Cruise Control: Testing and Inspection

Speed Control - 2.5L/3.0L
The complexity of the electronics involved with the vehicle speed control system and the communication network which is connected to the system, preclude the use of workshop general electrical test equipment. For diagnosis and testing of the vehicle speed control system, refer to the Jaguar approved diagnostic system.

The Jaguar approved diagnostic system tests and analyses all functions of the vehicle speed control system. The following DTCs may be tested using a suitable meter.

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

Visual Inspection Chart

Mechanical Electrical
Throttle body mechanism Throttle body actuator
Module
Switch(es)
Instrument cluster

1. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
2. If the cause is not visually evident, verify the symptom and refer to the Jaguar approved diagnostic system.