| • | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. | 
| • | Review Strategy Based Diagnosis for an overview of the diagnostic approach. | 
| • | Diagnostic Procedure Instructions provides an overview of each diagnostic category. | 
Circuit  | Short to Ground  | High Resistance  | Open  | Short to Voltage  | Signal Performance  | 
|---|---|---|---|---|---|
B+  | 1  | B3794 08  | 1  | 1  | B3794 08, B3794 61  | 
Cruise Control Switch Signal  | 1  | B3794 08  | 1  | B3794 08  | B3794 08, B3794 61  | 
Cruise Control Switch Indicator Signal  | --  | 2  | 2  | B0835 00  | --  | 
1. Cruise Control Malfunction 2. Cruise Control Switch Indicator disabled  | |||||
The cruise control switch contains an LED that illuminates to indicate the cruise control system has been switched ON. Voltage is applied through the ON/OFF switch to the LED when the switch is pressed. The body control module (BCM) provides the ground path for the LED through a dedicated LED control circuit. Pressing the switch again opens the switch and the lamp turns OFF.
| • | The ignition is ON. | 
| • | The cruise switch is ON. | 
| • | The BCM detects excessive current in the cruise control indicator signal circuit. | 
| • | The above condition is present for greater than 5 seconds. | 
| • | The malfunction indicator lamp (MIL) will not illuminate. | 
| • | The cruise control system is disabled. | 
| • | The condition responsible for setting the DTC no longer exists. | 
| • | A history DTC will clear after 40 malfunction-free ignition cycles have occurred. | 
Cruise Control Description and Operation
Control Module References for scan tool information
| ⇒ | If the test lamp does not illuminate, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM. | 
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
| • | Control Module References for BCM replacement, setup, and programming |