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Home >> Honda >> 2021 >> CR-V EX-L, AWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System - DTC Diagnostics (P16E8 - P24BA) (Except Hybrid) >> DTC Troubleshooting >> DTC P2135 (1.5 L Engine)

DTC P2135 (1.5 L Engine)

DTC P2135  : TP Sensor A/B Incorrect Voltage Correlation

WARNING:

Do not insert your fingers into the installed throttle body when you turn the vehicle to the ON mode, or while the vehicle is in ON mode. If you do, you will seriously injure your fingers if the throttle valve is activated.

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

DTC Description Confirmed DTC Pending DTC
P2135 TP Sensor A/B Incorrect Voltage Correlation    

DTC (PGM-FI)

  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. Select the ETCS TEST in the INSPECTION MENU with the HDS.

    ETCS TEST

    Check for Pending or Confirmed DTCs with the HDS.

    DTC Description Confirmed DTC Pending DTC
    P2135 TP Sensor A/B Incorrect Voltage Correlation    

    Is DTC P2135 indicated?

    YES 

    Go to step 2.

    NO 

    Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the throttle body and the PCM. If the on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the on-board snapshot .

  2. Throttle body operation check

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

    -2. Disconnect the throttle body duct from the throttle body .

    -3. Turn the vehicle to the ON mode.

    -4. Clear the DTC with the HDS.

    -5. Turn the vehicle to the OFF (LOCK) mode.

    -6. Turn the vehicle to the ON mode.

    -7. Visually check the throttle valve operation.

    Does the valve temporarily move to its fully closed position?

    YES 

    Replace the throttle body .

    NO 

    Go to step 3.

  3. Determine possible failure area (PCM, others)

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

    -2. Jump the SCS line with the HDS, and wait more than 1 minute.

    -3. Disconnect the following connector.

    PCM connector E (80P)

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

    Test condition Vehicle OFF (LOCK) mode
      PCM connector E (80P): disconnected
    Test point 1 PCM connector E (80P) No. 50
    Test point 2 PCM connector E (80P) No. 51

    Is there continuity?

    YES 

    Go to step 4.

    NO 

    Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good PCM .

  4. Shorted wire check (THL1 line to THL2 line)

    -1. Disconnect the following connector.

    Throttle body 6P connector

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

    Test condition Vehicle OFF (LOCK) mode
      PCM connector E (80P): disconnected
      Throttle body 6P connector: disconnected
    Test point 1 PCM connector E (80P) No. 50
    Test point 2 PCM connector E (80P) No. 51

    Is there continuity?

    YES 

    Repair a short in the THL1 wire to the THL2 wire between the PCM connector terminals E50 (THL1 line) and E51 (THL2 line).

    NO 

    The THL1 wire and the THL2 wire are OK. Replace the throttle body .