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:

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 Disassembly and Assembly DISASSEMBLY WARNING: Do not touch bulb whil ...

Exterior rear
Trunk lid High mount stop light Replacing bulbs Rear window defroster switch Child safety rear door lock Fuel-filler door , Fuel-filler cap,fuel recommendation Rearview camera (if so equipped) Exterior trunk lid release, Interior trunk lid release (if so equipped) See the pag ...

Component parts
STARTING SYSTEM (WITH INTELLIGENT KEY) Component Parts Location Starter motor Transmission range switch (CVT Models) IPDM E/R (view with air inlet duct removed) Clutch interlock switch (M/T Models) ECM BCM (view under instrument panel, left side of vehicle) Component Descri ...

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