B2204

DTC Troubleshooting: B2204

DTC B2204: B-CAN Communication Line Error

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN system diagnosis test mode A. Troubleshooting - B-CAN System Diagnosis Test Mode A

1. Connect the HDS to the DLC. How to Troubleshoot the AcuraLink (USA models with Navigation)

2. Turn the ignition switch to ON (II).

3. Check for DTCs with the HDS and DTC log data in the navigation system diagnostic mode. Navigation System Diagnostic Mode (With Navigation)

Is DTC B2204 indicated with HDS and on the navigation display?
YES - Go to step 4.

NO - Intermittent failure, the B-CAN communication line is OK at this time. Check for poor connections or loose terminals at the AcuraLink control unit (XM receiver).


4. Turn the ignition switch to LOCK (0).

5. Disconnect AcuraLink control unit (XM receiver) connector B (16P) and the gauge control module 36P connector.

6. Check for continuity between AcuraLink control unit (XM receiver) connector B (16P) terminal No. 5 and gauge control module 36P connector terminal No. 30.

Is there continuity?
YES - Check for poor connections or loose terminals at the AcuraLink control unit (XM receiver). If all connections are OK, update the AcuraLink control unit (XM receiver) Programming and Relearning if it does not have the latest software, then recheck. If the software is the latest, substitute a known-good AcuraLink control unit (XM receiver), AcuraLink Control Unit (XM Receiver) Removal/Installation (USA models with Navigation) and recheck. If the symptom/indication goes away, replace the original AcuraLink control unit (XM receiver). AcuraLink Control Unit (XM Receiver) Removal/Installation (USA models with Navigation)

NO - Repair open in the wire between the AcuraLink control unit (XM receiver) and the gauge control module.