• | 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 | Open/High Resistance | Short to Voltage | Signal Performance |
---|---|---|---|---|
Cruise Control Indicator Dimming Control | -- | -- | B0835 | -- |
Cruise Control Switch Signal | B3794 | B3794 | B0835 | B3794 |
The body control module (BCM) monitors the cruise control indicator dimming control switch and the cruise control switch signal circuits. When the cruise on/off switch is pressed ON, the steering wheel control switch assembly - left is closed and the signal circuits are high. When the cruise on/off switch is pressed OFF, the cruise control switch is open and the signal circuit are low.
The ignition is ON.
• | The BCM detects excessive current in the cruise control indicator dimming control or the cruise control switch signal circuit. |
• | The above condition is present for greater than 5 seconds. |
• | The BCM stores DTC B0835 in memory. |
• | The cruise control system becomes inoperative. |
• | The DTC becomes history when the conditions for setting the DTC are no longer present. |
• | The history DTC clears after 50 malfunction-free warm-up cycles. |
Using the Failure Records data may help locate an intermittent condition. If you cannot duplicate the DTC, the information in the Failure Records can help determine how many miles since the DTC set. The Fail Counter and Pass Counter can help determine how many ignition cycles that the diagnostic test reported a pass and/or a fail.
Cruise Control Description and Operation
⇒ | If the test lamp illuminates, test the cruise control indicator dimming control circuit for a short to voltage. If the circuit tests normal, replace the BCM. |
⇒ | If the test lamp illuminates, test the cruise control switch signal circuit for a short to voltage. 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 |