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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:

A-bag branch line circuit
Diagnosis procedure Warning: Always observe the following items for preventing accidental activation. Before servicing, turn ignition switch off, disconnect battery negative terminal, and wait 3 minutes or more. (To discharge backup capacitor.) Never use unspecified tester or other ...

Rear regulator
Exploded View Rear door panel Rear door glass regulator motor Rear door glass regulator Rear door glass Rear door glass rubber run Removal and Installation NOTE: RH rear door panel shown; LH side similar REMOVAL Remove the rear door finisher. Refer to INT-19, "Removal ...

P0172 Fuel injection system function
DTC Logic DTC DETECTION LOGIC With the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture ratio can be brought closely to the theoretical mixture ratio based on the mixture ratio feedback signal from the A/F sensors 1. The ECM calculates the necessary compensation to correct th ...

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