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 ipdm-e and dlc circuit
Diagnosis procedure 1.Check connector Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and ...

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:

Removal and installation
REAR WHEEL HUB Exploded View - Drum brake DRUM BRAKE Rear suspension beam Brake assembly Wheel stud Wheel hub assembly (Bearing-integrated type) Brake drum Removal and Installation - Drum brake REMOVAL Remove the wheel and tire using power tool. Refer to WT-47, "Remo ...

Optical sensor
Description The optical sensor measures ambient light and transmits the optical sensor signal to the bcm. Component function check 1.Check optical sensor signal by consult Consult Turn the ignition switch ON. Select opti sen of bcm (head lamp) data monitor item. Turn the lighting swit ...

NISSAN Intelligent Key® battery discharge
If the battery of the NISSAN Intelligent Key® is discharged, or environmental conditions interfere with the Intelligent Key operation, start the engine according to the following procedure: Place the shift lever in the P (Park) position. Firmly apply the foot brake. Touch the ignitio ...

© 2014-2025 Copyright www.nisentra.com