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.
2002 Chrysler Voyager ECFACTORY OEM SERVICE PROCEDURE
Bus Messages Missing
NOTE:
After making any repairs, perform BODY VERIFICATION TEST under VERIFICATION TESTS.
- Turn ignition on. Using scan tool, attempt to communicate with Body Control Module (BCM). If scan tool communicates with BCM, go to next step. If scan tool does not communicate with BCM, go to BUS +/- SIGNALS OPEN OR NO RESPONSE FROM BCM under COMMUNICATIONS.
- Using scan tool, select BODY CONTROL MODULE then SYSTEM TEST. If scan tool displays PCM ACTIVE ON BUS, go to next step. If scan tool does not display PCM ACTIVE ON BUS, go to PCM MESSAGES NOT RECEIVED under COMMUNICATIONS.
- Attempt to communicate with Front Control Module (FCM). If scan tool communicates with FCM, go to next step. If scan tool does not communicate with FCM, go to NO RESPONSE FROM FRONT CONTROL MODULE under COMMUNICATIONS.
- Attempt to communicate with Transmission Control Module (TCM). If scan tool communicates with TCM, replace overhead console. If scan tool does not communicate with TCM, go to NO RESPONSE FROM TRANSMISSION CONTROL MODULE under COMMUNICATIONS.
Factory Service Tools
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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.
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