Nissan Sentra manuals

Nissan Sentra Service Manual: Ecm branch line circuit

Diagnosis Procedure

1.Check connector

  1. Turn the ignition switch off.
  2. Disconnect the battery cable from the negative terminal.
  3. Check the terminals and connectors of the ECM for damage, bend and loose connection (unit side and connector side).

Is the inspection result normal? YES >> GO TO 2.

NO >> Repair the terminal and connector.

2.Check harness for open circuit

  1. Disconnect the connector of ECM.
  2. Check the resistance between the ecm harness connector terminals.

Is the measurement value within the specification?


Is the measurement value within the specification? Yes >> go to 3.

No >> repair the ecm branch line.

3.Check power supply and ground circuit

Check the power supply and the ground circuit of the ecm. Refer to ec-164, "diagnosis procedure".

Is the inspection result normal? Yes (present error)>>replace the ecm. Refer to ec-485, "removal and installation".

Yes (past error)>>error was detected in the ecm branch line.

No >> repair the power supply and the ground circuit.

Main line between dlc and hvac circuit
Diagnosis Procedure 1.Check harness continuity (open circuit) Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Disconnect the following harness connector ...

Abs branch line circuit
Diagnosis procedure 1.CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the ABS actuator and electri ...

Other materials:

System
Warning chime system Warning chime system : system diagram Warning chime system : system description Description The buzzer for warning chime system is installed in the combination meter. The buzzer sounds when the combination meter receives a buzzer output signal from the bcm. Th ...

Diagnosis system (combination meter)
Description COMBINATION METER SELF-DIAGNOSIS MODE The information display, speedometer and tachometer can be checked in self-diagnosis mode. STARTING COMBINATION METER SELF-DIAGNOSIS MODE NOTE: Check combination meter power supply and ground circuits if self-diagnosis mode does not star ...

Rear combination lamp
Exploded view Rear combination lamp Rear turn signal lamp bulb Rear turn signal lamp socket LED lamp harness connector Rear combination lamp harness connector Back-up lamp bulb socket Back-up lamp bulb Removal and installation Removal Partially remove trunk side finis ...

В© 2014-2025 Copyright www.nisentra.com