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.
2003 Chrysler Intrepid (CANADA) V6-2.7LFACTORY OEM SERVICE PROCEDURE
PCI Bus Communication Failure
Test 1 - 2:
Test 3 - 6:
Test 7 - 8:
SYMPTOM
PCI BUS COMMUNICATION FAILURE
POSSIBLE CAUSES
- Wiring harness intermittent
- Open PCI Bus circuit at The Data Link Connector (DLC)
- High voltage on the PCI bus circuits at the BCM connectors
- Module (PCI Bus short To voltage)
- PCI Bus circuit shorted to voltage
- Low resistance to ground on the PCI Bus circuits at the BCM connectors
- Module (PCI Bus short To ground)
- PCI Bus circuit shorted to ground
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.