Symptom Related Diagnostic Procedures

CRUISE CONTROL SYSTEM ON-BOARD DIAGNOSIS
There are two on-board diagnostic functions:
- Operation Mode, which checks for and indicates correct operation of the input signals to the control module.
- Condition Detection Mode, which indicates troubles in the system.

The two functions can be accessed by using either of the following methods:
1. Checking the flashing pattern of the cruise set indicator light in the instrument cluster.
2. Checking the output of the data link connector by using the Special Service Tools New Generation Star tester.