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DTC P2126

WARNING: This page is about a different variant/trim than selected.

DTC P2126  : APP Sensor B (TP Sensor E) Out of Range

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

DTC Description Confirmed DTC Pending DTC
P2126 APP Sensor B (TP Sensor E) Out of Range    

DTC (PGM-FI)

  1. Problem verification 1

    -1. Turn the vehicle to the ON mode.

    -2. Check the parameter(s) below with the HDS.

    Signal Threshold Current conditions
    Values Unit Values Unit
    APP Sensor B Voltage Less than 0.23 V    

    Do the current condition(s) match the threshold?

    YES 

    The failure is duplicated. Go to step 3.

    NO 

    Go to step 2.

  2. Problem verification 2

    -1. Check the parameter(s) below with the HDS.

    Signal Threshold Current conditions
    Values Unit Values Unit
    APP Sensor B Voltage More than 2.66 V    

    Do the current condition(s) match the threshold?

    YES 

    The failure is duplicated. Go to step 8.

    NO 

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

  3. Determine possible failure area (VCC5 line, others)

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

    -2. Disconnect the following connector.

    APP sensor 6P connector

    -3. Turn the vehicle to the ON mode.

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

    Test condition Vehicle ON mode
      APP sensor 6P connector: disconnected
    Test point 1 APP sensor 6P connector (female terminals) No. 1:
    Test point 2 APP sensor 6P connector (female terminals) No. 2:
    GHH377890Courtesy of HONDA, U.S.A., INC.

    Is there about 5.0 V?

    YES 

    Go to step 4.

    NO 

    Go to step 7.

  4. Shorted wire check (APS2 line)

    -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 A (50P)

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

    Test condition Vehicle OFF (LOCK) mode
      APP sensor 6P connector: disconnected
      PCM connector A (50P): disconnected
    Test point 1 APP sensor 6P connector (female terminals) No. 3:
    Test point 2 Body ground
    GHH377892Courtesy of HONDA, U.S.A., INC.

    Is there 1 MΩ or more?

    YES 

    Go to step 5.

    NO 

    Repair a short in the APS2 wire between the PCM (A34) and the APP sensor.

  5. Open wire check (APS2 line)

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

    Terminal A APP sensor 6P connector (female terminals) No. 3:
    Terminal B Body ground
    GHH377894Courtesy of HONDA, U.S.A., INC.

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

    Test condition Vehicle OFF (LOCK) mode
      APP sensor 6P connector: disconnected
      PCM connector A (50P): disconnected
      APP sensor 6P connector No. 3: jumped to body ground
    Test point 1 PCM connector A (50P) No. 34
    Test point 2 Body ground

    Is there 1.0 Ω or less?

    YES 

    Go to step 6.

    NO 

    Repair an open in the APS2 wire between the PCM (A34) and the APP sensor.

  6. PCM internal circuit check

    -1. Remove the jumper wire from the APP sensor 6P connector.

    -2. Reconnect the following connector.

    PCM connector A (50P)

    -3. Connect terminals A and B with a jumper wire.

    Terminal A APP sensor 6P connector (female terminals) No. 1:
    Terminal B APP sensor 6P connector (female terminals) No. 3:
    GHH377897Courtesy of HONDA, U.S.A., INC.

    -4. Exit the SCS mode with the HDS.

    -5. Turn the vehicle to the ON mode.

    -6. Check the parameter(s) below with the HDS.

    Signal Threshold Current conditions
    Values Unit Values Unit
    APP Sensor B Voltage Less than 0.23 V    

    Do the current condition(s) match the threshold?

    YES 

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

    NO 

    Replace the accelerator pedal module .

  7. Open wire check (VCC5 line)

    -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 A (50P)

    -4. Connect terminals A and B with a jumper wire.

    Terminal A APP sensor 6P connector (female terminals) No. 1:
    Terminal B Body ground
    GHH377899Courtesy of HONDA, U.S.A., INC.

    -5. Measure the resistance between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
      APP sensor 6P connector: disconnected
      PCM connector A (50P): disconnected
      APP sensor 6P connector No. 1: jumped to body ground
    Test point 1 PCM connector A (50P) No. 44
    Test point 2 Body ground

    Is there 1.0 Ω or less?

    YES 

    The VCC5 wire is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good PCM .

    NO 

    Repair an open in the VCC5 wire between the PCM (A44) and the APP sensor.

  8. Determine possible failure area (APP sensor, others)

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

    -2. Disconnect the following connector.

    APP sensor 6P connector

    -3. Turn the vehicle to the ON mode.

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

    Test condition Vehicle ON mode
      APP sensor 6P connector: disconnected
    Test point 1 APP sensor 6P connector (female terminals) No. 1:
    Test point 2 APP sensor 6P connector (female terminals) No. 2:
    GHH377902Courtesy of HONDA, U.S.A., INC.

    Is there about 5.0 V?

    YES 

    Replace the accelerator pedal module .

    NO 

    Go to step 9.

  9. Open wire check (SG5 line)

    -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 A (50P)

    -4. Connect terminals A and B with a jumper wire.

    Terminal A APP sensor 6P connector (female terminals) No. 2:
    Terminal B Body ground
    GHH377904Courtesy of HONDA, U.S.A., INC.

    -5. Measure the resistance between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
      APP sensor 6P connector: disconnected
      PCM connector A (50P): disconnected
      APP sensor 6P connector No. 2: jumped to body ground
    Test point 1 PCM connector A (50P) No. 43
    Test point 2 Body ground

    Is there 1.0 Ω or less?

    YES 

    The SG5 wire is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good PCM .

    NO 

    Repair an open in the SG5 wire between the PCM (A43) and the APP sensor.

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