P0980

Diagnostic Chart:

Schematic:

Shift solenoid 3 is turned electrically ON/hydraulically OFF, relieving pressure from the M3 shift valve, during 1st, 2nd, and 3rd and reverse gear operation. Shift solenoid 3 is turned electrically OFF/hydraulically ON, applying pressure to the M3 shift valve, during 4th-5th gear operation. The transaxle control module (TCM) controls shift solenoid 3 by controlling an internal driver that pulls the solenoid circuit to voltage. During normal 3rd-4th gear shift operation, the TCM will turn OFF shift solenoid OFF until downshift to 3rd or lower occurs. Circuit 898 is monitored for low and high voltage feedback. DTC P0980 sets when shift solenoid 3 is commanded electrically OFF and the feedback voltage at the TCM is high.

DTC PARAMETERS
DTC P0980 will set if high voltage is detected on the shift solenoid 3 control circuit and:
^ The engine is running
^ Transaxle Protection Mode is OFF
^ Shift solenoid 3 commanded is OFF
^ Condition exists for a least 500 ms

The TCM will command Transaxle Protection Mode ON if this DTC is active.

DTC P0980 is a type A DTC.

DIAGNOSTIC AIDS
To located an intermittent problem, use a Scan tool to monitor SHIFT SOLENOID 3 CKT STATUS with the ignition ON, engine OFF. Wiggling wires while watching for a change on SHIFT SOLENOID 3 CKT STATUS may locate the area where an open or short to voltage in the wiring could lie.

Shift solenoid 3 resistance: 8.4-22.6 ohms