Inspection And Verification

CAUTION: Diagnosis by substitution from a donor vehicle is NOT acceptable. Substitution of control modules does not guarantee confirmation of a fault, and may also cause additional faults in the vehicle being tested and/or the donor vehicle

NOTE:

If the control module or a component is at fault and the vehicle remains under manufacturer warranty, refer to the warranty policy and procedures manual (section B1.2), or determine if any prior approval program is in operation, prior to the installation of a new module/component
Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests

Verify the customer concern
1. Confirm the function of the warning lamp (if the warning lamp is inoperative, system faults will be signalled by an audible chime)

Visually inspect for obvious signs of damage and system integrity

VISUAL INSPECTION

MECHANICAL	ELECTRICAL
Check for the installation of non-standard accessories which may affect or obstruct the function of the supplemental restraint system Check the condition of trim, etc at the supplemental restraint system components Sensor(s) Pretensioner(s) Airbag module(s) Occupant classification sensor control module Seat position sensor	Fuse(s) Wiring harness Battery condition, state of charge Make sure all electrical connector(s) are engaged correctly on the airbag circuits Make sure the restraints control module is correctly installed Warning indicator Impact sensor(s) Buckle sensor(s) Pretensioner(s) Airbag module(s) Passenger airbag deactivation switch Passenger airbag deactivation warning indicator Occupant classification sensor control module (Local Interconnect Network (LIN) type communications) Seat position sensor Clockspring

MECHANICAL

ELECTRICAL

Check for the installation of non-standard accessories which may affect or obstruct the function of the supplemental restraint system
Check the condition of trim, etc at the supplemental restraint system components
Sensor(s)
Pretensioner(s)
Airbag module(s)
Occupant classification sensor control module
Seat position sensor

Fuse(s)
Wiring harness
Battery condition, state of charge
Make sure all electrical connector(s) are engaged correctly on the airbag circuits
Make sure the restraints control module is correctly installed
Warning indicator
Impact sensor(s)
Buckle sensor(s)
Pretensioner(s)
Airbag module(s)
Passenger airbag deactivation switch
Passenger airbag deactivation warning indicator
Occupant classification sensor control module (Local Interconnect Network (LIN) type communications)
Seat position sensor
Clockspring

If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step. Faults in supplemental restraint system harnesses would normally mean replacement of the relevant harness. Supplemental restraint system harness repairs are not recommended

SYMPTOM AND POSSIBLE CAUSE

SYMPTOM	POSSIBLE CAUSES	ACTION
Deployable device connector and/or wiring harness connector damaged	Wiring harness connector connected/disconnected without first disengaging the connector plunger	NOTE: Damage caused by an incorrect removal or installation procedure is not warrantable. Install a new wiring harness and/or deployable device as necessary
Airbag warning light on and Diagnostic Trouble Codes (DTC(s)) B0001-13 set	Wiring harness connector contact The Restraints Control Module (RCM) needs to be updated the latest software calibration	Refer to the service instruction below - 'Airbag Warning Light On and DTC(s) B0001-13 set

If the cause is not visually evident, verify the symptom and refer to the Symptom Chart, alternatively check for Diagnostic Trouble Code(s) and refer to the DTC(s) Index
Check JLR claims submission system for open campaigns. Refer to the corresponding bulletins and SSMs which may be valid for the specific customer complaint and complete the recommendations as required.
When installing or checking the SRS with AK2 connectors the locking plunger must be engaged