Test Description
WARNING: This page is about a different car, the 2007 Cadillac XLR. However, it is still accessible from the selected car via links, so may be relevant.
The number below refers to the step number on the diagnostic table.
- 5: This step tests the cruise control switch supply voltage circuit for an open, for a short to ground or for a high resistance.
Cruise Control Inoperative/Malfunctioning
| Step | Action | Values | Yes | No |
|---|---|---|---|---|
| Schematic Reference : Cruise Control Schematics (Adaptive Cruise) or Cruise Control Schematics (Conventional Cruise) Connector End View Reference: Cruise Control Connector End Views or Engine Control Module Connector End Views |
||||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | - | Go to Step 2 | Go to Diagnostic System Check - Vehicle |
| 2 |
|
- | Go to Step 3 | Go to Step 5 |
| 3 |
|
- | Go to Step 4 | Go to Step 9 |
| 4 |
|
- | Go to Diagnostic Aids | Go to Step 9 |
| 5 |
|
- | Go to Step 6 | Go to Step 11 |
| 6 |
|
B+ | Go to Step 7 | Go to Step 8 |
| 7 | Test the cruise control switch signal circuit for an open or for a short to ground between C7 and the BCM. Refer to Circuit Testing
and Wiring Repairs
. Did you find and correct the condition? |
- | Go to Step 14 | Go to Step 10 |
| 8 | Test the cruise control switch signal circuit for an open or for a short to ground between C7 and the cruise control switch. Refer to Circuit Testing
and Wiring Repairs
. Did you find and correct the condition? |
- | Go to Step 14 | Go to Step 9 |
| 9 | Inspect for poor connections at the harness connector of the cruise control switch. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
. Did you find and correct the condition? |
- | Go to Step 14 | Go to Step 12 |
| 10 | Inspect for poor connections at the harness connector of the BCM. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
. Did you find and correct the condition? |
- | Go to Step 14 | Go to Step 13 |
| 11 | Repair the open, the high resistance or the short to ground in the cruise control switch supply voltage circuit. Refer to Circuit Testing
and Wiring Repairs
. Did you complete the repair? |
- | Go to Step 14 | - |
| 12 | Replace the cruise control switch. Refer to Turn Signal Multifunction Switch Replacement
. Did you complete the replacement? |
- | Go to Step 14 | - |
| 13 | Replace the BCM. Refer to Control Module References
for replacement, setup and programming. Did you complete the replacement? |
- | Go to Step 14 | - |
| 14 | Operate the vehicle within the conditions for cruise control operation. Does the cruise control system operate properly? |
- | System OK | Go to Step 2 |