Nissan Sentra manuals

Nissan Sentra Service Manual: B142X Collision detection

Description

DTC B142X COLLISION DETECTION

The air bag diagnosis sensor unit will set this DTC if it has detected a collision which has resulted in a deployment of one or more air bags or pre-tensioners. If this DTC is detected after a SRS repair, the air bag diagnosis sensor unit has not yet been replaced. This DTC can not be erased.

PART LOCATION

Refer to SRC-5, "Component Parts Location".

DTC Logic

DTC DETECTION LOGIC

With CONSULT

DTC CONFIRMATION PROCEDURE (With CONSULT)


DTC CONFIRMATION PROCEDURE (With CONSULT)

1.INSPECTION START

Turn ignition switch ON.

>> GO TO 2.

2.CHECK SELF-DIAG RESULT

Check for the DTC on CONSULT.

Is the DTC detected? YES >> Refer to SRC-98, "Diagnosis Procedure".

NO >> Inspection End.

Diagnosis Procedure

Refer to SR-5, "For Frontal Collision" or SR-7, "For Side and Rollover Collision".

B142A Ignition voltage
Description DTC B142A IGNITION VOLTAGE Ignition voltage is supplied to the air bag diagnosis sensor unit when the ignition is in the ON position. The air bag diagnosis sensor unit will monitor f ...

B14XX Air bag diagnosis sensor unit
Description DTC B14XX AIR BAG DIAGNOSIS SENSOR UNIT The air bag diagnosis sensor unit will run self diagnostics when the ignition switch is turned ON. It has the potential to set many diagnostic ...

Other materials:

Basic inspection
Diagnosis and repair workflow Work Flow OVERALL SEQUENCE DETAILED FLOW 1. OBTAIN INFORMATION ABOUT SYMPTOM Interview the customer to obtain as much information as possible about the conditions and environment under which the malfunction occurred. >> GO TO 2. 2. CONFIRM THE SYMPTO ...

The steering switch (meter control switch) is inoperative
Description If any of the following malfunctions is found for the steering switch (meter control switch) operation. All switches are inoperative The specified switch cannot be operated Diagnosis procedure 1.Check steering switch signal circuit Check the steering switch signal circuit. ...

Environmental factors influence the rate of corrosion
Moisture Accumulation of sand, dirt and water on the vehicle body underside can accelerate corrosion. Wet floor coverings will not dry completely inside the vehicle and should be removed for drying to avoid floor panel corrosion. Relative humidity Corrosion will be accelerated in areas of h ...

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