Land Rover Defender manuals

Land Rover Defender: Supplemental Restraint System (SRS) Precautions

WARNING: Do not install rear facing child seats in the front passenger seat.

The SRS contains components which are potentially hazardous to service personnel if not handled correctly. The following guidelines and precautions are intended to alert personnel to potential sources of danger and emphasise the importance of ensuring the integrity of the SRS components installed to the vehicle.

WARNING: The following precautions MUST be adhered to when working on the SRS:

CAUTION: Do not expose air bag modules or safety belt pre-tensioners to temperatures exceeding 85º C (185º F).

It should be noted that these precautions are not restricted to operations performed when servicing the SRS. The same care should be exercised when working on ancillary systems and components located in the vicinity of SRS components; these include but are not limited to:

Making the system safe

Before working on or in the vicinity of SRS components, make sure the system is rendered safe by performing the following operations:

NOTE: The SRS uses energy reserve capacitors to keep the system active in the event of electrical supply failure under crash conditions. It is necessary to allow the capacitors sufficient time to discharge (1 minute) in order to avoid the risk of accidental deployment.

Installation

In order to make sure system integrity, it is essential that the SRS system is regularly checked and maintained so that it is ready for effective operation in the event of a collision. Carefully inspect SRS components before installation. Do not install a part that shows signs of being dropped or improperly handled, such as dents, cracks or deformation.

WARNING: The integrity of the SRS is critical for safety reasons. Make sure the following precautions are always adhered to:

CAUTIONS:

NOTES:

SRS component testing precautions

The SRS components are triggered using relatively low operating currents, always adhere to the following:

WARNING: Never use a multimeter or other general purpose equipment on SRS components. Use only Jaguar Land Rover diagnostic equipment to diagnose system faults.

Standard Workshop Practices

WARNING: Do not use electrical test equipment on the SRS harness while it is connected to any of the SRS components, it may cause accidental deployment and injury.

Handling and storage

Always observe the following precautions when handling SRS components:

Standard Workshop Practices

Standard Workshop Practices

WARNINGS:

CAUTION: Improper handling or storage can internally damage the air bag module making it inoperative. If you suspect the air bag module has been damaged, install a new module and refer to the deployment/disposal procedures for disposal of the damaged module.

SRS harness and connectors

Always observe the following precautions with regards to SRS system electrical wiring:

NOTE: SRS wiring can be identified by a special yellow outer sleeve protecting the wires (black with yellow stripe protective coverings are sometimes used).

Standard Workshop Practices

WARNING: Always make sure SRS wiring is routed correctly. Be careful to avoid trapping or pinching the SRS wiring.

Standard Workshop Practices

WARNING: Do not leave the connectors hanging loose or allow SRS components to hang from their harnesses. Look for possible chafing points.

Impact sensors - inspection

After any degree of side or frontal body damage, inspect the impact sensors. Replace a sensor if there is any sign of damage.

CAUTION: Take extra care when painting or carrying out bodywork repairs in the vicinity of the impact sensors. Avoid direct exposure of the impact sensors or link harnesses to heat guns, welding or spraying equipment. Take care not to damage sensor or harness when reinstalling components.

Clockspring

CAUTION: Always follow the procedure for installing and checking the clockspring as instructed in the SRS repairs section. Comply with all safety and installation procedures to make sure the system functions correctly.

Observe the following precautions:

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