P1760

DTC P1760 OVERRUN CLUTCH SOLENOID VALVE







Description
The overrun clutch solenoid valve is activated by the TCM in response to signals sent from the PNP switch, overdrive control switch, vehicle speed and throttle position sensors. The overrun clutch operation will then be controlled.

TCM TERMINALS AND REFERENCE VALUE:

ON BOARD DIAGNOSIS LOGIC:

DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE

CAUTION: Always drive vehicle at a safe speed.

NOTE: If "DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE" has been previously conducted, always turn ignition switch OFF and wait at least 5 seconds before conducting the next test. TESTING CONDITION: Always drive vehicle on a level road to improve accuracy of test. After the repair, perform the following procedure to confirm the malfunction is eliminated.










With CONSULT-II
1. Turn ignition switch ON and select "DATA MONITOR" mode for "ENGINE" with CONSULT-II.
2. Start engine.
3. Accelerate vehicle to a speed of more than 10 km/h (6 MPH) in D position (O/D ON).
4. Release accelerator pedal completely in D position (O/D OFF). ST)



With GST
Follow the procedure "With CONSULT-II".

AT - OVRCSV:

Diagnostic Procedure
1. CHECK GROUND CIRCUIT
1. Turn ignition switch to OFF position.
2. Disconnect terminal cord assembly connector in engine compartment.







3. Check resistance between terminal cord assembly connector E72 terminal 3 and ground.

Is resistance approximately 20 - 40 Ohms?

Yes >> GO TO 2.

No >> 1. Remove control valve assembly.

2. Check the following items:
- Overrun clutch solenoid valve
- Harness of terminal cord assembly for short or open


2. CHECK POWER SOURCE CIRCUIT
1. Turn ignition switch to OFF position.
2. Disconnect TCM harness connector.
3. Check resistance between terminal cord assembly connector E72 terminal 3 and TCM harness connector M77 terminal 20. Refer to "Wiring Diagram - AT - OVRCSV".

If OK, check harness for short to ground and short to power.

Is resistance approximately 0 Ohms?

Yes >> GO TO 3.

No >> Repair open circuit or short to ground or short to power in harness or connectors.


3. CHECK DTC
Perform Diagnostic Trouble Code (DTC) confirmation procedure.

OK or NG?

OK >> INSPECTION END.

NG >>
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.


OVERRUN CLUTCH SOLENOID VALVE / Component Inspection










Resistance Check
Check resistance between terminal 4 and ground.







Operation Check
Check solenoid valve by listening for its operating sound while applying battery voltage to the terminal 4 and ground.