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 ...
Other materials:
Precaution
Precaution for supplemental restraint system (srs) "air bag" and "seat
belt pre-tensioner"
The supplemental restraint system such as “air bag” and “seat belt pre-tensioner”,
used along
with a front seat belt, helps to reduce the risk or severity of injur ...
C1607, C1608 EPS Control unit
DTC Logic
DTC DETECTION LOGIC
Dtc
Display item
Malfunction detected condition
Possible cause
C1607
EEPROM
When the memory (EEPROM) system malfunction is
detected in EPS control unit.
Eps control unit
C1608
CONTROL UNIT
When the internal malfuncti ...
Symptom diagnosis
Audio 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 phone ...