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:

Hood
Release the lock from the inside of the vehicle to open the hood. 1. Pull the hood lock release lever. The hood will pop up slightly. 2. Pull up the auxiliary catch lever and lift the hood. 3. Hold the hood open by inserting the support rod into the slot. ■Open hood warning buzzer ...

Changing the windshield wiper rest position/Lifting the windshield wipers
When the windshield wipers are not being used, they retract to below the hood. To enable the windshield wipers to be lifted when parking in cold conditions or when replacing a windshield wiper insert, change the rest position of the windshield wipers to the service position using the wiper lever ...

Fuel recommendation
Use unleaded regular gasoline with an octane rating of at least 87 AKI (Anti-Knock Index) number (Research octane number 91). CAUTION Only vehicles with the E-85 filler door label can operate on E-85. Fuel system or other damage can occur if E-85 is used in vehicles that are not designe ...

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