Nissan Sentra Service Manual: Ecm 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 ECM 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 ecm.
- Check the resistance between the ecm harness connector terminals.
Is the measurement value within the specification? Yes >> go to 3.
No >> repair the ecm branch line.
3.Check power supply and ground circuit
Check the power supply and the ground circuit of the ecm. Refer to ec-164, "diagnosis procedure".
Is the inspection result normal? Yes (present error)>>replace the ecm. Refer to ec-485, "removal and installation".
Yes (past error)>>error was detected in the ecm branch line.
No >> repair the power supply and the ground circuit.
Main line between dlc and hvac circuit
Diagnosis procedure
1.Check harness continuity (open circuit)
Turn the ignition switch off.
Disconnect the battery cable from the negative terminal.
Disconnect the following harness connector ...
Abs 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 abs actuator and electri ...
Other materials:
Door sash tape
Exploded view
Front door sash upper tape
Front door assembly
Rear door assembly
Front door sash rear tape
Rear door sash front tape
Rear door sash rear tape
Rear door sash upper tape
Front door sash tape
FRONT DOOR SASH TAPE : Removal and Installation
REMOVAL
Heat door sash ...
How to use this manual
How to use this section
Information
“Can” of lan section describes information peculiar to a vehicle and
inspection procedures.
For trouble diagnosis procedure, refer to lan-16, "trouble diagnosis
flow chart" of “can fundamental”.
Abbreviation list
Unit ...
Dtc/circuit diagnosis
U1000 can comm circuit
DTC Logic
DTC DETECTION LOGIC
CONSULT Display
DTC Detection Condition
Possible Cause
CAN COMM CIRCUIT
[U1000]
AV control unit is not transmitting or receiving
CAN communication signal for 2 seconds or
more.
CAN communication system.
...
