Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2008 Chrysler Crossfire V6-3.2LFACTORY OEM SERVICE PROCEDURE
Body Control Systems: Testing and Inspection
* REAR SPOILER INOPERATIVE
For a complete Body Control Module Circuit Diagram, Schematics and Diagrams.
Diagnostic Test
1. REAR SPOILER SWITCH
Turn the ignition off.
Disconnect the BCM C4 harness connector.
NOTE: Check connectors - Clean/repair as necessary.
Press and hold the Rear Spoiler Switch in the direction to raise the Rear Spoiler.
Measure the resistance between ground and the Rear Spoiler Switch Sense at the BCM C4 harness connector.
Is the resistance below 5.0 ohms?
Yes
- Go to 4
No
- Go to 2
2. OPEN REAR SPOILER SWITCH SENSE CIRCUIT
With the ignition off.
Disconnect the Rear Spoiler Switch harness connector.
NOTE: Check connectors - Clean/repair as necessary.
Measure the resistance of the Rear Spoiler Switch Sense circuit from the BCM C4 harness connector to the Rear Spoiler Switch harness connector.
Is the resistance below 5.0 ohms?
Yes
- Go to 3
No
- Repair the Rear Spoiler Switch Sense circuit for an open.
- Perform REAR SPOILER VERIFICATION TEST. Rear Spoiler Verification Test
3. REAR SPOILER SWITCH SENSE CIRCUIT GROUND CIRCUIT
With the ignition off.
Measure the resistance between ground and the Rear Spoiler Switch Ground circuit at the Rear Spoiler Switch harness connector.
Is the resistance below 5.0 ohms?
Yes
- Replace the Rear Spoiler Switch.
- Perform REAR SPOILER VERIFICATION TEST. Rear Spoiler Verification Test
No
- Repair the Rear Spoiler Switch Ground circuit for an open.
4. REAR SPOILER SWITCH
With the ignition off.
Press and hold the Rear Spoiler Switch in the direction to lower the Rear Spoiler.
Measure the resistance between ground and the Rear Spoiler Switch Sense at the BCM C4 harness connector.
Is the resistance between 190.0 - 210.0 ohms?
Yes
- Replace the Body Control Module.Body Control Module - Removal.
- Perform REAR SPOILER VERIFICATION TEST. Rear Spoiler Verification Test
No
- Replace the Rear Spoiler Switch.
- Perform REAR SPOILER VERIFICATION TEST. Rear Spoiler Verification Test
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.