Diagnosis Procedure
- CHECK INPUT SPEED SENSOR POWER CIRCUIT
- Turn ignition switch OFF.
- Disconnect input speed sensor connector.
- Turn ignition switch ON.
- Check voltage between input speed sensor harness connector terminal and ground.
+ - Voltage Input speed sensor Connector Terminal F37 3 Ground 10 - 16 V
Is the inspection result normal?
YES
GO TO STEP 2 .
NO
GO TO STEP 6 .
- CHECK INPUT SPEED SENSOR GROUND CIRCUIT
Check continuity between input speed sensor harness connector terminal and ground.
Input speed sensor - Continuity Connector Terminal F37 1 Ground Existed Is the inspection result normal?
YES
GO TO STEP 3 .
NO
Repair or replace malfunctioning parts.
- CHECK CIRCUIT BETWEEN INPUT SPEED SENSOR AND TCM (PART 1)
- Turn ignition switch OFF.
- Disconnect TCM connector.
- Check continuity between input speed sensor harness connector terminal and TCM harness connector terminal.
Input speed sensor TCM Continuity Connector Terminal Connector Terminal F37 2 F25 24 Existed
Is the inspection result normal?
YES
GO TO STEP 4 .
NO
Repair or replace malfunctioning parts.
- CHECK CIRCUIT BETWEEN INPUT SPEED SENSOR AND TCM (PART 2)
Check continuity between input speed sensor harness connector terminal and ground.
Input speed sensor - Continuity Connector Terminal F37 2 Ground Not existed Is the inspection result normal?
YES
GO TO STEP 5 .
NO
Repair or replace malfunctioning parts.
- CHECK TCM INPUT SIGNALS
- Connect all of disconnected connectors.
- Lift the vehicle.
- Start the engine.
- Check frequency of input speed sensor.
+ - Condition Frequency
(Approx.)TCM Connector Terminal F25 24 Ground - Selector lever: "M1" position
- Vehicle speed: 20 km/h (12 MPH)
880 Hz
Is the inspection result normal?
YES
Check intermittent incident. Refer to INTERMITTENT INCIDENT .
NO
Replace input speed sensor. Refer to REMOVAL AND INSTALLATION .
- DETECT MALFUNCTIONING ITEMS
Check the following items:
- Harness open circuit or short circuit between ignition switch and IPDM E/R. Refer to WIRING DIAGRAM - IGNITION POWER SUPPLY - .
- Harness open circuit or short circuit between IPDM E/R connector terminal 61 and input speed sensor connector terminal 3.
- 10A fuse (No. 46, located in the IPDM E/R). Refer to IPDM E/R TERMINAL ARRANGEMENT .
- IPDM E/R
Is the check result normal?
YES
Check intermittent incident. Refer to INTERMITTENT INCIDENT .
NO
Repair or replace malfunctioning parts.