitted from switches, sensors, etc.

(1)

Vehicle cannot be driven at cruise speed when the problem occurs in the cruise control system or relevant circuits.

(2)

Monitor the signal conditions from switches and sensors.

CRUISE CONTROL (DIAGNOSTICS) > General Description
INSPECTION

Before performing diagnosis, check the following items which might affect cruise control problems.

1. BASIC INSPECTION
1.

Check the battery. STARTING/CHARGING SYSTEMS(H4DO)>Battery>INSPECTION

2.

Check the main and other fuses, harnesses and connectors. Also check grounding.

CRUISE CONTROL (DIAGNOSTICS) > General Description
PREPARATION TOOL
1. SPECIAL TOOL

ILLUSTRATION | TOOL NUMBER | DESCRIPTION | REMARKS
| — | SUBARU SELECT MONITOR 4 | Used for setting of each function and troubleshooting for electrical system. For detailed operation procedures, refer to “Help” of application.

2. GENERAL TOOL

TOOL NAME | REMARKS
Circuit tester | Used for measuring resistance, voltage and current.
DST-i | Used for Subaru Select Monitor 4.

CRUISE CONTROL (DIAGNOSTICS) > Electrical Component Location
LOCATION

(1) | Inhibitor switch | (2) | Transmission control module (TCM) | (3) | Engine control module (ECM)

(1) | CRUISE indicator and SET indicator | (3) | Data link connector | (4) | Stop light & brake switch
(2) | Cruise control command switch

CRUISE CONTROL (DIAGNOSTICS) > Control Module I/O Signal
ELECTRICAL SPECIFICATION

For details on the input/output signals for the engine control module, refer to ENGINE (DIAGNOSTICS). ENGINE (DIAGNOSTICS)(H4DO)>Control Module I/O Signal

CRUISE CONTROL (DIAGNOSTICS) > Diagnostic Procedure for Subaru Select Monitor Communication
INSPECTION

Trouble symptom:

Cannot communicate with [Engine Control System].

Detecting condition:

- Defective connector

- Power supply circuit malfunction

- Defective CAN communication circuit

- Defective Subaru Select Monitor

For diagnostic procedure, refer to the diagnosis for the engine.

CRUISE CONTROL (DIAGNOSTICS) > Real-time Diagnosis
OPERATION
1.

On [Start] screen, select [Diagnosis].

2.

On [Select Vehicle] screen, input the target vehicle information and select [OK].

3.

On [Main Menu] screen, select [Each System].

4.

On [Select System] screen, select [Engine], and then select [Next].

5.

On [Select Function] screen, select [Data Monitor].

6.

Make sure that normal display is shown when operated as follows:

- Depress and release the brake pedal. (Stop light switch and brake switch are turned ON.)

- Turn the “CRUISE” switch to ON.

- Turn the “CANCEL” switch to ON.

- Turn the “SET/−” switch to ON.

- Turn the “RES/+” switch to ON.

- Place the shift lever in any position other than neutral.

For detailed operation procedures, refer to “Help” of application.

CRUISE CONTROL (DIAGNOSTICS) > Cancel Code
OPERATION
1.

On [Start] screen, select [Diagnosis].

2.

On [Select Vehicle] screen, input the target vehicle information and select [OK].

3.

On [Main Menu] screen, select [Each System].

4.

On [Select System] screen, select [Engine], and then select [Next].

5.

Drive vehicle at 40 km/h (25 MPH) or more and set the cruise control.

When performing the entire diagnosis or cruise control diagnosis, first start the engine and wait until initial illumination of the ABS/VDC warning light completes. (If you start the diagnostics before performing the above procedures, the cancel code “43” is recorded and CRUISE indicator does not illuminate even though the CRUISE switch is pressed.)

- When performing diagnosis, observe the legal speed limit on the road.

- The cancel code will also appear when the cruise control is cancelled by the driver’s operation. Do not confuse them.

- Be sure to get an assistant to support the diagnosis while driving, and have him/her operate the select monitor.

6.

When the set speed is canceled by itself (without any cancel operations such as applying brake) or when the cruise control could not be set by performing the setting operation, selecting the [Cancel Code] on the engine malfunction diagnosis screen will display the cancel code on the select monitor display.

The [Current] and [The past] are contained in the cancel code. The latest code recognized during current test drive is displayed in [Current]. Cancel codes resulting from fault diagnosis of switches relating to the system and cruise control are also displayed in [The past].

7.

Perform the clear memory of [Engine Control System]. COMMON(diag)>Clear memory>OPERATION

Cancel codes for switches relating to the system and cruise control are deleted by clearing memory on [Engine]. COMMON(diag)>Clear memory>OPERATION

- The latest code will be cleared by turning ignition switch to OFF.

- For detailed operation procedures, refer to “Help” of application.

- For details on cancel codes, refer to List of Cancel Code. CRUISE CONTROL (DIAGNOSTICS)>Cancel Code>LIST

CRUISE CONTROL (DIAGNOSTICS) > Cancel Code
LIST
1. LIST OF CANCEL CODE

- The cancel code is registered even when cancel is performed intentionally by the driver.

- Cancel codes are cleared if the ignition switch is turned to OFF.

- If a different cancel code is input after a cancel code (latest code) has been input, the latest code is overwritten.

- If the cruise indicator light is flashing, a malfunction is occurring in the system or cruise control related switch. The cancel code at this time is saved even after ignition switch is OFF as a memory code of a past malfunction.

- To display a cancel code, use the Subaru Select Monitor to read the code after the cruise control is deactivated during a driving test.

Code | Description & trouble part | Reference
11 | Main switch | This code is displayed without operating the CRUISE switch. CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>11
12 | Stop & Brake switch | This code is displayed without depressing the brake pedal. CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>12
14 | Neutral switch | This code is displayed without shifting to neutral position. CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>14
15 | Cancel switch | This code is displayed without operating the cancel switch. CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>15
16 | Ignition switch | This code is displayed without operating the ignition switch. CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>16
21 | Abnormality of switches when Ignition switch on | This code is displayed when the ignition switch is turned to ON without operating the cruise control command switch. CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>21
22 | Abnormality of change in vehicle speed | CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>22
24 | Abnormality of switches related to cruise control | This code is displayed with normal operation. CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>24
31 | Abnormal engine speed Signal | Cruise in 2nd shift position or more. CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>31
32 | Cruse Control out of Range | This code is displayed, though the vehicle speed is increased to the speed available for cruise set and set operation was performed again. CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>32
34 | Prohibition of cruise control at continuing big Accel. angle | This code is displayed when driving for a long period of time at higher speed than appropriate cruise set vehicle speed by operating accelerator pedal. In this case, the cruise setting is deactivated. CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>34
35 | Prohibition of cruise control at vehicle speed F/B malfunction | This code is displayed when driving condition is not suitable for cruise control. Eliminate the probable cause, and perform the cruise set operation again. CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>35
41 | VDC/TCS Operating | This code is displayed when driving condition is not suitable for cruise control. Eliminate the probable cause, and perform the cruise set operation again. CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>41
43 | ABS/VDC Failure | CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>43
44 | Body Integrated unit Failure | CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>44
45 | Meter Failure | CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>45
49 | TCM Failure | CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>49
61 | Brake Switch Failure | CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>61
62 | Neutral Switch Failure | CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>62
63 | Abnormality 1 of change in vehicle speed | CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>63
64 | Engine Sensor Failure 1 | CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>64
65 | Abnormality 1 of switches related to cruise control | CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>65
66 | Cruise Control Calculation Error | CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>66

CRUISE CONTROL (DIAGNOSTICS) > Diagnostic Procedure with Cancel Code
11

When CRUISE switch is pressed, or a malfunction related to CRUISE switch occurs, this is detected.

Trouble symptom:

- Cruise control cannot be set. (Cancelled immediately.)

- Cruise control cannot be released.

Wiring diagram:

Cruise control system WIRING SYSTEM>Cruise Control System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. CRUISE CONTROL (DIAGNOSTICS)>General Description>CAUTION

1. CHECK DATA MONITOR.

Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Engine]. ENGINE (DIAGNOSTICS)(H4DO)>Data Monitor

- Main Switch

- CC Cancel SW

- SET/COAST Switch

- RESUME/ACCEL Switch

Does the display change according to the cruise control command switch operation?

- Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

- In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

2

2. CHECK HARNESS.
1.

Turn the ignition switch to OFF.

2.

Disconnect the ECM connector and the steering roll connector (i72).

3.

Using a tester, measure the resistance between the ECM connector and steering roll connector.

Connector & terminal

(i72) No. 12 — (B134) No. 35:

(i72) No. 11 — (B134) No. 40:

(i72) No. 4 — (B134) No. 50:

Is the resistance less than 1 Ω?

3

Repair or replace the open circuit in harness between the ECM connector and the steering roll connector.

3. CHECK HARNESS.

Using a tester, measure the resistance between the steering roll connector and chassis ground.

Connector & terminal

(i72) No. 12 — Chassis ground:

(i72) No. 11 — Chassis ground:

(i72) No. 4 — Chassis ground:

Is the resistance 1 MΩ or more?

4

Repair or replace the short circuit to ground in harness between the ECM connector and the steering roll connector.

4. CHECK STEERING ROLL CONNECTOR.
1.

Remove the driver’s airbag module. AIRBAG SYSTEM>Driver’s Airbag Module>REMOVAL

2.

Using a tester, measure the resistance between terminals of steering roll connector.

Terminal No. | Inspection conditions | Standard
A4 — C12 | Always | Less than 1 Ω
A3 — C11 | Always | Less than 1 Ω
A9 — C4 | Always | Less than 1 Ω

Is the check result OK?

5

Replace the steering roll connector.

5. CHECK SWITCH.

Check the cruise control command switch. CRUISE CONTROL SYSTEM>Cruise Control Command Switch>INSPECTION

Is the inspection result of cruise control command switch OK?

Replace the ECM. FUEL INJECTION (FUEL SYSTEMS)(H4DO)>Engine Control Module (ECM)

Replace the cruise control command switch.

CRUISE CONTROL (DIAGNOSTICS) > Diagnostic Procedure with Cancel Code
12

Detected when the brake pedal is depressed, or the error related to the stop light & brake switch occurred.

Trouble symptom:

- Cruise control cannot be set.

- Cruise control cannot be released.

Wiring diagram:

Cruise control system WIRING SYSTEM>Cruise Control System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. CRUISE CONTROL (DIAGNOSTICS)>General Description>CAUTION

1. PERFORM UNIT INSPECTION OF STOP LIGHT & BRAKE SWITCH.

Check the stop light & brake switch. CRUISE CONTROL SYSTEM>Stop Light & Brake Switch

Are the check results for the stop light & brake switch unit, and installation position OK?

2

Replace the stop light & brake switch. Or adjust the installation position.

2. CHECK STOP LIGHT & BRAKE SWITCH CIRCUIT.
1.

Turn the ignition switch to OFF.

2.

Disconnect the stop light & brake switch connector.

3.

Turn the ignition switch to ON.

4.

Measure the voltage between the stop light & brake switch connector and chassis ground.

Connector & terminal

(B65) No. 1 (+) — Chassis ground (−):

Is the voltage 10 V or more?

3

- Check fuse No. 37 (fuse & relay box).

- Check for open or short circuit in harness between the stop light & brake switch and the fuse & relay box.

3. CHECK STOP LIGHT & BRAKE SWITCH CIRCUIT.

Measure the voltage between the stop light & brake switch connector and chassis ground.

Connector & terminal

(B65) No. 5 (+) — Chassis ground (−):

Is the voltage 10 V or more?

4

- Check fuse No. 19 (fuse & relay box).

- Check for open or short circuit in harness between the stop light & brake switch and the fuse & relay box.

4. CHECK STOP LIGHT & BRAKE SWITCH CIRCUIT.
1.

Turn the ignition switch to OFF.

2.

Disconnect the ECM connector.

3.

Measure the resistance between the ECM connector and stop light & brake switch connector.

Connector & terminal

(B65) No. 4 — (B134) No. 36:

(B65) No. 2 — (B134) No. 38:

Is the resistance less than 10 Ω?

5

Repair the harness.

5. CHECK STOP LIGHT & BRAKE SWITCH CIRCUIT.
1.

Connect the stop light & brake switch connector.

2.

Turn the ignition switch to ON.

3.

Measure the voltage between ECM connector and chassis ground both when the brake pedal is depressed and when not depressed.

Connector & terminal

(B134) No. 36 (+) — Chassis ground (−):

(B134) No. 38 (+) — Chassis ground (−):

Does the voltage appear in (B134) No. 36 when the brake pedal is depressed? (0 V when the brake pedal is not depressed)

Does the voltage appear in (B134) No. 38 when the brake pedal is not depressed? (0 V when the brake pedal is depressed)

Replace the ECM. FUEL INJECTION (FUEL SYSTEMS)(H4DO)>Engine Control Module (ECM)

Replace the stop light & brake switch. CRUISE CONTROL SYSTEM>Stop Light & Brake Switch

CRUISE CONTROL (DIAGNOSTICS) > Diagnostic Procedure with Cancel Code
14

Detected when the select lever is shifted to the neutral position, or when an error related to the neutral position switch occurs.

Trouble symptom:

Cruise control cannot be set.

Wiring diagram:

Cruise control system WIRING SYSTEM>Cruise Control System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. CRUISE CONTROL (DIAGNOSTICS)>General Description>CAUTION

1. CHECK INHIBITOR SWITCH CIRCUIT.
1.

Turn the ignition switch to OFF.

2.

Disconnect the inhibitor switch connector.

3.

Turn the ignition switch to ON.

4.

Measure the voltage between inhibitor switch connector and chassis ground.

Connector & terminal

(T7) No. 6 (+) — Chassis ground (−):

Is the voltage 10 V or more?

2

Check for open or short circuit in the harness between inhibitor switch connector and ECM.

2. CHECK INHIBITOR SWITCH CIRCUIT.
1.

Turn the ignition switch to OFF.

2.

Disconnect the ECM connector.

3.

Measure the resistance between inhibitor switch connector and ECM.

Connector & terminal

(T7) No. 9 — (B134) No. 50:

Is the resistance less than 10 Ω?

3

Repair the harness.

3. PERFORM UNIT INSPECTION OF INHIBITOR SWITCH.

Remove and check the inhibitor switch. CRUISE CONTROL SYSTEM>Inhibitor Switch

Is the inhibitor switch OK?

Replace the ECM.

FUEL INJECTION (FUEL SYSTEMS)(H4DO)>Engine Control Module (ECM)

Replace the inhibitor switch. CONTINUOUSLY VARIABLE TRANSMISSION(TR580)>Inhibitor Switch

CRUISE CONTROL (DIAGNOSTICS) > Diagnostic Procedure with Cancel Code
15

Detected when CANCEL switch is pressed or malfunction related to CRUISE switch occurs.

Trouble symptom:

- Cruise control cannot be set. (Cancelled immediately.)

- Cruise control cannot be released.

Refer to 11 for diagnostic procedure.

CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>11

CRUISE CONTROL (DIAGNOSTICS) > Diagnostic Procedure with Cancel Code
16

Detected when ignition switch is turned to OFF or malfunction related to the ignition switch occurs.

Trouble symptom:

Cruise control cannot be set.

Wiring diagram:

Cruise control system WIRING SYSTEM>Cruise Control System>WIRING DIAGRAM

Before performing diagnosis, refer to “CAUTION” in “General Description”. CRUISE CONTROL (DIAGNOSTICS)>General Description>CAUTION

1. CHECK IGNITION SWITCH CIRCUIT.
1.

Turn the ignition switch to OFF.

2.

Disconnect the ECM connector.

3.

Turn the ignition switch to ON.

4.

Measure the voltage between ECM connector and chassis ground.

Connector & terminal

(B134) No. 56 (+) — Chassis ground (−):

Is the voltage 10 V or more?

Check for poor contact of ECM connector.

- Check fuse No. 5 (fuse & relay box).

- Check the harness for open or short circuit between ignition switch and ECM.

CRUISE CONTROL (DIAGNOSTICS) > Diagnostic Procedure with Cancel Code
21

Cruise control command switch malfunction is detected.

Trouble symptom:

- Cruise control cannot be set. (Cancelled immediately.)

- Cruise control cannot be released.

Refer to 11 for diagnostic procedure.

CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>11

CRUISE CONTROL (DIAGNOSTICS) > Diagnostic Procedure with Cancel Code
22

Malfunction related to vehicle speed sensor is detected.

Diagnosis:

Open or short circuit in the vehicle speed sensor system.

Trouble symptom:

Cruise control cannot be set. (Cancelled immediately.)

Before performing diagnosis, refer to “CAUTION” in “General Description”. CRUISE CONTROL (DIAGNOSTICS)>General Description>CAUTION

1. CHECK ABS OR VDC WARNING LIGHT.
1.

Turn the ignition switch to ON.

2.

After the initial operation of the combination meter finished, check if the ABS or VDC warning light stays illuminated.

Does the warning light stay illuminated?

Check the VDCCM. BRAKE CONTROL (DIAGNOSTICS)>Basic Diagnostic Procedure

2

2. CHECK DTC OF LAN COMMUNICATION CIRCUIT.

Using the Subaru Select Monitor, read all DTCs. LAN SYSTEM (DIAGNOSTICS)>Diagnostic Trouble Code (DTC)

Is DTC displayed?

Perform inspection according to the displayed DTC.

Replace the ECM.

FUEL INJECTION (FUEL SYSTEMS)(H4DO)>Engine Control Module (ECM)

CRUISE CONTROL (DIAGNOSTICS) > Diagnostic Procedure with Cancel Code
24

Switch malfunction related to cruise control is detected.

Trouble symptom:

- Cruise control cannot be set. (Cancelled immediately.)

- Cruise control cannot be released.

Refer to 11 for diagnostic procedure.

CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>11

CRUISE CONTROL (DIAGNOSTICS) > Diagnostic Procedure with Cancel Code
31

Malfunction related to engine speed signal is detected.

Abnormal increase of engine speed is detected.

Gear is placed in 1st (only for MT vehicles) or Reverse position.

Drive with the gear in 2nd position or higher, and perform the cruise setting again. It is normal if the cancel code is not detected.

CRUISE CONTROL (DIAGNOSTICS) > Diagnostic Procedure with Cancel Code
32

Detected outside the system operation vehicle speed range.

Increase the vehicle speed to the speed available for cruise set and perform the cruise set operation again.

If the cancel code is detected even when the cruise setting is performed again, perform the diagnosis for 22.

Refer to 22 for diagnostic procedure.

CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>22

CRUISE CONTROL (DIAGNOSTICS) > Diagnostic Procedure with Cancel Code
34

The vehicle was driven at higher speed than the set vehicle speed for a long time (approximately 10 minutes) during cruise driving.

The cancel code is detected when the vehicle was driven for a long time at the higher speed than the speed available for cruise set through the accelerator operation.

Perform the cruise setting again. It is normal if the cancel code is not detected.

CRUISE CONTROL (DIAGNOSTICS) > Diagnostic Procedure with Cancel Code
35

Detected when the vehicle speed feedback is not possible.

Set vehicle speed cannot be maintained because of some reasons (steep uphill, parking brake forgotten to be returned to the home position, etc.) during cruise driving.

The cancel code is detected when the driving condition is not suitable for cruise control.

Eliminate the probable cause, and perform the cruise set operation again.

CRUISE CONTROL (DIAGNOSTICS) > Diagnostic Procedure with Cancel Code
41

VDC/TCS/EPB is operated.

Vehicle dynamics control (VDC) or TCS/EPB is operated during cruise driving or cruise setting. BRAKE CONTROL (DIAGNOSTICS)>Basic Diagnostic Procedure

CRUISE CONTROL (DIAGNOSTICS) > Diagnostic Procedure with Cancel Code
43

- Detected that part or all of the functions of ABS/VDC are not able to function.

  Detected that part or all of the functions of ABS/VDC are not able to function during cruise driving or cruise set operation. BRAKE CONTROL (DIAGNOSTICS)>Basic Diagnostic Procedure

- CRUISE indicator does not illuminate even though you pressed the CRUISE switch before starting the engine.

  Detected when the CRUISE switch is pressed during the initial diagnosis of ABS/VDC. It is normal if the CRUISE indicator illuminates when you press the CRUISE switch again after starting the engine and confirming that the initial illumination of the ABS/VDC warning light has been ended.

CRUISE CONTROL (DIAGNOSTICS) > Diagnostic Procedure with Cancel Code
44

Body integrated unit malfunction is detected.

Body integrated unit malfunction is detected during cruise driving or cruise setting operation.

BODY CONTROL(DIAGNOSTICS)>Basic Diagnostic Procedure>PROCEDURE

CRUISE CONTROL (DIAGNOSTICS) > Diagnostic Procedure with Cancel Code
45

Combination meter malfunction is detected.

Combination meter malfunction is detected during cruise driving or cruise setting operation.

COMBINATION METER (DIAGNOSTICS)>Basic Diagnostic Procedure>PROCEDURE

CRUISE CONTROL (DIAGNOSTICS) > Diagnostic Procedure with Cancel Code
49

Automatic transmission malfunction is detected.

Automatic transmission malfunction is detected during cruise driving or cruise setting operation. TRANSMISSION (DIAGNOSTICS)>Basic Diagnostic Procedure

CRUISE CONTROL (DIAGNOSTICS) > Diagnostic Procedure with Cancel Code
61

Malfunction in the stop light & brake switch is detected.

Trouble symptom:

- Cruise control cannot be set.

- Cruise control cannot be released.

Refer to 12 for diagnostic procedure.

CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>12

CRUISE CONTROL (DIAGNOSTICS) > Diagnostic Procedure with Cancel Code
62

Neutral position switch malfunction is detected.

Trouble symptom:

Cruise control cannot be set.

Refer to 14 for diagnostic procedure.

CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>14

CRUISE CONTROL (DIAGNOSTICS) > Diagnostic Procedure with Cancel Code
63

Malfunction of vehicle speed signal variation is detected.

Trouble symptom:

Cruise control cannot be set. (Cancelled immediately.)

Refer to 22 for diagnostic procedure.

CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>22

This cancel code may be detected when the vehicle suddenly started with VDC OFF on low µ road surface. In this case, restart the engine and perform the cruise control setting operation again. If the cancel code is not detected, it is normal.

CRUISE CONTROL (DIAGNOSTICS) > Diagnostic Procedure with Cancel Code
64

- Malfunction related to engine is detected.

- Abnormal decrease in engine speed is detected during cruise driving.

If the malfunction indicator light remains on or blinks, perform the diagnosis for engine. ENGINE (DIAGNOSTICS)(H4DO)>Basic Diagnostic Procedure

If the malfunction indicator is not remaining on/blinking, this cancel code may be detected due to malfunction of the ECM. In this case, restart the engine and perform the cruise control setting operation again. If the cancel code is not detected, it is normal. (Temporary malfunction)

CRUISE CONTROL (DIAGNOSTICS) > Diagnostic Procedure with Cancel Code
65

Cruise control command switch malfunction is detected.

When the command switch is pressed ON for a long time (approximately two minutes), stuck ON condition is detected.

Trouble symptom:

- Cruise control cannot be set. (Cancelled immediately.)

- Cruise control cannot be released.

Refer to 11 for diagnostic procedure.

CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>11

CRUISE CONTROL (DIAGNOSTICS) > Diagnostic Procedure with Cancel Code
66

- Cruise control calculation malfunction is detected.

- Abnormal increase in target cruising vehicle speed is detected.

- Abnormal condition is detected in which cruise control is not deactivated even after the brake pedal is depressed.

If the malfunction indicator light remains on or blinks, perform the diagnosis for engine. ENGINE (DIAGNOSTICS)(H4DO)>Basic Diagnostic Procedure

If the malfunction indicator is not remaining on/blinking, this cancel code may be detected due to malfunction of the ECM. In this case, restart the engine and perform the cruise control setting operation again. If the cancel code is not detected, it is normal. (Temporary malfunction)

CRUISE CONTROL (DIAGNOSTICS) > Diagnostics with Phenomenon
DIAGNOSTIC PROCEDURE WITH PHENOMENON

Phenomenon | Check Item | Note
1 | CRUISE switch is not turned ON. (CRUISE indicator does not illuminate.) Or cruise control was canceled without operating the CRUISE switch. | (1) Perform cruise cancel conditions diagnosis. | Perform the diagnosis according to displayed cancel code. CRUISE CONTROL (DIAGNOSTICS)>Cancel Code>LIST > LIST OF CANCEL CODE
(2) Perform the real-time diagnosis. | Check the input signal of cruise control system. CRUISE CONTROL (DIAGNOSTICS)>Real-time Diagnosis
(3) Check the cruise control command switch. | CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>11
(4) Check the CRUISE indicator. | CRUISE CONTROL (DIAGNOSTICS)>Diagnostics with Phenomenon>CHECK CRUISE INDICATOR LIGHT AND CRUISE SET INDICATOR LIGHT
2 | Cruise control cannot be set. Or cruise control is cancelled without releasing operation. | (1) Perform cruise cancel conditions diagnosis. | Perform the diagnosis according to displayed cancel code. CRUISE CONTROL (DIAGNOSTICS)>Cancel Code>LIST > LIST OF CANCEL CODE
(2) Perform the real-time diagnosis. | Check the input signal of cruise control system. CRUISE CONTROL (DIAGNOSTICS)>Real-time Diagnosis
(3) Check the cruise control command switch. | CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>11
(4) Check stop light switch and brake switch. | BRAKE>Stop Light Switch CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>12
(5) Check the neutral position switch. | CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>14 CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>62
(6) Check vehicle speed sensor. | CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>22
3 | SET indicator does not illuminate. | Check the SET indicator. | CRUISE CONTROL (DIAGNOSTICS)>Diagnostics with Phenomenon>CHECK CRUISE INDICATOR LIGHT AND CRUISE SET INDICATOR LIGHT
4 | Vehicle speed is not held within set speed ±3 km/h (±2 MPH). | Check the vehicle speed sensor. | CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>22
5 | Vehicle speed does not increase or does not return to set speed after RES/+ switch has been pressed. | (1) Perform the real-time diagnosis. | Check the input signal of cruise control system. CRUISE CONTROL (DIAGNOSTICS)>Real-time Diagnosis
(2) Check the RES/+ switch. | CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>11
6 | Vehicle speed does not decrease after SET/− switch has been pressed. | (1) Perform the real-time diagnosis. | Check the input signal of cruise control system. CRUISE CONTROL (DIAGNOSTICS)>Real-time Diagnosis
(2) Check the SET/− switch. | CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>11
7 | Cruise control is not released after CANCEL switch has been pressed. | (1) Perform the real-time diagnosis. | Check the input signal of cruise control system. CRUISE CONTROL (DIAGNOSTICS)>Real-time Diagnosis
(2) Check the CANCEL switch. | CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>11
8 | Cruise control is not released after brake pedal has been depressed. | (1) Perform the real-time diagnosis. | Check the input signal of cruise control system. CRUISE CONTROL (DIAGNOSTICS)>Real-time Diagnosis
(2) Check stop light switch and brake switch. | CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>12 BRAKE>Stop Light Switch>INSTALLATION
9 | Cruise control is not released after shifting to the neutral position. | (1) Perform the real-time diagnosis. | Check the input signal of cruise control system. CRUISE CONTROL (DIAGNOSTICS)>Real-time Diagnosis
(2) Check the neutral position switch. | CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>14 CRUISE CONTROL (DIAGNOSTICS)>Diagnostic Procedure with Cancel Code>62

CRUISE CONTROL (DIAGNOSTICS) > Diagnostics with Phenomenon
CHECK CRUISE INDICATOR LIGHT AND CRUISE SET INDICATOR LIGHT

Trouble symptom:

Cruise control can be set, but the CRUISE indicator and SET indicator do not illuminate.

Before performing diagnosis, refer to “CAUTION” in “General Description”. CRUISE CONTROL (DIAGNOSTICS)>General Description>CAUTION

1. CHECK LAN SYSTEM.

Perform the diagnosis for LAN system. LAN SYSTEM (DIAGNOSTICS)>Basic Diagnostic Procedure

Is LAN system OK?

Perform the inspection according to the diagnosis for LAN system.

Replace the ECM. FUEL INJECTION (FUEL SYSTEMS)(H4DO)>Engine Control Module (ECM)