Nissan Sentra manuals

Nissan Sentra Service Manual: Bcm 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 BCM 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 bcm.
  2. Check the resistance between the bcm harness connector terminals.


Is the measurement value within the specification?


Is the measurement value within the specification? YES >> GO TO 3.

NO >> Repair the BCM branch line.

3.Check power supply and ground circuit

Check the power supply and the ground circuit of the BCM. Refer to the following.

Is the inspection result normal? Yes (present error)>>replace the bcm. Refer to the following.

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

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

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Other materials:

Brake and clutch (if so equipped) fluid
For further brake and clutch fluid specification information, refer to “Recommended fluids/lubricants and capacities” in the “Technical and consumer information” section of this manual. WARNING Use only new fluid from a sealed container. Old, inferior or contaminated ...

Symptom diagnosis
Audio system Symptom table Related to audio Related to hands-free phone Before performing diagnosis, confirm that the cellular phone being used by the customer is compatible with the vehicle. It is possible that a malfunction is occurring due to a version change of the phone ...

Slide front armrest (if so equipped)
To adjust the front armrest, take the leather cover and slide it to the front or rear. ...

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