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 ipdm-e and dlc circuit
Diagnosis procedure
1.Check connector
Turn the ignition switch off.
Disconnect the battery cable from the negative terminal.
Check the following terminals and connectors for damage, bend and ...
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:
Garage Jack and Safety Stand and 2-Pole Lift
WARNING:
Park the vehicle on a level surface when using the jack. Make
sure to avoid damaging pipes, tubes,
etc. under the vehicle.
Never get under the vehicle while it is supported only by the
jack. Always use safety stands when
you have to get under the vehicle.
Place wheel chock ...
Hood
Pull the hood lock release handle 1 located
below the instrument panel until the hood
springs up slightly.
Locate the lever 2 in between the hood and
grille and push the lever sideways with your
fingertips.
Raise the hood 3 .
Remove the support rod 4 and insert it into
the slo ...
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 ...
