Nissan Versa (N17): Precautions

Nissan Versa 2nd generation (N17) Service Manual / Electrical & power control / LAN System (LAN) / Precautions

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

The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.

Information necessary to service the system safely is included in the SR and SB section of this Service Manual.

WARNING:

  • To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in the event of a collision which would result in air bag inflation, all maintenance must be performed by an authorized NISSAN/INFINITI dealer.
  • Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag Module, see the SR section.
  • Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

  • When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing serious injury.
  • When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the battery and wait at least three minutes before performing any service.

Precautions for Trouble Diagnosis

CAUTION: Follow the instructions listed below. Failure to do this may cause damage to parts:

  • Never apply 7.0 V or more to the measurement terminal.
  • Use a tester with open terminal voltage of 7.0 V or less.
  • Turn the ignition switch OFF and disconnect the battery cable from the negative terminal when checking the harness.

Precautions for Harness Repair

  • Solder the repaired area and wrap tape around the soldered area.

NOTE: A fray of twisted lines must be within 110 mm (4.33 in).

Precautions for Harness Repair

  • Bypass connection is never allowed at the repaired area.

NOTE: Bypass connection may cause CAN communication error. The spliced wire becomes separated and the characteristics of twisted line are lost.

Precautions for Harness Repair

  • Replace the applicable harness as an assembly if error is detected on the shield lines of CAN communication line.

SYSTEM DESCRIPTION

COMPONENT PARTS

Component Parts Location

Component Parts Location

1. Combination meter

- M82: TYPE A

- M24: TYPE B

2. AV control unit M70

3. ABS actuator and electric unit (control unit) E33

4. TCM

- F44: CVT models

- F57: A/T models

5. ECM E16

6. IPDM E/R E46

7. EPS control unit M53

8. BCM

- M97: Models with Intelligent Key system

- M18: Models without Intelligent Key system

9. Data link connector M22

10. Steering angle sensor M64

11. Air bag diagnosis sensor unit M35

SYSTEM

Diagnosis and repair workflow

Trouble Diagnosis Flow Chart Trouble Diagnosis Procedure INTERVIEW WITH CUSTOMER Interview with the customer is important to detect the root cause of CAN communication system errors and t ...

Other materials:

Keyfob battery
Removal and Installation REPLACEMENT 1. Remove screw from the rear of keyfob. 2. Place the key with the lower case facing up. Use a suitable tool wrapped with tape between upper case and lower case and separate the lower case from the upper case. CAUTION: Do not touch the circuit board or ...

BCM (Body control module)
Removal and Installation CAUTION: Before replacing BCM, perform "READ CONFIGURATION" to save or print current vehicle specification. Refer to BCS "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (BCM) : Description". REMOVAL 1. Disconnect the negative battery terminal. Refer to ...

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