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Nissan Sentra Service Manual: On Board Diagnostic (OBD) System of Engine and CVT

Nissan Sentra Service Manual / Engine / Engine control system / Precaution / On Board Diagnostic (OBD) System of Engine and CVT

The ECM has an on board diagnostic system. It will light up the malfunction indicator lamp (MIL) to warn the driver of a malfunction causing emission deterioration.

CAUTION:

Precaution for Procedure without Cowl Top Cove.r.
When performing the procedure after removing cowl top cover, cover the lower end of windshield with urethane, etc to prevent damage to windshield. ...

General Precautions
Always use a 12 volt battery as power source. Do not attempt to disconnect battery cables while engine is running. Before connecting or disconnecting the ECM harness connector, turn ignitio ...

Other materials:

C1164, C1165, C1166, C1167 CV/SV System
DTC Logic Dtc detection logic DTC Display Item Malfunction detected condition Possible causes C1164 CV 1 When a malfunction is detected in cut valve 1. Harness or connector ABS actuator and electric unit (control unit) Fusible link Battery ...

Diagnosis system (EPS control unit)
CONSULT Function FUNCTION CONSULT can display each diagnostic item using the diagnostic test modes shown following. Diagnostic test mode Function ECU identification The part number stored in the control unit can be read. Self diagnostic result Self-diagnostic r ...

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 connectors. Ecm A/C auto amp. Check the continuity between the data link connector and the A/C ...

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