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DTC P2122:00

DTC P2122:00  APP sensor No. 1 circuit low input 
DETECTION CONDITION 
  • The PCM monitors the input voltage from APP sensor No. 1 when the engine is running. If the input voltage is less than 0.2 V  , the PCM determines that the APP sensor No. 1 circuit input voltage is low.

Diagnostic support note 
  • This is a continuous monitor (CCM).
  • The MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
  • FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
  • The DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • APP sensor connector or terminals malfunction
  • Short to ground in wiring harness between the following terminals:
    • APP sensor terminal F-PCM terminal 1AE
    • APP sensor terminal E-PCM terminal 1AP
  • PCM connector or terminals malfunction
  • Open circuit in wiring harness between the following terminals:
    • APP sensor terminal F-PCM terminal 1AE
    • APP sensor terminal E-PCM terminal 1AP
  • APP sensor No. 1 malfunction
  • PCM malfunction
G07864547
DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA (MODE 2)/SNAPSHOT DATA HAS BEEN RECORDED 
  • Has the FREEZE FRAME DATA (Mode 2)/snapshot data been recorded?
 Yes Go to the next step.
No Record the FREEZE FRAME DATA (Mode 2)/snapshot data on the repair order, then go to the next step.
2 VERIFY RELATED REPAIR INFORMATION AVAILABILITY 
  • Verify related Service Bulletins and/or on-line repair information availability.
  • Is any related repair information available?
 Yes Perform repair or diagnosis according to the available repair information.
  • If the vehicle is not repaired, go to the next step.
No Go to the next step.
3 INSPECT APP SENSOR CONNECTOR CONDITION 
  • Switch the ignition to off.
  • Disconnect the APP sensor connector.
  • Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
  • Is there any malfunction?
 Yes Repair or replace the terminal and/or connector, then go to Step 8.
No Go to the next step.
4 INSPECT APP SENSOR NO. 1 CIRCUIT FOR SHORT TO GROUND 
  • APP sensor connector is disconnected.
  • Inspect for continuity between the following terminals (wiring harness-side) and body ground:
    • APP sensor terminal F
    • APP sensor terminal E
  • Is there continuity?
 Yes If the short to ground circuit could be detected:
  • Repair or replace the wiring harness for a possible short to ground.

If the short to ground circuit could not be detected:

Go to Step 8.
No Go to the next step.
5 INSPECT PCM CONNECTOR CONDITION 
  • Disconnect the PCM connector.
  • Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
  • Is there any malfunction?
 Yes Repair or replace the terminal and/or connector, then go to Step 8.
No Go to the next step.
6 INSPECT APP SENSOR NO. 1 CIRCUIT FOR OPEN CIRCUIT 
  • APP sensor and PCM connectors are disconnected.
  • Inspect for continuity between the following terminals (wiring harness-side):
    • APP sensor terminal F-PCM terminal 1AE
    • APP sensor terminal E-PCM terminal 1AP
  • Is there continuity?
 Yes Go to the next step.
No Repair or replace the wiring harness for a possible open circuit, then go to Step 8.
7 INSPECT APP SENSOR NO. 1 
 Yes Replace the APP sensor, then go to the next step.
(See ACCELERATOR PEDAL REMOVAL/INSTALLATION ).
No Go to the next step.
8 VERIFY DTC TROUBLESHOOTING COMPLETED 
  • Make sure to reconnect all disconnected connectors.
  • Clear the DTC from the PCM memory using the M-MDS.

    (See AFTER REPAIR PROCEDURE ).

  • Perform the KOEO or KOER self test.

    (See KOEO/KOER SELF TEST ).

  • Is the same DTC present?
 Yes Repeat the inspection from Step 1.

Go to the next step.
No Go to the next step.
9 VERIFY AFTER REPAIR PROCEDURE 
 Yes Go to the applicable DTC inspection.
(See DTC TABLE ).
No DTC troubleshooting completed.
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