B2240

DTC Troubleshooting: B2240

DTC B2240:

XM Antenna Line Failure

1. Connect the HDS to the DLC.

2. Clear the DTC with the HDS.

3. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode. and then back to ON (II), or the ON mode 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 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 AM/FM/XM antenna [1][2]Antenna, Radio, and recheck. If the symptom/indicated goes away, replace the original AM/FM/XM antenna [1][2]Antenna, Radio. If the symptom/indicated is still present, update the AcuraLink control unit Programming and Relearning if it does not have the latest software, then recheck. If the software is the latest, replace the AcuraLink control unit (XM receiver) AcuraLink Control Unit (XM Receiver) Removal/Installation.

NO -

Reconnect the connector, and recheck the DTC.