Nissan Sentra manuals

Nissan Sentra Service Manual: Sensor power supply 2 circuit

Description

ECM supplies a voltage of 5.0 V to some of the sensors systematically divided into 2 groups, respectively.

Accordingly, when a short circuit develops in a sensor power source, a malfunction may occur simultaneously in the sensors belonging to the same group as the shorted-circuit sensor.

Sensor power supply 1

NOTE:

If sensor power supply 1 circuit is malfunctioning, DTC P0643 is displayed.

Sensor power supply 2

Diagnosis Procedure

1.CHECK ACCELERATOR PEDAL POSITION SENSOR 2 POWER SUPPLY CIRCUIT-1

  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.

Is the inspection result normal?


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

NO >> GO TO 2.

2.CHECK ACCELERATOR PEDAL POSITION SENSOR 2 POWER SUPPLY CIRCUIT-2

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

CVT models

Is the inspection result normal?


Is the inspection result normal? YES >> GO TO 3.

NO >> Repair or replace error-detected parts.

3.CHECK SENSOR POWER SUPPLY CIRCUITS

Check harness for short to power and short to ground, between the following terminals.

Is the inspection result normal?


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

NO >> Repair or replace error-detected parts.

4.CHECK COMPONENTS

Check the following.

Is the inspection result normal?


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

NO >> Repair or replace malfunctioning component.

5.CHECK APP SENSOR

Check APP sensor. Refer to EC-436, "Component Inspection (APP Sensor)".

Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".

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

P2138 APP Sensor
DTC Logic DTC DETECTION LOGIC NOTE: If DTC P2138 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. Refer to EC-353, "DTC Logic". DTC No. CONSUL ...

Brake pedal position switch
Component Function Check 1.CHECK BRAKE PEDAL POSITION SWITCH FUNCTION With CONSULT Turn ignition switch ON. Select “ENGINE” using CONSULT. Select “BRAKE SW1” in “DA ...

Other materials:

Trunk lid
Trunk lid assembly Trunk lid assembly : exploded view Trunk lid hinge LH/RH Torsion bar LH/RH Torsion bar clips Trunk lid finisher (if equipped) Emergency release handle Emergency release handle clip Emergency release handle cable Trunk lid lock Trunk lid bumpers License lam ...

Basic inspection
Work Procedure 1.INSPECTION START Check service records for any recent repairs that may indicate a related malfunction, or a current need for scheduled maintenance. Open engine hood and check the following: Harness connectors for improper connections Wiring harness for improper c ...

Cup holders
CAUTION Avoid abrupt starting and braking when the cup holder is being used to prevent spilling the drink. If the liquid is hot, it can scald you or your passenger. Use only soft cups in the cup holder. Hard objects can injure you in an accident. Do not use bottle holder for any ...

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