B2240

DTC Troubleshooting: B2240

DTC B2240: XM Antenna Error

1. Connect the HDS to the DLC. How to Troubleshoot the AcuraLink (With AcuraLink)

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 DTCs with the HDS.

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

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


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

Is it connected properly?
YES - Substitute a known-good XM antenna, Removal and Replacement and recheck. If the symptom/indication goes away, replace the original XM antenna. Removal and Replacement If the symptom/indication is still present update the AcuraLink control unit if it does not have the latest software, then recheck. If the software is the latest, replace the AcuraLink control unit. AcuraLink Control Unit (XM Receiver) Removal/Installation

NO - Reconnect the connector, and recheck the DTC.