DTC P0971: Problem in A/T Clutch Pressure Control Solenoid Valve C
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 ).
- This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission.
- If DTC P0971 is stored in the PCM, the transmission does not shift to any gear other than 1st, 2nd, or 5th gear because of the fail-safe function.
- 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.
- Check for Pending or Confirmed DTCs with the HDS.
Is DTC P0971 indicated?
YES - Go to step 4.
NO - Intermittent failure, the system is OK at this time.
- Check the A/T C.P.C. Sol VLV. C Actual command with the HDS in the A/T Data List.
Is there 35 mA or more?
YES - Go to step 5.
NO - 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 ).
- Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
- Jump the SCS line with the HDS.
- Disconnect PCM connector B (49P).
- Check for continuity between:
- PCM connector terminal B1 and body ground.
- PCM connector terminal B40 and body ground.
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES - Replace the PCM (see ECM/PCM REPLACEMENT ).
NO - Repair an open in the wires between:
- PCM connector terminal B1 and body ground (G101) (see CONNECTOR TO FUSE/RELAY BOX INDEX ), or repair poor body ground (G101).
- PCM connector terminal B40 and body ground (G101) (see CONNECTOR TO FUSE/RELAY BOX INDEX ), or repair poor body ground (G101).