LR3/Disco 3
operations:
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Remove the ignition key.
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Disconnect the battery, earth lead first.
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Wait 10 minutes for the SRS power circuit to discharge before commencing work.
NOTE:
Installation
In order to ensure 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.
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Do not fit accessories or other objects to trim panels which cover airbags.
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Never install used SRS components from another vehicle or attempt to repair an SRS component.
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When repairing an SRS system, only use genuine new parts.
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Never apply electrical power to an SRS component unless instructed to do so as part of an approved test
procedure.
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Special fixings are necessary for installing an airbag module – do not use other fixings and ensure that all fixings
are tightened to the correct torque.
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Always use new fixings when replacing an SRS component.
NOTE:
NOTE:
SRS component testing precautions
The SRS components are triggered using relatively low operating currents, always adhere to the following :
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 (10 minutes) in order to avoid
the risk of accidental deployment.
WARNING: The integrity of the SRS systems is critical for safety reasons. Ensure the following
precautions are always adhered to:
CAUTION: Take care not to trap airbag modules when fitting interior trim components.
CAUTION: Ensure SRS components are not contaminated by oil or grease.
Following seat belt pre-tensioner deployment, the seat belts can still be used as conventional seat belts but will
need to be replaced as soon as possible to ensure full SRS protection.
If the SRS components are to be replaced, the part number/bar code of the new unit must be recorded.
WARNING: Never use a multimeter or other general purpose equipment on SRS components. Use only
T4 to diagnose system faults.
