DTC P0797: A/T Clutch Pressure Control Solenoid Valve C Stuck ON
WARNING: This page is about a different variant/trim than selected.
NOTE:
- Before you troubleshoot, record all freeze data and any on-board snapshot with the HDS, and review the General Troubleshooting Information (see GENERAL TROUBLESHOOTING INFORMATION ).
- If DTC P0797 is stored in the PCM, the transmission does not shift to any gear other than 1st or 4th gear because of the fail-safe function.
- Warm up the engine to normal operating temperature (the radiator fan comes on).
- Make sure that the transmission is filled to the proper level, and check for fluid leaks.
- Drain the ATF (see ATF REPLACEMENT
) through a strainer. Inspect the strainer for metal debris or excessive clutch material.
Does the strainer have metal debris or excessive clutch material?
YES - Replace the transmission.
NO - Replace the ATF (see ATF REPLACEMENT ), then go to step 4.
- Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
- Clear the DTC with the HDS.
- Start the engine.
- With the brake pedal pressed, shift to D, and check the 4th Pressure Switch signal with the HDS in the A/T Data List.
Does the 4th Pressure Switch turn on momentarily?
YES - Faulty A/T clutch pressure control solenoid valve C. Replace the secondary valve body (A/T clutch pressure control solenoid valve C) (see SECONDARY VALVE BODY REPLACEMENT ).
NO - Intermittent failure, the system is OK at this time.