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Home >> Honda >> 2021 >> Accord Touring >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle - DTC Diagnostics (P0501 - P0871) (Except Hybrid) >> DTC Troubleshooting >> P0697 (A/T)

P0697 (A/T)

DTC P0697  : Sensor Reference Voltage 3 Circuit Malfunction

NOTE:  Before you troubleshoot, review the General Troubleshooting Information .

DTC Description Confirmed DTC Pending DTC Freeze Frame
P0697 Sensor Reference Voltage 3 Circuit Malfunction      

DTC (A/T)

  1. Problem verification

    -1. Turn the vehicle to the ON mode.

    -2. Clear the DTC with the HDS.

    -3. Turn the vehicle to the OFF (LOCK) mode.

    -4. Turn the vehicle to the ON mode.

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

    DTC Description Confirmed DTC Pending DTC Freeze Frame
    P0697 Sensor Reference Voltage 3 Circuit Malfunction      

    Is DTC P0697 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 at the TCM. 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 (countershaft speed sensor, others)

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

    -2. Disconnect the following connector.

    Countershaft speed sensor 3P connector

    -3. Turn the vehicle to the ON mode.

    -4. Clear the DTC with the HDS.

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

    DTC Description Confirmed DTC Pending DTC Freeze Frame
    P0697 Sensor Reference Voltage 3 Circuit Malfunction      

    Is DTC P0697 indicated?

    YES 

    Go to step 3.

    NO 

    Replace the countershaft speed sensor .

  3. Shorted wire check (VCC3 line to ground)

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

    -2. Disconnect the following connector.

    TCM connector A (23P)

    -3. Check for continuity between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
      Countershaft speed sensor 3P connector: disconnected
      TCM connector A (23P): disconnected
    Test point 1 Countershaft speed sensor 3P connector (female terminals) No. 1:
    Test point 2 Body ground
    GHH389893Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    Repair a short to ground in the VCC3 wire between the countershaft speed sensor and the TCM.

    NO 

    The VCC3 wire is not shorted to ground. Go to step 4.

  4. Shorted wire check (VCC3 line to power)

    -1. Turn the vehicle to the ON mode.

    -2. Measure the voltage between test points 1 and 2.

    Test condition Vehicle ON mode
      Countershaft speed sensor 3P connector: disconnected
      TCM connector A (23P): disconnected
    Test point 1 Countershaft speed sensor 3P connector (female terminals) No. 1:
    Test point 2 Body ground
    GHH389895Courtesy of HONDA, U.S.A., INC.

    Is there 7.2 V or more?

    YES 

    Repair a short to power in the VCC3 wire between the countershaft speed sensor and the TCM.

    NO 

    The VCC3 wire is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good TCM , then recheck. If this DTC goes away and the TCM was substituted, replace the original TCM .