SPEED CONTROL SYSTEMS(H4DO)
SP(H4DO)

SPEED CONTROL SYSTEMS(H4DO) > General Description
SPECIFICATION

Accelerator pedal | Stroke | mm (in) | At pedal pad | 50 — 60 (1.97—2.36)

SPEED CONTROL SYSTEMS(H4DO) > General Description
COMPONENT

(1) | Accelerator pedal assembly | (3) | Clip | Tightening torque: N·m (kgf-m, ft-lb)
(2) | Accelerator plate | (4) | Accelerator stopper | T: | 7.5 (0.8, 5.5)

SPEED CONTROL SYSTEMS(H4DO) > General Description
CAUTION

- When performing service operation, refer to “Repair Contents” in “General Description”. REPAIR CONTENTS>Repair Contents

- Prior to starting work, pay special attention to the following:

  1. Always wear work clothes, a work cap, and protective shoes. Additionally, wear a helmet, protective goggles, etc. if necessary.

  2. Protect the vehicle using a seat cover, fender cover, etc.

  3. Prepare the service tools, clean cloth, containers to catch grease and oil, etc.

- Vehicle components are extremely hot immediately after driving. Be wary of receiving burns from heated parts.

- When performing a repair, identify the cause of trouble and avoid unnecessary work.

- Before disconnecting connectors of sensors or units, be sure to disconnect the ground terminal from the battery sensor.

- Always use the jack-up point when the lifting device, shop jacks or rigid racks are used to support the vehicle.

- Before starting works, remove dirt and corrosion around the target area.

- Keep the removed parts in order and protect them from dust and dirt.

- All removed parts, if to be reused, should be reinstalled in the original positions with attention to the correct directions, etc.

- For the parts except for the non-reusable parts, replace then with new parts if necessary.

- Be sure to tighten bolts and nuts to the specified torque.

SPEED CONTROL SYSTEMS(H4DO) > General Description
PREPARATION TOOL
1. SPECIAL TOOL

ILLUSTRATION | TOOL NUMBER | DESCRIPTION | REMARKS
| 18460AA180 | CHECK BOARD | Used for measuring voltage and resistance of ECM terminals.
| — | 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 together with Subaru Select Monitor 4.

SPEED CONTROL SYSTEMS(H4DO) > Accelerator Pedal
REMOVAL
1.

Disconnect the ground terminal from battery sensor. REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the connector and remove the accelerator pedal assembly.

SPEED CONTROL SYSTEMS(H4DO) > Accelerator Pedal
INSTALLATION
1.

Install the accelerator pedal assembly, and connect the connector.

Tightening torque:

7.5 N·m (0.8 kgf-m, 5.5 ft-lb)

2.

Connect the ground terminal to battery sensor. REPAIR CONTENTS>NOTE > BATTERY

SPEED CONTROL SYSTEMS(H4DO) > Accelerator Pedal
INSPECTION
1. CHECK ACCELERATOR PEDAL SENSOR AREA (METHOD WITH CIRCUIT TESTER)
1.

Disconnect the ground terminal from battery sensor. REPAIR CONTENTS>NOTE > BATTERY

2.

Disconnect the ECM connector. FUEL INJECTION (FUEL SYSTEMS)(H4DO)>Engine Control Module (ECM)>REMOVAL

3.

Attach the ST between ECM and the engine wiring harness and the bulkhead harness. ENGINE (DIAGNOSTICS)(H4DO)>General Description>PREPARATION TOOL > HOW TO USE CHECK BOARD

Special tool:

CHECK BOARD (18460AA180)

4.

Connect the ground terminal to battery sensor. REPAIR CONTENTS>NOTE > BATTERY

5.

Turn to IG ON.

6.

Measure the voltage between ECM connector terminals.

Accelerator pedal sensor | Accelerator pedal | Terminal No. | Standard
Main | Not depressed (full closed) | 66 (+) — 55 (−) | 0.3 — 1.1 V
Depressed (full opened) | 2.3 — 3.8 V
Sub | Not depressed (full closed) | 64 (+) — 65 (−) | 0.3 — 1.1 V
Depressed (full opened) | 2.3 — 3.8 V

7.

After inspection, restore the vehicle to its original state.

2. CHECK ACCELERATOR PEDAL SENSOR AREA (METHOD WITH SUBARU SELECT MONITOR)
1.

Connect the Subaru Select Monitor.

2.

Turn to IG ON.

3.

Read the accelerator opening angle and the accelerator sensor voltage using Subaru Select Monitor. ENGINE (DIAGNOSTICS)(H4DO)>Data Monitor

Accelerator pedal sensor | Accelerator pedal opening angle | Standard
Main | 0.0% | 0.3 — 1.1 V
100.0% | 2.3 — 3.8 V
Sub | 0.0% | 0.3 — 1.1 V
100.0% | 2.3 — 3.8 V

3. OTHER INSPECTIONS
1.

Check that there is no deformation, cracks or other damages.

2.

Check for smooth operation when the accelerator pedal is depressed.

3.

Check if the accelerator pedal returns to its original position smoothly when the pedal is released.