Ignition System: Testing and Inspection

Engine Ignition - VIN Range: N52048->N99999

Overview
There are changes to the engine management system (EMS) for 2006 my, the most obvious of which will be the change to 7-digit diagnostic trouble codes (DTCs) from the familiar 5-digit. Refer to the DTC index in this section for guidance on how to use these codes with the Jaguar approved diagnostic system or a scan tool.

Inspection and Verification
1. Verify the customer concern.
2. Visually inspect for obvious signs of mechanical or electrical damage.

Mechanical Electrical
Engine oil level Fuses
Cooling system coolant level Wiring harness
Fuel level Loose or corroded electrical connectors
Fuel contamination/grade/quality Ignition coils
Sensor(s)
Engine control module (ECM)
Transmission control module (TCM)

3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
4. If the cause is not visually evident use the Jaguar approved diagnostic system or a scan tool to retrieve the fault codes before proceeding to the diagnostic trouble code (DTC) Index.