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DTC C1C21-62 (M/T) (2018 2019 2020)

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DTC C1C21-62  : Reverse Information Failure (Stuck)

NOTE: Before you troubleshoot, review the general troubleshooting information .

DTC Description DTC
C1C21-62 Reverse Information Failure (Stuck)  

DTC (VSA)

  1. DTC check

    -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. Test-drive the vehicle at 37 mph (60 km/h) or more for 3 seconds or more and stop. Shift the shift lever into reverse and test-drive the vehicle in reverse 3 times or more.

    NOTE:  Drive the vehicle on the road, not on a lift.

    -5. Check for DTCs with the HDS.

    DTC Description DTC
    C1C21-62 Reverse Information Failure (Stuck)  

    Is DTC C1C21-62 indicated?

    YES 

    The failure is duplicated. Go to step 2.

    NO 

    Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting .

  2. Back-up light switch check

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

    -2. Check the back-up light switch .

    Is the back-up light switch OK?

    YES 

    Go to step 3.

    NO 

    Replace the back-up light switch .

  3. Determine possible failure area (REVERSE SW GND/RVSSW GND line, other)

    -1. Disconnect the following connector.

    Back-up light switch 4P connector

    -2. Turn the vehicle to the ON mode.

    -3. Measure the voltage between test points 1 and 2.

    Test condition Vehicle ON mode
    Back-up light switch 4P connector: disconnected
    Test point 1 Back-up light switch 4P connector (male terminals) No. 3:
    Test point 2 Body ground
    GHH399061Courtesy of HONDA, U.S.A., INC.

    Is there more than 5 V?

    YES 

    Go to step 4.

    NO (battery voltage)

    Go to step 7.

    NO (about 0 V)

    Go to step 8.

  4. Open wire check (REVERSE SW GND/RVSSW GND line)

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

    -2. Disconnect the following connector.

    VSA modulator-control unit 46P connector

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

    Test condition Vehicle OFF (LOCK) mode
    VSA modulator-control unit 46P connector: disconnected
    Back-up light switch 4P connector: disconnected
    Test point 1 Back-up light switch 4P connector (male terminals) No. 1:
    Test point 2 VSA modulator-control unit 46P connector No. 38
    GHH399063Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    The REVERSE SW GND/RVSSW GND wire is not open. Go to step 5.

    NO 

    Repair an open in the wire between the VSA modulator-control unit and the back-up light switch.

  5. Shorted wire check (REVERSE SW GND/RVSSW GND line to ground)

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

    Test condition Vehicle OFF (LOCK) mode
    VSA modulator-control unit 46P connector: disconnected
    Back-up light switch 4P connector: disconnected
    Test point 1 VSA modulator-control unit 46P connector No. 38
    Test point 2 Body ground

    Is there continuity?

    YES 

    Repair a short to body ground in the wire between the VSA modulator-control unit and the back-up light switch.

    NO 

    The REVERSE SW GND/RVSSW GND wire is not shorted. Go to step 6.

  6. Shorted wire check (REVERSE SW GND/RVSSW GND 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
    VSA modulator-control unit 46P connector: disconnected
    Back-up light switch 4P connector: disconnected
    Test point 1 VSA modulator-control unit 46P connector No. 38
    Test point 2 Body ground

    Is there more than 0.1 V?

    YES 

    Repair a short to power in the wire between the VSA modulator-control unit and the back-up light switch.

    NO 

    Check for loose terminals and poor connections in the VSA modulator-control unit 46P connector. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting. If they are OK, replace the VSA modulator-control unit .

  7. Shorted wire check (REVERSE SW/RVSSW line to power)

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

    -2. Disconnect the following connector.

    VSA modulator-control unit 46P connector

    -3. Turn the vehicle to the ON mode.

    -4. Measure the voltage between test points 1 and 2.

    Test condition Vehicle ON mode
    VSA modulator-control unit 46P connector: disconnected
      Back-up light switch 4P connector: disconnected
    Test point 1 VSA modulator-control unit 46P connector No. 36
    Test point 2 Body ground

    Is there more than 0.1 V?

    YES 

    Repair a short to power in the wire between the VSA modulator-control unit and the back-up light switch.

    NO 

    Check for loose terminals and poor connections in the VSA modulator-control unit 46P connector. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting. If they are OK, replace the VSA modulator-control unit .

  8. Open wire check (REVERSE SW/RVSSW line)

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

    -2. Disconnect the following connector.

    VSA modulator-control unit 46P connector

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

    Test condition Vehicle OFF (LOCK) mode
    VSA modulator-control unit 46P connector: disconnected
    Back-up light switch 4P connector: disconnected
    Test point 1 Back-up light switch 4P connector (male terminals) No. 3:
    Test point 2 VSA modulator-control unit 46P connector No. 36
    GHH399065Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    The REVERSE SW/RVSSW wire is not open. Go to step 9.

    NO 

    Repair an open in the wire between the VSA modulator-control unit and the back-up light switch.

  9. Shorted wire check (REVERSE SW/RVSSW line)

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

    Test condition Vehicle OFF (LOCK) mode
    VSA modulator-control unit 46P connector: disconnected
    Back-up light switch 4P connector: disconnected
    Test point 1 VSA modulator-control unit 46P connector No. 36
    Test point 2 Body ground

    Is there continuity?

    YES 

    Repair an shorted in the wire between the VSA modulator-control unit and the back-up light switch.

    NO 

    Check for loose terminals and poor connections in the VSA modulator-control unit 46P connector. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting. If they are OK, replace the VSA modulator-control unit .

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