B2240

DTC Troubleshooting: B2240

DTC B2240: XM Antenna Error

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

2. Clear the DTC with the HDS.

3. Turn the ignition switch to LOCK (0), then turn it to ON (II) and wait 30 seconds or more.

4. Check for DTC with the HDS.

Is DTC B2240 indicated?
YES - Go to step 5.

NO - Intermittent failure, the AM/FM/XM antenna is OK at this time. Check for poor connections or loose terminals at the AcuraLink control unit (XM receiver) and the AM/FM/XM antenna.


5. Check the XM antenna lead connection at the AcuraLink control unit (XM receiver) and at the AM/FM/XM antenna.

Is it connected properly?
YES - Substitute a known-good AM/FM/XM antenna, Service and Repair and recheck. If the symptom/indicated goes away, replace the original AM/FM/XM antenna. Service and Repair If the symptom/indicated is still present, 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 - Reconnect the connector, and recheck the DTC.