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Home >> Acura >> 2016 >> RLX Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTC Diagnostics (4 Of 6) (Except Hybrid) >> DTC Troubleshooting >> DTC P0976

DTC P0976

DTC P0976  : Shift Solenoid Valve B (Short)

NOTE:
  • Before you troubleshoot, record all freeze data and any on-board snapshot with the HDS, and review the 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 P0976 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.
DTC Description Confirmed DTC Pending DTC Freeze Frame
P0976 Shift Solenoid Valve B (Short)      

DTC (A/T)

  1. Problem verification

    -1. Turn the vehicle to the ON mode.

    -2. Clear the DTC with the HDS.

    -3. Start the engine.

    -4. With the brake pedal pressed, shift to D, and wait for at least 3 seconds, then move the shift lever back into P.

    -5. Check for Pending or Confirmed DTCs with the HDS.

    DTC Description Confirmed DTC Pending DTC Freeze Frame
    P0976 Shift Solenoid Valve B (Short)      

    Is DTC P0976 indicated?

    YES 

    The failure is duplicated. Go to step 2.

    NO 

    Intermittent failure, the system is OK at this time. Check for poor connections and loose terminals between shift solenoid valve B and the PCM.

  2. Determine possible failure area (shift solenoid valve B, others)

    -1. Turn the vehicle to the OFF (LOCK) mode.

    -2. Disconnect the following connector.

    Shift solenoid valve B 2P connector

    -3. Turn the vehicle to the ON mode.

    -4. Clear the DTC with the HDS.

    -5. Start the engine.

    -6. With the brake pedal pressed, shift to D, and wait for at least 3 seconds, then move the shift lever back into P.

    -7. Check for Pending or Confirmed DTCs with the HDS.

    DTC Description Confirmed DTC Pending DTC Freeze Frame
    P0976 Shift Solenoid Valve B (Short)      

    Is DTC P0976 indicated?

    YES 

    Shift solenoid valve B is OK. Go to step 3.

    NO 

    Faulty shift solenoid valve B. Replace the secondary valve body (shift solenoid valve B) .

  3. Shorted wire check (SHB line)

    -1. Turn the vehicle to the OFF (LOCK) mode.

    -2. Jump the SCS line with the HDS.

    -3. Disconnect the following connector.

    PCM connector B (51P)

    -4. Check for continuity between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
      Shift solenoid valve B 2P connector: disconnected
      PCM connector B (51P): disconnected
    Test circuit SHB
    Test point 1 PCM connector B (51P) No. 4 (PNK)
    Test point 2 Body ground
    GHH345107Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    Repair a short to ground in the SHB wire between shift solenoid valve B and the PCM.

    NO 

    The SHB wire is OK. Replace the PCM .