B1553

DTC B1553: CAN Communication Circuit Malfunction

DTC Detecting Condition and Trouble Area






DTC Troubleshooting

1.
Was "Air Conditioning System Check" performed?
YES -
Go to Step 2.
NO -
Go to Air Conditioning System Check Air Conditioning System Check:Auto A/C.

2. DTC check

Connect scan tool to DLC with ignition switch turned OFF.
Check DTC in BCM.

Is DTC U0073 (No.0073), U0100 (No.0100) and/or U0155 (No.0155) detected?
YES -
Go to applicable DTC diag. flow.
NO -
Substitute a known-good HVAC control module and a known-good BCM individually and recheck.