XM radio preset memory is lost (with navigation with AcuraLink)

WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Check the vehicle battery condition first (see BATTERY TEST ).
Check the connectors for poor connections or loose terminals.
If you replace the AcuraLink control unit (XM receiver), the AcuraLink must be reactivated by Acura Client Services.
If you can only tune to channel 000, 001, 174, and 247, make sure the audio-navigation unit is set to channel mode (see owner's manual), if it is set to channel mode, call XM Satellite Radio client support, and check the account activation status.
Lock and unlock the vehicle with the remote to make sure the vehicle recognizes which remote (driver 1 or driver 2) is being used.

Turn the ignition switch to ON (II).
Turn on the audio system and set each of the XM radio channel preset buttons.
Do each of the XM radio channel preset buttons set properly?

YES -Go to step 3.

NO -Go to step 5.
Turn the ignition switch to LOCK (0) for 1 minute, and then back to ON (II).
Test all of the XM radio channel preset buttons for proper recall operation.
Do the preset buttons recall the set radio stations?

YES -Intermittent failure, the system is normal at this time. Check connections at the audio-navigation unit.

NO -Go to step 5.
Turn the ignition switch to LOCK (0).
Measure the voltage between AcuraLink control unit (XM receiver) connector A (32P) terminal No. 1 and body ground.

Fig 1: Measuring Voltage Between Connector A (32P) Terminal No. 1 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there battery voltage?

YES -Go to step 7.

NO -Repair an open in the wire between the No. 5 (10 A) fuse in the under-dash fuse/relay box and AcuraLink control unit (XM receiver) connector A (32P) terminal No. 1.
Turn the ignition switch to ON (II).
Measure the voltage between body ground and AcuraLink control unit (XM receiver) connector A (32P) terminals No. 2 and No. 3 individually.

Fig 2: Measuring Voltage Between Body Ground And Connector A (32P) Terminals No. 2 And No. 3
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there battery voltage?

YES -Go to step 9.

NO -Repair an open in the wire between the No. 21 (7.5 A) fuse and the No. 32 (10 A) fuse in the under-dash fuse/relay box and AcuraLink control unit (XM receiver) connector A (32P) terminals No. 2 and No. 3.
Measure the voltage between AcuraLink control unit (XM receiver) connector A (32P) terminal No. 28 and body ground.

Fig 3: Measuring Voltage Between Connector A (32P) Terminal No. 28 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there less than 0.2 V?

YES -Update the AcuraLink control unit (XM receiver) (see ACURALINK CONTROL UNIT UPDATE ) if it does not have the latest software, and recheck. If the software is the latest, substitute a known-good AcuraLink control unit (XM receiver) (see ACURALINK CONTROL UNIT (XM RECEIVER) REMOVAL/INSTALLATION ), and recheck. If the symptom/indication goes away, replace the original AcuraLink control unit (XM receiver) (see ACURALINK CONTROL UNIT (XM RECEIVER) REMOVAL/INSTALLATION ).

NO -Repair an open or high resistance in the wire between AcuraLink control unit (XM receiver) connector A (32P) terminal No. 28 and body ground (G606) (see CONNECTOR TO FUSE/RELAY BOX INDEX ).