Nissan Sentra manuals

Nissan Sentra Service Manual: Ecm 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 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

  1. Disconnect the connector of ECM.
  2. Check the resistance between the ecm harness connector terminals.

Is the measurement value within the specification?


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
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Other materials:

Telescopic operation
Pull the lock lever down 1 and adjust the steering wheel forward or backward 3 to the desired position. Push the lock lever up 1 firmly to lock the steering wheel in place. WARNINGDo not adjust the steering wheel any closer to you than is necessary for proper steering operation a ...

Handling precautions for plastics
Precautions for plastics When repairing and painting a portion of the body adjacent to plastic parts, consider their characteristics (influence of heat and solvent) and remove them if necessary or take suitable measures to protect them. Plastic parts should be repaired and painted ...

Rear disc brake
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