Troubleshooting

DTC P0976 Shift Solenoid "B" Control Circuit Low (Shift Solenoid Valve S2)

CIRCUIT DESCRIPTION

DTC Detection Condition:

Shifting from 1st to 5th is performed in combination with ON and OFF of the shift solenoid valves No. 1, No. 2 and No. 3 controlled by ECM. If an open or short circuit occurs in either of the shift solenoid valves, the ECM controls the remaining normal shift solenoid valve to allow the vehicle to be operated smoothly (Fail safe function).

HINT: Check the shift solenoid valve No. 1 when DTC P0973 and P0974 is output, check the shift solenoid valve No. 2 when DTC P0976 and P0977 is output and check the shift solenoid valve No. 3 when DTC P0979 and P0980 is output.







Fail safe function:
If either of the shift solenoid valve circuits develops an open or short, the ECM turns the other shift solenoid ON and OFF to shift to the gear positions shown in the table below. The ECM also turns the shift solenoid valve SL OFF at the same time. If both solenoids are malfunctioning, hydraulic control cannot be performed electronically and must be done manually.

Manual shifting as shown in the following table must be done (In the case of a short circuit, the ECM stops sending current to the short circuited solenoid).

Wiring Diagram:

Step 1 - 2:

Step 3:

INSPECTION PROCEDURE