P2765

P2765 INPUT SPEED SENSOR





Description






Input speed sensor is installed in transmission and detects transmission input shaft speed. ECM receives input speed sensor signal and performs SynchroRev Match mode (S-MODE) control according to input speed sensor signal.




DTC Logic

DTC DETECTION LOGIC

NOTE:
If DTC P2765 is displayed with DTC P0335, P0340 or P0345, first perform the trouble diagnosis for DTC
P0335, P0340 or P0345. Refer to P0335 or P0340.






DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10 V at idle.
- GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine.
2. Drive the vehicle for at least 10 consecutive seconds under the following conditions.






CAUTION:
Always drive vehicle at a safe speed
3. Check DTC.
Is DTC detected?
YES - Go to "Diagnosis Procedure".
NO - INSPECTION END




Diagnosis Procedure
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection M95. Refer to Ground Inspection in Circuit Inspection.
Is the inspection result normal?
YES - GO TO 2.
NO - Repair or replace ground connection.
2.CHECK INPUT SPEED SENSOR POWER SUPPLY CIRCUIT
1. Disconnect input speed sensor harness connector.
2. Turn ignition switch ON.
3. Check the voltage between input speed sensor harness connector and ground.






Is the inspection result normal?
YES - GO TO 4.
NO - GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the following.
- Harness connectors F103, M116
- Harness for open or short between input speed sensor and IPDM E/R
- Repair open circuit, short to ground or short to power in harness or connectors.
4.CHECK INPUT SPEED SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between input speed sensor harness connector and ECM harness connector.






4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES - GO TO 5.
NO - Repair open circuit, short to ground or short to power in harness or connectors.
5.CHECK INPUT SPEED SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check the continuity between input speed sensor harness connector and ECM harness connector.






2. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES - GO TO 6.
NO - Repair open circuit, short to ground or short to power in harness or connectors.
6.CHECK INPUT SPEED SENSOR
Refer to "Component Inspection".
Is the inspection result normal?
YES - GO TO 7.
NO - Replace input speed sensor.
7.CHECK INTERMITTENT INCIDENT
Refer to Intermittent Incident.
- INSPECTION END




Component Inspection
1.CHECK INPUT SPEED SENSOR-I
1. Turn ignition switch OFF.
2. Disconnect input speed sensor harness connector.
3. Remove the sensor.






4. Visually check the sensor for chipping.
Is the inspection result normal?
YES - GO TO 2.
NO - Replace input speed sensor.
2.CHECK INPUT SPEED SENSOR-II
Check resistance between input speed sensor terminals as per the following items.






Is the inspection result normal?
YES - INSPECTION END
NO - Replace input speed sensor.