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Home >> Acura >> 2014 >> MDX SH-AWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System - DTC Diagnostics (4 Of 5) (Except Hybrid) >> DTC Troubleshooting >> DTC P0976

DTC P0976

DTC P0976  : Shift Solenoid Valve B (Short)

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. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot.

  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) - Refer to: How to Troubleshoot the A/T System (2014 2015), or How to Troubleshoot the Brake Booster Pressure Monitoring System (2016 2017 2018 2019 2020), or How to Troubleshoot the Fuel and Emissions Systems(With Auto Idle Stop System) (2016), or How to Troubleshoot the Fuel and Emissions Systems

    - 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
    GHH319361Courtesy 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 - Refer to: PCM Removal and Installation (2014 2015), or PCM Removal and Installation (2016) .