BUS MESSAGES MISSING
For a complete wiring diagram Refer to Section 8W.
| Possible Causes |
| NO RESPONSE FROM EVIC |
| INTERMITTENT CONDITION |
| NO RESPONSE - PCI BUS - PCM |
| NO RESPONSE - PCI BUS - BCM |
| ELECTRONIC VEHICLE INFORMATION CENTER |
Diagnostic Test
1. EVIC SELF TEST RESULTNOTE: The EVIC self test can performed manually or by using the scan tool.
Turn the ignition off.
Perform the EVIC self test.
Depress and hold the RESET and C/T (EVIC) buttons while turning the ignition on.
Does the EVIC display "PASSED SELF TEST"?
Yes
- Go To2
No
- Go To4
2. NO RESPONSE - PCI BUS - PCM
Turn the ignition on.
With the scan tool, select Body Computer, System Tests, then PCM Monitor.
Does the scan tool display "PCM Active on the Bus"?
Yes
- Go To3
No
- Refer to COMMUNICATION for the related symptom(s).
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
3. NO RESPONSE - PCI BUS - BCM
Turn the ignition on.
With the scan tool, attempt to I/D or communicate with the BCM.
Was the scan tool able to I/D or communicate with the BCM?
Yes
- Replace the EVIC in accordance with the Service Information.
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
No
- Refer to COMMUNICATION for the related symptom(s).
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
4. NO RESPONSE - PCI BUS - EVIC
Turn the ignition off.
Perform the EVIC self test.
Press and hold the RESET and C/T buttons.
Turn the ignition on.
Does the EVIC display "BUS"?
Yes
- Refer to symptom *NO RESPONSE FROM COMPASS in the Communication category.
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
No
- The condition is not present at this time. Monitor scan tool parameters while wiggling the related wire harness. Refer to any Technical Service Bulletins (TSB) that may apply. Visually inspect the related wiring harness and connector terminals.
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)