P0760
DTC PO76OSHIFT SOLENOID C (SHIFT SOLENOID 3) MALFUNCTION (OVR - F)
Description
- This solenoid is also mounted to the control valve. It is turned "ON" or "OFF" according to the signal sent from the Transmission Control Module (TCM). This operation controls the engagement and disengagement of the overrunning clutch.
- Controls 3-2 shift timing and overrunning clutch operation. Shift timing is controlled by controlling release speed of oil pressure to reduce shock while down shifting. The overrunning clutch is controlled so that it will operate during coasting to apply engine brake.
DTC Detecting Condition
Two consecutive trips with fault.
Trouble Symptom
Ineffective engine brake with selector lever in "3".
1. Check any other DTC (Besides DTC P0760) on display.
[CHECK]: Is there any other DTC on display?
[YES]: Inspect the relevant DTC diagnostics chart.
[NO]: Go to step 2.
2. Check inhibitor switch circuit.
[CHECK]: Is there any trouble in inhibitor switch circuit?
[YES]: Repair or replace inhibitor switch circuit.
[NO]: Go to step 3.
3. Check gear position.
a. Turn ignition switch to"OFF".
b. Connect the Subaru Select Monitor to data link connector.
c. Lift-up or raise the vehicle and support with safety stands.
CAUTION: On AWD models, raise all wheels off ground.
d. Start and warm-up the engine and transmission.
e. Subaru Select Monitor switch to "ON".
f. Designate mode using function key.
Function mode for A/T: F1O
g. Move selector lever to "D" and drive the vehicle.
h. Read data on Subaru Select Monitor.
[CHECK]: Change gear position according to throttle position and vehicle speed.
[YES]: Go to next [CHECK].
[NO]: Go to step 4.
[CHECK]: Is there poor contact in TCM connector?
[YES]: Repair poor contact in TCM connector.
[NO]: Go to next [CHECK].
[CHECK]: Is there any mechanical trouble in the automatic transmission?
[YES]: Repair or replace automatic transmission.
[NO]: Replace TCM with a new one.
4. Check shift solenoid 1 circuit.
[CHECK]: Is there any trouble in shift solenoid 1 circuit?
[YES]: Repair or replace shift solenoid 1 circuit.
[NO]: Go to step 5.
5. Check shift solenoid 2 circuit.
[CHECK]: Is there any trouble in shift solenoid 2 circuit?
[YES]: Repair or replace shift solenoid 2 circuit.
[NO]: Go to step 6.
6. Check shift solenoid 3 circuit.
[CHECK]: Is there any trouble in shift solenoid 3 circuit?
[YES]: Repair or replace shift solenoid 3 circuit.
[NO]: Go to next [CHECK].
[CHECK]: Is there poor contact in TCM connector?
[YES]: Repair poor contact in TCM connector.
[NO]: Go to next [CHECK].
[CHECK]: Is there any mechanical trouble in the automatic transmission?
[YES]: Repair or replace automatic transmission.
[NO]: Replace TCM with a new one.