Nissan Rogue manuals

Nissan Rogue Service Manual: P2122, P2123 APP sensor

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition
P2122 APP SEN 1/CIRC (Throttle/pedal position sensor/switch ″D″ circuit low) An excessively low voltage from the APP sensor 1 is sent to ECM.
P2123 APP SEN 1/CIRC (Throttle/pedal position sensor/switch ″D″ circuit high) An excessively high voltage from the APP sensor 1 is sent to ECM.

POSSIBLE CAUSE

FAIL-SAFE

DTC CONFIRMATION PROCEDURE

1.CHECK DTC PRIORITY

If DTC P2122 or P2123 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.

Is applicable DTC detected? YES >> Perform diagnosis of applicable. Refer to EC-379, "DTC Description".

NO >> GO TO 2.

2.PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

  1.  Turn ignition switch OFF and wait at least 10 seconds.
  2.  Turn ignition switch ON.
  3.  Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION: Before performing the following procedure, confirm that battery voltage is more than 8 V at idle.

>> GO TO 3.

3.PERFORM DTC CONFIRMATION PROCEDURE

  1. Start engine and let it idle for 1 second.
  2.  Check DTC.

Is DTC detected? YES >> Proceed to EC-440, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

1.CHECK DTC PRIORITY

If DTC P2122 or P2123 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.

Is applicable DTC detected? YES >> Perform diagnosis of applicable. Refer to EC-379, "DTC Description".

NO >> GO TO 2.

2.CHECK APP SENSOR 1 POWER SUPPLY

  1.  Turn ignition switch OFF.
  2.  Disconnect accelerator pedal position (APP) sensor harness connector.
  3.  Turn ignition switch ON.
  4.  Check the voltage between APP sensor harness connector and ground.

Check APP sensor 1 power supply

Is the inspection result normal? YES >> GO TO 4.

NO >> GO TO 3.

3.CHECK APP SENSOR 1 POWER SUPPLY CIRCUIT

  1.  Turn ignition switch OFF.
  2.  Disconnect ECM harness connector.
  3.  Check the continuity between APP sensor harness connector and ECM harness connector

Check APP sensor 1 power supply circuit

  1. Also check harness for short to ground.

Is the inspection result normal? YES >> Perform the trouble diagnosis for power supply circuit.

NO >> Repair or replace error-detected parts.

4.CHECK APP SENSOR 1 GROUND CIRCUIT

  1.  Turn ignition switch OFF.
  2.  Disconnect ECM harness connector.
  3.  Check the continuity between APP sensor harness connector and ECM harness connector.

Check APP sensor 1 ground circuit

Also check harness for short to power.

Is the inspection result normal? YES >> GO TO 5.

NO >> Repair or replace error-detected parts.

5.CHECK APP SENSOR INPUT SIGNAL CIRCUIT

  1.  Check the continuity between APP sensor harness connector and ECM harness connector.

Check APP sensor input signal circuit

  1. Also check harness for short to ground and to power.
  2. Is the inspection result normal?

YES >> GO TO 6.

NO >> Repair or replace error-detected parts.

6.CHECK APP SENSOR

Check the APP sensor. Refer to EC-442, "Component Inspection".

Is the inspection result normal? YES >> GO TO 7.

NO >> Replace accelerator pedal assembly. Refer to ACC-3, "Removal and Installation".

7.CHECK INTERMITTENT INCIDENT

Refer to GI-41, "Intermittent Incident".

>> INSPECTION END

Component Inspection

1.CHECK ACCELERATOR PEDAL POSITION SENSOR

  1. Turn ignition switch OFF.
  2.  Reconnect all harness connectors disconnected.
  3.  Turn ignition switch ON.
  4.  Check the voltage between ECM harness connector terminals as per the following condition.

Check accelerator pedal position sensor

Is the inspection result normal? YES >> INSPECTION END

NO >> Replace accelerator pedal assembly. Refer to ACC-3, "Removal and Installation".

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