DTC P0715 [FN4A-EL]

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DTC P0715 [FN4A-EL]

B3E050219090W13

DTC P0715 | Input/turbine speed sensor circuit malfunction
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DETECTION CONDITION

• When all conditions below are satisfied and 0.7 s or more have passed.

  - D or M range of TR switch input
  - Driving vehicle at vehicle speed of 40 km/h {25 mph} or more
  - Input/turbine speed sensor signal not input

Diagnostic support note:
• This is a continuous monitor (CCM).
• The MIL illuminates if the PCM detects the above malfunction conditions during the first drive cycle.
• A PENDING CODE is not available.
• FREEZE FRAME DATA is available.
• The AT warning light illuminates.
• The DTC is stored in the PCM memory.

POSSIBLE CAUSE

• Input/turbine speed sensor malfunction
• Short to ground in wiring harness between input/turbine speed sensor terminal A and PCM terminal 1K (Z6)/1Q (LF)
• Short to ground in wiring harness between input/turbine speed sensor terminal B and PCM terminal 1O (Z6)/1M (LF)
• Open circuit in wiring harness between input/turbine speed sensor terminal A and PCM terminal K (Z6)/1Q (LF)
• Open circuit in wiring harness between input/turbine speed sensor terminal B and PCM terminal 1O (Z6)/1M (LF)
• Damaged connectors between input/turbine speed sensor and PCM
• PCM malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | VERIFY FREEZE FRAME DATA HAS BEEN RECORDED • Has the FREEZE FRAME DATA been recorded? | Yes | Go to the next step.
No | Record the FREEZE FRAME DATA on the repair order, then go to the next step.
2 | VERIFY RELATED REPAIR INFORMATION AVAILABILITY • Verify related Service Bulletins and/or on-line repair information availability. • Is any related repair information available? | Yes | Perform repair or diagnosis according to the available repair information. • If the vehicle is not repaired, go to the next step.
No | Go to the next step.

3

VERIFY CURRENT INPUT SIGNAL STATUS

• Turn the ignition switch to the LOCK position.
• Start the engine.
• Measure the frequency of input/turbine speed sensor using a oscilloscope.

  - IG ON: 0 Hz
  - Idle: Within 320-374 Hz (P, N position)

• Are frequencies of input/turbine speed sensor within specifications?

Yes

Go to the intermittent concern troubleshooting procedure.
(See INTERMITTENT CONCERN TROUBLESHOOTING [ZJ, Z6].)
(See INTERMITTENT CONCERN TROUBLESHOOTING [LF].)

No | Go to the next step.

4

INSPECT INPUT/TURBINE SPEED SENSOR CONNECTOR FOR POOR CONNECTION

• Turn the ignition switch to the LOCK position.
• Disconnect the input/turbine speed sensor connector.
• Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
• Is the connection normal?

Yes

Go to the next step.

No | Repair or replace the connector and/or terminals, then go to Step 10.
5 | INSPECT INPUT/TURBINE SPEED SENSOR RESISTANCE • Measure the resistance between the input/turbine speed sensor terminals (part-side). • Is the resistance within 250-600 ohms between input/turbine speed sensor terminals (part-side)? (See INPUT/TURBINE SPEED SENSOR INSPECTION.) | Yes | Go to the next step.
No | Replace the input/turbine speed sensor, then go to Step 10. (See INPUT/TURBINE SPEED SENSOR REMOVAL/INSTALLATION.)
6 | INSPECT INPUT/TURBINE SPEED SENSOR • Remove input/turbine speed sensor. • Is there iron powder stuck on input/turbine speed sensor? (See INPUT/TURBINE SPEED SENSOR REMOVAL/INSTALLATION.) | Yes | Clean the input/turbine speed sensor, then go to Step 10.
No | Go to the next step.
7 | INSPECT PCM CONNECTOR FOR POOR CONNECTION • Disconnect the PCM connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Is the connection normal? | Yes | Go to the next step.
No | Repair or replace the connector and/or terminals, then go to Step 10.

8

INSPECT INPUT/TURBINE SPEED SENSOR CIRCUIT FOR OPEN CIRCUIT

• Inspect the following input/turbine speed sensor terminals (wiring harness-side) and PCM terminals (wiring harness-side):

  - A and 1K (Z6)/1Q (LF)
  - B and 1O (Z6)/1M (LF)

• Is there continuity?

Yes

Go to the next step.

No | Repair or replace the wiring harness, then go to Step 10.

9

INSPECT INPUT/TURBINE SPEED SENSOR CIRCUIT FOR SHORT TO GROUND

• Inspect input/turbine speed sensor terminal (wiring harness-side) and body ground.

  - A and body ground
  - B and body ground

• Is there continuity?

Yes

Repair or replace the wiring harness, then go to the next step.

No | Go to the next step.
10 | VERIFY TROUBLESHOOTING OF DTC P0715 COMPLETED • Make sure to reconnect all the disconnected connectors. • Clear the DTC from the memory using the WDS or equivalent. • Drive the vehicle a vehicle speed 40 km/h {25 mph} or more for 0.7 s or more. • Is the same DTC present? | Yes | Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [ZJ, Z6].) (See PCM REMOVAL/INSTALLATION [LF].)
No | Go to the next step.
11 | VERIFY AFTER REPAIR PROCEDURE • Perform the "After Repair Procedure". (See AFTER REPAIR PROCEDURE [FN4A-EL].) • Are any DTCs present? | Yes | Go to the applicable DTC inspection.
No | DTC troubleshooting completed.