Nissan Sentra Service Manual: 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 system.
- Check terminals and connectors for damage, bend and loose connection.
Is the inspection result normal? Yes >> go to 2.
No >> repair the terminal and connector.
2.Check harness continuity (short circuit)
Check the continuity between the data link connector terminals.
Is the inspection result normal? YES >> GO TO 3.
NO >> Check the harness and repair the root cause.
3.Check harness continuity (short circuit)
Check the continuity between the data link connector and the ground.
Is the inspection result normal? YES >> GO TO 4.
NO >> Check the harness and repair the root cause.
4.Check ecm and bcm termination circuit
- Remove the ecm and the bcm.
- Check the resistance between the ecm terminals.
- Check the resistance between the bcm terminals.
Is the measurement value within the specification? Yes >> go to 5.
No >> replace the ecm and/or the bcm.
5.Check symptom
Connect all the connectors. Check if the symptoms described in the “symptom (results from interview with customer)” are reproduced.
Inspection result
Reproduced>>go to 6.
Non-reproduced>>start the diagnosis again. Follow the trouble diagnosis procedure when past error is detected.
6.Check unit reproduction
Perform the reproduction test as per the following procedure for each unit.
- Turn the ignition switch off
- Disconnect the battery cable from the negative terminal.
- Disconnect one of the unit connectors of can communication system.
Note:
Ecm and bcm have a termination circuit. Check other units first.
- Connect the battery cable to the negative terminal. Check if the symptoms described in the “symptom (results from interview with customer)” are reproduced.
Note:
Although unit-related error symptoms occur, do not confuse them with other symptoms.
Inspection result
Reproduced>>connect the connector. Check other units as per the above procedure.
Non-reproduced>>replace the unit whose connector was disconnected.
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 ...
Other materials:
Basic inspection
Inspection and adjustment
Additional service when replacing control unit (bcm)
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (BCM) : Description
Before replacement
When replacing bcm, save or print current vehicle specification with consult
configuration before replacement.
Note:
If “B ...
Headlights
Replacing the halogen headlight bulb
The headlight is a semi-sealed beam type which
uses a replaceable headlight (halogen) bulb. Because
the headlight assembly must be removed
from the vehicle for bulb replacement, see your
NISSAN dealer.
CAUTION
Aiming is not necessary after replacing
t ...
Bluetooth® streaming audio with Navigation System (if so equipped)
If you have a compatible Bluetooth® audio device
that is capable of playing audio files, the
device can be connected to the vehicle’s audio
system so that the audio files on the device play
through the vehicle’s speakers.
Connecting Bluetooth® audio
To connect your Bluetooth® audio ...
