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.

Strg 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 steering angle sensor for ...

Can communication circuit
Diagnosis procedure 1.Connector inspection Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Disconnect all the unit connectors on can communication syste ...

Other materials:

Precaution for Harness Repair
Solder the repair part, and wrap it with tape. [Twisted wire fray must be 110 mm (4.33 in) or less.] Do not bypass the repair point with wire. (If it is bypassed, the turnout point cannot be separated and the twisted wire characteristics are lost.) ...

Power steering
WARNING If the engine is not running or is turned off while driving, the power assist for the steering will not work. Steering will be harder to operate. When the power steering warning light illuminates with the engine running, there will be no power assist for th ...

Component parts
Component parts location BCM (view with instrument panel removed) Key switch (without Intelligent Key) Push-button ignition switch (with Intelligent Key) IPDM E/R Illumination control switch Combination switch (lighting and turn signal switch) Front door lock LH (key cylin ...

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