Diagnostic Aids
| • | Repair any brake system related DTCs before performing this diagnostic. |
| • | If a BCM has been replaced, the brake pedal position (BPP) sensor must be calibrated. Refer to Brake Pedal Position Sensor Calibration. |
| • | For an intermittent condition, refer to Testing for Intermittent Conditions and Poor Connections. |
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Cruise Control Schematics Connector End View Reference: Cruise Control Connector End Views | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |
2 |
Does the Cruise On/Off Switch parameter display On? | Go to Step 5 | Go to Step 3 |
3 | Test the voltage signal circuit and the low reference circuit for an open, or for a high resistance. Refer to Circuit Testingand Wiring Repairs. Did you find and correct the condition? | Go to Step 7 | Go to Step 4 |
4 | Inspect for poor connections at the harness connector of the body control module (BCM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs. Did you find and correct the condition? | Go to Step 7 | Go to Step 6 |
5 | Replace the cruise control switch. Refer to Turn Signal Multifunction Switch Replacement. Did you complete the replacement? | Go to Step 7 | -- |
6 | Replace the BCM. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement? | Go to Step 7 | -- |
7 | Operate the system in order to verify the repair. Does the system operate properly? | System OK | Go to Step 2 |
