No PCI Loopback

Test 1 - 4:

Test 5 - 6:

Test 7 - 9:

Test 10 - 11:

SYMPTOM
NO PCI LOOP BACK

WHEN MONITORED
With the ignition on and the module transmitting information on the BUS.

SET CONDITION
The code will set immediately if the on-board diagnostic cannot detect the module transmitting information on the BUS. NOTE: Any Bus Failure will may cause a stored code to set.

POSSIBLE CAUSES
- Wiring harness intermittent
- Open PCI BUS circuit at the data link connector (DLC)
- PCI BUS circuit shorted to voltage
- Module short to voltage
- PCI BUS circuit shorted to ground
- Checking for voltage at ACM
- Ground circuit open
- PCI BUS circuit open
- Airbag control module - ACM
- ACM, no response from