Diagnostic Instructions
| • | 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. |
Diagnostic Fault Information
Circuit | Short to Ground | High Resistance | Open | Short to Voltage | Signal Performance |
|---|---|---|---|---|---|
B+ | 1 | B3794 08, B3794 6 | 1 | 1 | B3794 08, B3794 61 |
Cruise Control Switch Signal | 1 | B3794 08, B3794 6 | 1 | B3794 08 | B3794 08, B3794 61 |
Cruise Control Indicator Low Reference | -- | 2 | 2 | 2 | -- |
1. Cruise Control Malfunction 2. Cruise Control Indicator Disabled | |||||
Circuit/System Description
The body control module (BCM) monitors the cruise control indicator switch. When the cruise on/off switch is pressed ON, the cruise control switch is closed and the signal circuit is low. When the cruise on/off switch is pressed OFF, the cruise control switch is open and the signal circuit is high.
Reference Information
Schematic Reference
Connector End View Reference
Description and Operation
Cruise Control Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Testing
Important: Refer to DTC B3794 before performing this diagnostic, if this code is set as current or history.
- Ignition OFF, disconnect the harness connector at the steering wheel controls switch-left.
- Ignition ON, verify that a test lamp illuminates between the low reference circuit terminal 9 and B+.
- If all circuits test normal, test or replace the steering wheel controls switch-left.
| ⇒ | If the test lamp does not illuminate, test the low reference circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
| • | Control Module References for BCM replacement, setup, and programming |
