F-CAN Circuit Troubleshooting
  1. Check for continuity between ACC unit 20P connector terminal No. 10 and body ground.
Is there continuity?
YES -
Go to Step 12 .
NO -
Repair open in the wire between the ECM/PCM (A3) and the ACC unit.■
  1. Remove the jumper wire from ECM/PCM connector A (49P).