Nissan Sentra manuals

Nissan Sentra Service Manual: Dlc 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 data link connector for damage, bend and loose connection (connector side and harness side).

Is the inspection result normal? Yes >> go to 2.

No >> repair the terminal and connector.

2.Check harness for open circuit

Check the resistance between the data link connector terminals.

Is the measurement value within the specification?


Is the measurement value within the specification? Yes (present error)>>check can system type decision again.

Yes (past error)>>error was detected in the data link connector branch line circuit.

No >> repair the data link connector branch line.

A-bag branch line circuit
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Other materials:

Basic inspection
Diagnosis and repair workflow Work flow OVERALL SEQUENCE DETAILED FLOW 1.GET INFORMATION FOR SYMPTOM Get detailed information from the customer about the symptom (the condition and the environment when the incident/malfunction occurred). >> GO TO 2 2.CONFIRM THE SYMPTOM Try to ...

General Precautions
Do not operate the engine for an extended period of time without proper exhaust ventilation. Keep the work area well ventilated and free of any inflammable materials. Special care should be taken when handling any inflammable or poisonous materials, such as gasoline, refrigerant gas, etc. Wh ...

DTC/circuit diagnosis
U1000 CAN COMM CIRCUIT Description Refer to lan-7, "can communication system : system description". Dtc logic Dtc detection logic Note: U1000 can be set if a module harness was disconnected and reconnected, perhaps during a repair. Confirm that there are actual CAN diagnostic symp ...

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