B2240

DTC Troubleshooting: B2240

DTC B2240:

XM Antenna line failure

1. Connect the HDS to the DLC How to Troubleshoot the AcuraLink.

2. Clear the DTC with the HDS.

3. Turn the ignition switch to LOCK (0) and then back to ON (II), and wait at least 30 seconds.

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 AM/FM/XM Antenna Replacement, and recheck. If the symptom/indication goes away, replace the original AM/FM/XM antenna AM/FM/XM Antenna Replacement. If the symptom/indication 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, replace the AcuraLink control unit (XM receiver) AcuraLink Control Unit-XM Receiver Removal/Installation.

NO -

Reconnect the connector, and recheck the DTC.