Nissan Sentra Service Manual: Bcm 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 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
- Disconnect the connector of bcm.
- Check the resistance between the bcm harness connector terminals.
- Without intelligent key system
- With intelligent key system
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.
- With Intelligent Key system: Refer to BCS-67, "Diagnosis Procedure".
- Without intelligent key system: refer to bcs-120, "diagnosis procedure".
Is the inspection result normal? Yes (present error)>>replace the bcm. Refer to the following.
- With intelligent key system: refer to bcs-73, "removal and installation".
- Without Intelligent Key system: Refer to BCS-126, "Removal and Installation".
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:
Hazard switch
Component function check
1.Check hazard switch signal by consult
Consult data monitor
Turn ignition switch ON.
Select hazard sw of bcm (flasher) data monitor item.
While operating the hazard switch, check the monitor status.
Is the inspection result normal?
Yes >> hazard swi ...
B14XX Air bag diagnosis sensor unit
Description
DTC B14XX AIR BAG DIAGNOSIS SENSOR UNIT
The air bag diagnosis sensor unit will run self diagnostics when the ignition
switch is turned ON. It has the
potential to set many diagnostic trouble codes which will conform to the B14XX
format, but will not match any
other SRS diagnosti ...
Rear window defogger switch
Description
The rear window defogger is operated by pressing the rear window
defogger switch ON.
The indicator lamp in the rear window defogger switch illuminates while
the rear window defogger is on.
Component function check
1. Check rear window defogger switch function
Check (Р ...
