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.

Hvac 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 a/c auto amp. For damage, ...

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:

Front coil spring and strut
Exploded View Piston rod lock nut Strut mount insulator Strut mount bearing Bound bumper Coil spring Lower rubber seat Strut Steering knuckle Front Removal and Installation REMOVAL Remove the wheel and tire using power tool. Refer to WT-47, "Exploded View&quo ...

Diagnosis description : malfunction indicator lamp (MIL)
When emission-related ECU detects a malfunction in the emission control systems components and/or the powertrain control components (which affect vehicle emissions), it turns on/blinks MIL to inform the driver that a malfunction has been detected. The MIL illuminates when ignition switch is t ...

Front fog lamp circuit
Description The ipdm e/r (intelligent power distribution module engine room) controls the front fog lamp relay based on inputs from the bcm over the can communication lines. When the front fog lamp relay is energized, power flows from the front fog lamp relay in the ipdm e/r to the front fog ...

В© 2014-2026 Copyright www.nisentra.com