Nissan Sentra manuals

Nissan Sentra Service Manual: EPS branch line circuit

Diagnosis procedure

1.Check connector

  1. Turn the ignition switch off.
  2. Disconnect the battery cable from the negative terminal.
  3. 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

  1. Disconnect the connector of EPS control unit.
  2. Check the resistance between the eps control unit harness connector terminals.

Is the measurement value within the specification?


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

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Other materials:

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Precautions on seat belt usage
If you are wearing your seat belt properly adjusted and you are sitting upright and well back in your seat with both feet on the floor, your chances of being injured or killed in an accident and/or the severity of injury may be greatly reduced. NISSAN strongly encourages you and all of yo ...

Replacement operations
Description This section is prepared for technicians who have attained a high level of skill and experience in repairing collision- damaged vehicles and also use modern service tools and equipment. Persons unfamiliar with body repair techniques should not attempt to repair collision-damaged v ...

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