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:

Fog light switch (if so equipped)
To turn the fog lights on, turn the headlight switch to the  position, then turn the fog light switch to the position. If the headlight switch is in the AUTO position and the fog light switch is moved to the ON position, both the fog lights and the headlights (including all other ...

Preparation
Special service tools The actual shape of the tools may differ from those illustrated here. Commercial service tools Clip list Descriptions for Clips Replace any clips which are damaged during removal or installation. ...

Symptom diagnosis
Push-button ignition switch does not operate Description Check that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and check each symptom. Note: The engine start function, door lock function, power distribution system, and nats-ivis/nvis ...

© 2014-2024 Copyright www.nisentra.com