Nissan Sentra Service Manual: Eps 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 eps control unit 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 eps control unit.
- Check the resistance between the EPS control unit harness connector terminals.
Is the measurement value within the specification? Yes >> go to 3.
No >> repair the eps control unit branch line.
3.Check power supply and ground circuit
Check the power supply and the ground circuit of the EPS control unit. Refer to STC-22, "Diagnosis Procedure".
Is the inspection result normal? YES (Present error)>>Replace the EPS control unit. Refer to STC-39, "Removal and Installation".
YES (Past error)>>Error was detected in the EPS control unit branch line.
NO >> Repair the power supply and the ground circuit.
Dlc 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 data link connector for ...
M&a 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 combination meter for da ...
Other materials:
General maintenance
During the normal day-to-day operation of the
vehicle, general maintenance should be performed
regularly as prescribed in this section. If
you detect any unusual sounds, vibrations or
smells, be sure to check for the cause or have a
NISSAN dealer do it promptly. In addition, you
should notify ...
Diagnosis description : malfunction indicator lamp (MIL)
When emission-related ECU detects a malfunction in the emission
control systems components and/or the powertrain control components
(which affect vehicle emissions), it turns on/blinks MIL to
inform the driver that a malfunction has been detected.
The MIL illuminates when ignition switch is t ...
Basic inspection
Work Procedure
1.INSPECTION START
Check service records for any recent repairs that may indicate a related
malfunction, or a current need for
scheduled maintenance.
Open engine hood and check the following:
Harness connectors for improper connections
Wiring harness for improper c ...
