Nissan Sentra Service Manual: Service

Nissan Sentra Service Manual / Restraints / SRS airbag control system / Precaution / Service

Never use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
Before servicing the SRS, turn power switch OFF, disconnect battery negative terminal and wait 3 minutes or more.
For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pretensioner to deploy. Therefore, never work on any SRS connectors or wires until at least 3 minutes have passed.
Diagnosis sensor unit must always be installed with their arrow marks вЂњ⇐вЂќ pointing towards the front of the vehicle for proper operation. Also check diagnosis sensor unit for cracks, deformities or rust before installation and replace as required.
The spiral cable must be aligned with the neutral position since its rotations are limited. Never turn steering wheel and column after removal of steering gear.
Handle air bag module carefully. Always place driver and front passenger air bag modules with the pad side facing upward and seat mounted front side air bag module standing with the stud bolt side facing down.
Conduct self-diagnosis to check entire SRS for proper function after replacing any components.
After air bag inflates, the front instrument panel assembly should be replaced if damaged.
Always replace instrument panel pad following front passenger air bag deployment.
Never solder the harness when making repairs. Check that harness is not pinched and that there is no contact with other components
Never allow harness to come in contact with oil, grease, waste oil, or water.
Never insert foreign materials, such as a screwdriver, into the harness connector. (This is to prevent accidental activation caused by static electricity.)
Always use CONSULT or SRS air bag warning lamp to perform the circuit diagnosis. (Never use an electric tester such as a circuit tester.)

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"

The Supplemental Restraint System such as вЂњAIR BAGвЂќ and вЂњSEAT BELT PRE-TENSIONERвЂќ, used along with a front seat belt, helps to reduce the risk or severity of injury to the dri ...

System description

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Other materials:

C1140 Actuator relay system
DTC Logic DTC DETECTION LOGIC DTC Display Item Malfunction detected condition Possible causes C1140 ACTUATOR RLY When a malfunction is detected in actuator relay. Harness or connector ABS actuator and electric unit (control unit) Fusible link ...

P1651 Starter motor relay
Description ECM controls ON/OFF state of the starter relay, according to the engine and vehicle condition. ECM transmits a control signal to IPDM E/R by CAN communication. Under normal conditions, ECM controls and maintains the starter relay in OFF state during following condition: Engi ...

Periodic maintenance
ENGINE COOLANT System Inspection WARNING: Do not remove the radiator cap when the engine is hot. Serious burns could occur from high pressure engine coolant escaping from the radiator. Wrap a thick cloth around the cap. Slowly push down and turn it a quarter turn to allow built-up pr ...