P0780

DTC P0780: Mechanical Problem in Hydraulic Control System of Shift Solenoid Valve A and A/T Clutch Pressure Control Solenoid Valves A and B. or Problem in Hydraulic Control System

NOTE:
- Record all freeze data and review General Troubleshooting Information before you troubleshoot.
- Keep these replacement solenoid valves on hand:
- Shift solenoid valve A
- A/T clutch pressure control solenoid valves A and B

1. Check whether the OBD II scan tool indicates another code.
Does the OBD II scan tool indicate another code?
YES-Perform the troubleshooting flowchart for the indicated code(s). Recheck for code P0780 after troubleshooting.
NO-Go to step 2.
2. Turn the ignition switch OFF.
3. Replace the shift solenoid valve A.
4. Replace the A/T clutch pressure control solenoid valves A and B.
5. Reset the PCM memory by removing the BACK UP fuse in the passenger's under-dash fuse/relay box for more than 10 seconds.
6. Calibrate the engine control system in the PCM, and drive the vehicle for several minutes in 1st, 2nd, 3rd, 4th, and 5th gears in the D5 position.
7. Recheck for code P0780.
Does the OBD II scan tool indicate code P0780?
YES-Replace the transmission.
NO-The problem has been corrected.