AcuraLink messages cannot be heard or are weak
- Turn the ignition switch to ON (II).
- Check that the audio system is operating normally and the speaker sound levels are normal from different audio sources (AM/FM, XM, CD/DVDs, navigation, etc.).
Does the audio system work normally and is the audio output from the speaker normal when playing various audio sources?
YES -Go to step 3.
NO -Do the audio system symptom troubleshooting.
- Check the audio system when AcuraLink messages are played.
Does the audio system mute when AcuraLink messages are being played?
YES -If audio system mutes and plays the messages at a normal volume, the system is OK at this time. If the messages are weaker than normal, go to step 4.
NO -Check for B-CAN codes. Repair any B-CAN codes, and recheck. If there are no B-CAN codes, substitute a known-good AcuraLink control unit (XM receiver) (see ACURALINK CONTROL UNIT (XM RECEIVER) REMOVAL/INSTALLATION ).
- Turn the ignition switch to LOCK (0).
- Disconnect these items:
- AcuraLink control unit (XM receiver) connector A (32P)
- Audio-Navigation unit connector D (14P)
- HandsFreeLink control unit 28P connector
- Check for continuity between AcuraLink control unit (XM receiver) connector A (32P) and audio-navigation unit connector D (14P) according to the table.
AcuraLink control unit (XM receiver) connector Audio-Navigation unit connector Wire color A13 D5 RED A14 D13 WHT A15 D6 BLK A16 D14 GRN Courtesy of AMERICAN HONDA MOTOR CO., INC.
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES -Go to step 7.
NO -There is an open in the wire(s) between the AcuraLink control unit (XM receiver) and the audio-navigation unit. Replace the affected shielded harness.
- Check for continuity between body ground and AcuraLink control unit (XM receiver) connector A (32P) according to the table.
AcuraLink control unit (XM receiver) connector Wire color A13 RED A14 WHT A15 BLK A16 GRN Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES -There is a short to body ground in the wire(s) between the AcuraLink control unit (XM receiver) and the audio-navigation unit. Replace the affected shielded harness.
NO -Go to step 8.
- Check for continuity between the terminals of audio-navigation unit connector D (14P) according to the table.
From terminal To terminals D4 (GRY) D5 (RED), D6 (BLK), D13 (WHT), D14(GRN) D5 (RED) D6 (BLK), D13 (WHT), D14 (GRN) D6 (BLK) D13 (WHT), D14 (GRN) D13 (WHT) D14 (GRN) Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity between any of the terminals?
YES -There is a short in the wires between the AcuraLink control unit (XM receiver) and the audio-navigation unit. Replace the affected shielded harness.
NO -Go to step 9.
- Turn the ignition switch to ON (II).
- Measure the voltage between body ground and AcuraLink control unit (XM receiver) connector A (32P) according to the table.
AcuraLink control unit (XM receiver) connector Wire color A13 RED A14 WHT A15 BLK A16 GRN Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there less than 0.2 V?
YES -Go to step 11.
NO -There is a short to power in the wire(s) between the AcuraLink control unit (XM receiver) and the audio-navigation unit. Replace the affected shielded harness.
- Turn the ignition switch to LOCK (0).
- Disconnect audio-navigation unit connector B (24P).
- Check for continuity between the HandsFreeLink control unit 28P connector and audio-navigation unit connector B (24P) according to the table.
HandsFreeLink control unit connector Audio-Navigation unit connector Wire color No. 11 B5 LT BLU No. 25 B16 PUR No. 26 B17 BRN Courtesy of AMERICAN HONDA MOTOR CO., INC.
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES -Go to step 14.
NO -There is an open in the wire(s) between the HandsFreeLink control unit and the audio-navigation unit. Replace the affected shielded harness.
- Check for continuity between body ground and audio-navigation unit connector B (24P) according to the table.
Audio-Navigation unit connector Wire color B5 LT BLU B16 PUR Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES -There is a short to body ground in the wire(s) between the HandsFreeLink control unit and the audio-navigation unit. Replace the affected shielded harness.
NO -Go to step 15.
- Check for continuity between the terminals of audio-navigation unit connector B (24P) according to the table.
From terminal To terminals B5 (LT BLU) B16 (PUR), B17(BRN) B16 (PUR) B17 (BRN) Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity between any of the terminals?
YES -There is a short to the wire(s) between the HandsFreeLink control unit and the audio-navigation unit. Replace the affected shielded harness.
NO -Go to step 16.
- Substitute a known-good AcuraLink control unit (XM receiver) (see
ACURALINK CONTROL UNIT (XM RECEIVER) REMOVAL/INSTALLATION
), and recheck.
Does the problem go away?
YES -Update the AcuraLink control unit (see AcuraLink Control Unit Update ) if it does not have the latest software, then recheck. If the software is the latest, replace the AcuraLink control unit (XM receiver) (see ACURALINK CONTROL UNIT (XM RECEIVER) REMOVAL/INSTALLATION ).
NO -Substitute a known-good HandsFreeLink control unit (see HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION ), and recheck. If the symptom/indication goes away, replace the original HandsFreeLink control unit (see HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION ). If the symptom is still present, replace the audio-navigation unit (see AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION ).