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Home >> Acura >> 2018 >> RLX Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTC Diagnostics (2 Of 6) (Except Hybrid) >> DTC Troubleshooting >> DTC P0335

DTC P0335

DTC P0335  : CKP Sensor No Signal

NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information .
DTC Description Confirmed DTC Pending DTC Freeze Frame
P0335 CKP Sensor No Signal      

DTC (PGM-FI)

  1. Problem verification

    -1. Turn the vehicle to the ON mode.

    -2. Clear the DTC with the HDS.

    -3. Start the engine.

    -4. Check for Pending or Confirmed DTCs with the HDS.

    DTC Description Confirmed DTC Pending DTC Freeze Frame
    P0335 CKP Sensor No Signal      

    Is DTC P0335 indicated?

    YES 

    The failure is duplicated. Go to step 2.

    NO 

    Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the CKP sensor and the PCM.

  2. Open wire check (IGP/FI MAIN RLY OUT line)

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

    -2. Disconnect the following connector.

    CKP sensor 3P connector

    -3. Turn the vehicle to the ON mode.

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

    Test condition Vehicle ON mode
      CKP sensor 3P connector: disconnected
    Test circuit IGP
    Test point 1 CKP sensor 3P connector No. 1 (YEL)
    Test point 2 Body ground
    GHH344746Courtesy of HONDA, U.S.A., INC.

    Is there battery voltage?

    YES 

    The IGP/FI MAIN RLY OUT wire is OK. Go to step 3.

    NO 

    Repair an open in the IGP/FI MAIN RLY OUT wire between the CKP sensor and PGM-FI main relay 1, then do the repair verification.

  3. Determine possible failure area (CRK line, CRK LG/LG line)

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

    Test condition Vehicle ON mode
      CKP sensor 3P connector: disconnected
    Test circuit CRK
    Test point 1 CKP sensor 3P connector No. 3 (BLU)
    Test point 2 Body ground
    GHH344747Courtesy of HONDA, U.S.A., INC.

    Is there about 5.0 V?

    YES 

    Go to step 4.

    NO 

    Go to step 5.

  4. Open wire check (CRK LG/LG line)

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

    Test condition Vehicle ON mode
      CKP sensor 3P connector: disconnected
    Test circuit IGP, CRK LG
    Test point 1 CKP sensor 3P connector No. 1 (YEL)
    Test point 2 CKP sensor 3P connector No. 2 (BRN)
    GHH344748Courtesy of HONDA, U.S.A., INC.

    Is there battery voltage?

    YES 

    The CRK LG/LG wire is OK. Replace the CKP sensor , then do the repair verification.

    NO 

    Repair an open in the CRK LG/LG wire between the CKP sensor and G101, then do the repair verification.

  5. Shorted wire check (CRK 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 C (51P)

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

    Test condition Vehicle OFF (LOCK) mode
      CKP sensor 3P connector: disconnected
      PCM connector C (51P): disconnected
    Test circuit CRK
    Test point 1 PCM connector C (51P) No. 11 (BLU)
    Test point 2 Body ground
    GHH344749Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    Repair a short in the CRK wire between the PCM (C11) and the CKP sensor, then do the repair verification.

    NO 

    The CRK wire is not shorted. Go to step 6.

  6. Open wire check (CRK line)

    -1. Connect terminals A and B with a jumper wire.

    Terminal A CKP sensor 3P connector No. 3 (BLU)
    Terminal B Body ground
    GHH344750Courtesy of HONDA, U.S.A., INC.

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

    Test condition Vehicle OFF (LOCK) mode
      CKP sensor 3P connector: disconnected
      CKP sensor 3P connector No. 3: jumped to body ground
      PCM connector C (51P): disconnected
    Test circuit CRK
    Test point 1 PCM connector C (51P) No. 11 (BLU)
    Test point 2 Body ground
    GHH344751Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    The CRK wire is OK. Update the PCM if it does not have the latest software, or substitute a known-good PCM , then do the repair verification.

    NO 

    Repair an open in the CRK wire between the PCM (C11) and the CKP sensor, then do the repair verification.

  7. Repair verification

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

    -2. Reconnect all connectors.

    -3. Exit the SCS mode with the HDS.

    -4. Turn the vehicle to the ON mode.

    -5. Reset the PCM with the HDS .

    Reset PCM

    -6. Do the CKP pattern clear procedure .

    CRANK PATTERN CLEAR

    Do the PCM idle learn procedure .

    -8. Do the CKP pattern learn procedure .

    CRANK PATTERN LEARNING

    Check for Pending or Confirmed DTCs with the HDS.

    DTC Description Confirmed DTC Pending DTC Freeze Frame
    P0335 CKP Sensor No Signal      

    DTC (PGM-FI)

    Is DTC P0335 indicated?

    YES 

    Check for poor connections or loose terminals at the CKP sensor and the PCM. If the PCM was updated, substitute a known-good PCM , then recheck. If the PCM was substituted, go to step 1.

    NO 

    Troubleshooting is complete. If the PCM was substituted, replace the original PCM . If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.