ATC Messages Not Received

Test 1 - 2:

Test 3 - 6:

Test 7 - 8:

SYMPTOM
ATC MESSAGES NOT RECEIVED

TEST NOTE
This symptom is diagnosed using the test ATC MESSAGES NOT RECEIVED.

WHEN MONITORED
Ignition ON.

SET CONDITION
This code is set when the BCM has not received any PCI bus messages from the ATC head for at least 18 seconds.

POSSIBLE CAUSES
- Ground wire open
- PCI bus circuit open
- Fused ignition switch output circuit short to ground
- Fused ignition switch output CKT open
- Fused ignition switch output wire short to ground
- ATC head
- ATC head