Jaguar Approved Diagnostic System

Jaguar approved diagnostic system
Given the complexity of the system and the potential for damage/injury, the preferred method of diagnosis is via the Jaguar approved diagnostic system.

If the Jaguar approved diagnostic system is not available, use a scan tool to extract DTCs and follow the pinpoint diagnostics.
1. Verify the customer concern.
2. Confirm the function of the warning lamp (if the warning lamp is inoperative, system faults will be signalled by an audible chime).
3. Visually inspect for obvious signs of electrical damage.

Electrical
- Battery condition, state of charge
- Make sure all electrical connector(s) are engaged correctly on the air bag circuits
- Wiring harness
- Air bag module(s)
- Make sure the restraints control module (RCM) is correctly installed
- Fuse(s)
- Sensor(s)
- Pretensioner(s)
- Warning lamp bulb(s)

4. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
5. If the cause is not visually evident, verify the symptom.