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.
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 ...
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Symptom diagnosis
Multi av 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 ph ...
Changing engine oil filter
Park the vehicle on a level surface and apply
the parking brake.
Turn the engine off.
Place a large drain pan under the oil filter C .
Loosen the oil filter with an oil filter wrench
by turning it counterclockwise. Then remove
the oil filter by turning it by hand.
CAUTION
Be c ...
U1117 Lost communication (ABS)
DTC Logic
DTC DETECTION LOGIC
DTC
CONSULT screen terms
[Trouble diagnosis content]
DTC detection condition
Possible causes
U1117
LOST COMM (ABS)
[Lost Communication With
ABS]
When the ignition switch is ON, TCM is unable
to receive the CAN communications ...
