CAN Communication Error

Symptom:
CAN COMMUNICATION ERROR

Test 1-3:

Test 4-8:

Test 9-11:

POSSIBLE CAUSES
- CAN DTCS PRESENT IN OTHER MODULES
- INTERMITTENT CAN COMMUNICATION ERROR DTC
- DAMAGED CAB/CAB HARNESS CONNECTOR
- CAN CIRCUIT(S) SHORT TO VOLTAGE
- CAN CIRCUIT(S) SHORTED TOGETHER
- CAN CIRCUIT(S) SHORT TO GROUND
- CAN CIRCUIT(S) OPEN
- FUSED OPTIONAL EQUIPMENT RELAY OUTPUT CIRCUIT OPEN
- FUSED B(+) CIRCUIT OPEN
- GROUND CIRCUIT OPEN
- ANTILOCK BRAKE CONTROLLER