Acuralink Acura MDX II

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1. Make sure the ignition switch is in LOCK(O).
2. Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.
3. Turn the ignition switch to ON (II).
4. Make sure the HDS communicates with the vehicle and the AcuraLink control unit (XM receiver). If it doesn't, troubleshoot the DLC circuit (see «DLC CIRCUIT TROUBLESHOOTING»(/acura/mdx/ii-2006-2010/remont/testing-diagnostics/#pgm-fi-system__dlc-circuit-troubleshooting) ).
5. Select XM/HIP in the BODY ELECTRICAL menu.
6. Select DTCs in the XM/HIP menu.
7. Check for DTCs. If any DTCs are indicated, write down the DTCs, then go to the indicated «DTC TROUBLESHOOTING»(/acura/mdx/ii-2006-2010/remont/entertainment-systems/#acuralink) . If no DTCs are indicated, refer to «SYMPTOM TROUBLESHOOTING»(/acura/mdx/ii-2006-2010/remont/entertainment-systems/#acuralink) . NOTE: After troubleshooting, clear the DTCs with the HDS.

To delete all messages including Recall and Diagnostic Info

1. Connect the HDS to the data link connector (DLC).
2. Using the HDS, go to the BODY ELECTRICAL menu, select XM/HIP, then select HIP RESET menu, select DTC Log Data Clear and follow the HDS on screen instructions.

Note. Diagnostic info and recall/campaign messages can only be deleted with HDS.

1. Press the INFO button to bring up the Information screen.
2. Scroll to the Message option, then select it by pressing ENTER on the interface selector.
3. Select the message category that contains the message you want to delete.
4. Use the interface knob to scroll up or down to the message title you want to delete, and select it by pressing ENTER on the interface selector.
5. Scroll to Delete with the interface knob, and select it by pressing ENTER on the interface selector.

Note. The Delete All Messages command does not apply to Diagnostic Info and Recall messages. They can only be deleted with HDS.

1. Press the SETUP button to view the setup screen.
2. Select MORE by pushing the interface selector to the right.
3. Use the interface knob to scroll to the AcuraLink/Messages button, and select it by pressing ENTER on the interface selector.
4. Scroll to the Delete Messages option, and select it by pressing ENTER on the interface selector.
5. Scroll to the category with the messages you want to delete, and select the category by pressing ENTER on the interface selector.

Special tools required

1. GNA600 kit and an iN workstation with AcuraLink update software
2. 256MB PCMCIA Memory Card
3. AcuraLink Reprogramming Cable
4. AcuraLink Reprogramming Cable Adapter

Note. Whenever you install a new AcuraLink control unit, you must update the control unit with the latest software. The GNA600 is the only tool currently available to update the AcuraLink control unit. If you are updating a control unit in a new vehicle, make sure all the fuses are installed. Make sure the in workstation has the latest HDS software installed. (The AcuraLink update software is contained in the HDS update CD.) The update may take up to 60 minutes. You cannot update an AcuraLink control unit with its current or previous software versions. It will only accept a new software version. Before you update the AcuraLink control unit, test the vehicle battery (see BATTERY TEST ), and only proceed if the results are good. Make sure the battery is connected to a battery booster (not a battery charger) while updating the control unit. If the battery is not in good condition, or it dies during the updating procedure, you may damage the AcuraLink control unit. If you encounter errors in the software, follow the on-screen instructions, or if necessary, reboot the in workstation, and try again. There are five process involved in updating the AcuraLink control unit: Setting up the GNA600 Capturing the current program ID from the AcuraLink control unit Download the new software to the GNA600 Update the software in the vehicle's AcuraLink control unit Confirm the AcuraLink self-diagnosis Do the update with the ignition switch turned to LOCK (0). To prevent damage to the AcuraLink control unit, do not operate anything electrical (brakes, head lights, etc.) during the update. Check any official Honda service website for more service information about updating the AcuraLink control unit. To update the AcuraLink control unit, you must connect the GNA600 to the AcuraLink connector (A), not the DLC. Before you update an AcuraLink control unit, read the procedure. The order of connecting and disconnecting connectors is critical, and some steps must be done within a specified period of time. If the steps are not followed exactly, you may have to repeat the procedure from the start, and in same cases, you may damage the GNA600 or the AcuraLink control unit.

1. Make sure the ignition switch is turned to LOCK (0).
2. Remove the right rear side trim panel (see «TRIM REMOVAL/INSTALLATION - REAR SIDE AREA»(/acura/mdx/ii-2006-2010/remont/exteriorinterior-trim/#interior-trim__trim-removalinstallation-rear-side-area) ).
3. Launch the AcuraLink Update program and follow the on-screen instructions to complete the update. NOTE: If the software in the AcuraLink control unit is the latest, disconnect the update tool from the AcuraLink connector. If the update is part of a troubleshooting or a repair procedure, return to that procedure and continue troubleshoot or repairing the vehicle.

Symptom Troubleshooting Index

SYMPTOM TROUBLESHOOTING CHART

System Description

The AcuraLink uses the client's cell phone or XM radio to transmit and receive information about the vehicle. In addition, the AcuraLink system has a Text-To-Speech engine, and will also have the capability to initiate voice or data calls with the HandsFreeLink control unit.

The AcuraLink control unit (HIP) is very similar in design to an XM receiver that has additional communication features. The main functions include

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1. Receiving and playing XM stations. Displays station, song title and other information on the audio unit using the GA-Net bus.
2. Receiving XM traffic channel data.
3. Gives Feature Guide tips.
4. Receiving AcuraLink messages and displaying then in the navigation display.
5. Processing DTC (diagnostic trouble code) error messages from the PCM, the SRS and other systems and displaying them on the navigation display.
6. Sending DTC information to the AcuraLink servers using the client's cell phone (only if client has set up and enabled this option).

Service Application

1. Malfunction indicator lamp (MIL) explanation (from server message and vehicle message)
2. Service information message
3. Recall Information
4. Quick tips
5. Place to provide feedback/view cautions that were not available when vehicle was initially sold
6. Correction of address and full name that is registered
7. Real time traffic information
8. Maintenance information message
9. Feature guide (90 days)

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Self-diagnostic Function

Note. Only select DATA RESET from the XM (HIP) ECU screen when instructed. Selecting DATA RESET will clear the AcuraLink registration, and the AcuraLink service will reset to the factory default. If the vehicle was already registered for the AcuraLink service, it will have to be reactivated by calling Acura Client Services before all features will be available.

The AcuraLink control unit (XM receiver) has a self-diagnostic function. To run the self-diagnostic function, do the following

How to Enter the Self-diagnostic Function

Note. Always check for and repair any B-CAN or F-CAN DTCs before troubleshooting the AcuraLink system.

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1. Turn the ignition switch to ON (II).
2. Press the interface dial.
3. Press and hold the MAP/GUIDE, CANCEL, and MENU buttons at the same time for 3 seconds more, and the self-diagnosis begins.
4. Using interface dial, select the NAVI System from the Select Diagnosis Items menu. Press the interface dial. The display indicates NAVI System Link, and will perform a Navi connection check for each device. If a connection is faulty, the place where it is faulty will be indicated with NG (red color). If the XM (HIP) indicator is NG (red color), go to step 5.
5. Using the interface dial, select the Return from the Navi System Link. Press the interface dial.
6. Using the interface dial, select the XM (HIP) from the Select Diagnosis Items menu. Press the interface dial.
7. Using the interface dial, select the XM (HIP) System Link from the XM (HIP) menu. Press the interface dial. The display indicates XM (HIP) System Link, and will do an AcuraLink connection check for each device. If a connection is faulty, the place where it is faulty will be indicated with NG (red color).
8. When a red color is indicated, check the continuity between the XM receiver unit and the device indicated in red. RED COLOR INDICATE DEVICE CONDITION Red color indicate device Test condition Test: Desired result Possible cause if result is not obtained F-CAN XM receiver control unit connector A (20P) and Gauge control module connector A (12P) disconnected Check for continuity between the No. 6 terminal of XM receiver unit connector A (20P) and the No. 12 terminal of the Gauge control module connector A (12P): There should be continuity. An open in the wire Check for continuity between the No. 16 terminal of XM receiver unit connector A (20P) and the No. 6 terminal of the Gauge control module connector A (12P): There should be continuity. An open in the wire XM receiver control unit connector A (20P) and PCM connector A (49P) disconnected Check for continuity between the No. 6 terminal of XM receiver unit connector A (20P) and the No. 48 terminal of the PCM connector A (49P): There should be continuity. An open in the wire Check for continuity between the No. 16 terminal of XM receiver unit connector A (20P) and the No. 49 terminal of the PCM connector A (49P): There should be continuity. An open in the wire XM receiver control unit connector A (20P) and VSA control unit 46P connector disconnected Check for continuity between the No. 6 terminal of XM receiver unit connector A (20P) and the No. 18 terminal of the VSA control unit 46P connector: There should be continuity. An open in the wire Check for continuity between the No. 16 terminal of XM receiver unit connector A (20P) and the No. 17 terminal of the VSA control unit 46P connector: There should be continuity. An open in the wire XM receiver control unit connector A (20P) and TPMS control unit 20P connector disconnected Check for continuity between the No. 6 terminal of XM receiver unit connector A (20P) and the No. 1 terminal of the TPMS control unit 20P connector: There should be continuity. An open in the wire Check for continuity between the No. 16 terminal of XM receiver unit connector A (20P) and the No. 11 terminal of the TPMS control unit 20P connector): There should be continuity. An open in the wire XM receiver control unit connector A (20P) and SH-AWD control unit connector A (20P) disconnected Check for continuity between the No. 6 terminal of XM receiver unit connector A (20P) and the No. 10 terminal of the SH-AWD control unit connector A (20P): There should be continuity. An open in the wire Check for continuity between the No. 16 terminal of XM receiver unit connector A (20P) and the No. 20 terminal of the SH-AWD control unit connector A (20P): There should be continuity. An open in the wire XM receiver control unit connector A (20P) and SRS unit connector A (27P) disconnected Check for continuity between the No. 6 terminal of XM receiver unit connector A (20P) and the No. 11 terminal of the SRS unit connector A (27P): There should be continuity. An open in the wire Check for continuity between the No. 16 terminal of XM receiver unit connector A (20P) and the No. 12 terminal of the SRS unit connector A (27P): There should be continuity. An open in the wire XM receiver control unit connector A (20P) and active damper control unit connector B (14P) disconnected Check for continuity between the No. 6 terminal of XM receiver unit connector A (20P) and the No. 1 terminal of the active damper control unit connector B (14P): There should be continuity. An open in the wire Check for continuity between the No. 16 terminal of XM receiver unit connector A (20P) and the No. 8 terminal of the active damper control unit connector B (14P): There should be continuity. An open in the wire XM receiver control unit connector A (20P) and Yaw rate-lateral/ longitudinal acceleration sensor 4P connector disconnected Check for continuity between the No. 6 terminal of XM receiver unit connector A (20P) and the No. 3 terminal of the Yaw rate-lateral/longitudinal acceleration sensor 4P connector: There should be continuity. An open in the wire Check for continuity between the No. 16 terminal of XM receiver unit connector A (20P) and the Non terminal of the Yaw rate-lateral/longitudinal acceleration sensor 4P connector: There should be continuity. An open in the wire XM receiver control unit connector A (20P) and Steering angle sensor 5P connector disconnected Check for continuity between the No. 6 terminal of XM receiver unit connector A (20P) and the No. 4 terminal of the Steering angle sensor 5P connector: There should be continuity. An open in the wire Check for continuity between the No. 16 terminal of XM receiver unit connector A (20P) and the No. 2 terminal of the Steering angle sensor 5P connector: There should be continuity. An open in the wire XM receiver control unit connector A (20P), Gauge control module connector A (12P), PCM connector A (49P), VSA control unit 46P connector, TPMS control unit 20P connector, SH-AWD control unit connector A (20P), SRS unit connector A (27P), active damper control unit connector B (14P), Yaw rate-lateral/longitudinal acceleration sensor 4P connector, Steering angle sensor 5P connector disconnected Check for continuity between the No. 6, No. 16 terminals of XM receiver unit connector A (20P) and body ground: There should be no continuity. A short in the wire Check for continuity between the No. 1 and No. 6 terminals of XM receiver unit connector A (20P): There should be no continuity. A short in the wire Check for continuity between the No. 1 and No. 16 terminals of XM receiver unit connector A (20P): There should be no continuity. A short in the wire Gauge control module connector A (12P), PCM connector A (49P), VSA control unit 46P connector, TPMS control unit 20P connector, SH-AWD control unit connector A (20P), SRS unit connector A (27P), active damper control unit connector B (14P), Yaw rate-lateral/longitudinal acceleration sensor 4P connector. Steering angle sensor 5P connector disconnected Check for continuity between the No. 6, No. 16 terminals of XM receiver unit connector A (20P) and body ground: There should be no continuity. A short in the XM receiver unit XM receiver control unit connector A (20P), PCM connector A (49P), VSA control unit 46P connector, TPMS control unit 20P connector, SH-AWD control unit connector A (20P), SRS unit connector A (27P), active damper control unit connector B (14P), Yaw rate-lateral/longitudinal acceleration sensor 4P connector. Steering angle sensor 5P connector disconnected Check for continuity between the No. 6, No. 16 terminals of XM receiver unit connector A (20P) and body ground: There should be no continuity. A short in the Gauge control module XM receiver control unit connector A (20P), Gauge control module connector A (12P), VSA control unit 46P connector, TPMS control unit 20P connector, SH-AWD control unit connector A (20P), SRS unit connector A (27P), active damper control unit connector B (14P), Yaw rate-lateral/longitudinal acceleration sensor 4P connector, Steering angle sensor 5P connector disconnected Check for continuity between the No. 6, No. 16 terminals of XM receiver unit connector A (20P) and body ground: There should be no continuity. A short in the PCM XM receiver control unit connector A (20P), Gauge control module connector A (12P), PCM connector A (49P), TPMS control unit 20P connector, SH-AWD control unit connector A (20P), SRS unit connector A (27P), active damper control unit connector B (14P), Yaw rate-lateral/longitudinal acceleration sensor 4P connector. Steering angle sensor 5P connector disconnected Check for continuity between the No. 6, No. 16 terminals of XM receiver unit connector A (20P) and body ground: There should be no continuity. A short in the VSA control unit XM receiver control unit connector A (20P), Gauge control module connector A (12P), PCM connector A (49P), VSA control unit 46P connector, SH-AWD control unit connector A (20P), SRS unit connector A (27P), active damper control unit connector B (14P), Yaw rate-lateral/longitudinal acceleration sensor 4P connector, Steering angle sensor 5P connector disconnected Check for continuity between the No. 6, No. 16 terminals of XM receiver unit connector A (20P) and body ground: There should be no continuity. A short in the TPMS control unit XM receiver control unit connector A (20P), Gauge control module connector A (12P), PCM connector A (49P), VSA control unit 46P connector, TPMS control unit 20P connector, SRS unit connector A (27P), active damper control unit connector B (14P), Yaw rate-lateral/ longitudinal acceleration sensor 4P connector, Steering angle sensor 5P connector disconnected Check for continuity between the No. 6, No. 16 terminals of XM receiver unit connector A (20P) and body ground: There should be no continuity. A short in the SH-AWD control unit XM receiver control unit connector A (20P), Gauge control module connector A (12P), PCM connector A (49P), VSA control unit 46P connector, TPMS control unit 20P connector, SH-AWD control unit connector A (20P), active damper control unit connector B (14P), Yaw rate-lateral/longitudinal acceleration sensor 4P connector, Steering angle sensor 5P connector disconnected Check for continuity between the No. 6, No. 16 terminals of XM receiver unit connector A (20P) and body ground: There should be no continuity. A short in the SRS unit F-CAN XM receiver control unit connector A (20P), Gauge control module connector A (12P), PCM connector A (49P), VSA control unit 46P connector, TPMS control unit 20P connector, SH-AWD control unit connector A (20P), SRS unit connector A (27P), Yaw rate-lateral/ longitudinal acceleration sensor 4P connector, Steering angle sensor 5P connector disconnected Check for continuity between the No. 6, No. 16 terminals of XM receiver unit connector A (20P) and body ground: There should be no continuity. A short in the active damper control unit XM receiver control unit connector A (20P), Gauge control module connector A (12P), PCM connector A (49P), VSA control unit 46P connector, TPMS control unit 20P connector, SH-AWD control unit connector A (20P), SRS unit connector A (27P), active damper control unit connector B (14P), Steering angle sensor 5P connector disconnected Check for continuity between the No. 6, No. 16 terminals of XM receiver unit connector A (20P) and body ground: There should be no continuity. A short in the Yaw rate-lateral/longitudinal acceleration sensor XM receiver control unit connector A (20P), Gauge control module connector A (12P), PCM connector A (49P), VSA control unit 46P connector, TPMS control unit 20P connector, SH-AWD control unit connector A (20P), SRS unit connector A (27P), active damper control unit connector B (14P), Yaw rate-lateral/longitudinal acceleration sensor 4P connector disconnected Check for continuity between the No. 6, No. 16 terminals of XM receiver unit connector A (20P) and body ground: There should be no continuity. A short in the Steering angle sensor B-CAN XM receiver control unit connector B (16P) and MICU connector G (6P) disconnected Check for continuity between the No. 5 terminal of XM receiver unit connector B (16P) and the No. 1 terminal of the MICU connector G (6P): There should be continuity. An open in the wire XM receiver control unit connector B (16P) and door MPCS connector A (40P) disconnected Check for continuity between the No. 5 terminal of XM receiver unit connector B (16P) and the No. 28 terminal of the door MPCS connector A (40 P): There should be continuity. An open in the wire XM receiver control unit connector B (16P) and rear MICU connector B (34P) disconnected Check for continuity between the No. 5 terminal of XM receiver unit connector B (16P) and the No. 2 terminal of the rear MICU connector B (34P): There should be continuity. An open in the wire XM receiver control unit connector B (16P) and combination switch 8P connector disconnected Check for continuity between the No. 5 terminal of XM receiver unit connector B (16P) and the No. 4 terminal of the combination switch 8P connector: There should be continuity. An open in the wire XM receiver control unit connector B (16P) and relay control module connector E (14P) disconnected Check for continuity between the No. 5 terminal of XM receiver unit connector B (16P) and the No. 1 terminal of the relay control module connector E (14P): There should be continuity. An open in the wire XM receiver control unit connector B (16P) and power seat control unit connector B (40P) disconnected Check for continuity between the No. 5 terminal of XM receiver unit connector B (16P) and the No; 40 terminal of the power seat control unit connector B (40P): There should be continuity. An open in the wire XM receiver control unit connector B (16P) and immobilizer-keyless control unit 7P connector disconnected Check for continuity between the No. 5 terminal of XM receiver unit connector B (16P) and the No. 4 terminal of the immobilizer-keyless control unit 7P connector: There should be continuity. An open in the wire XM receiver control unit connector B (16P)and power tailgate control unit connector C (14P) disconnected Check for continuity between the No. 5 terminal of XM receiver unit connector B (16P) and the No. 7 terminal of the power tailgate control unit connector C (14P): There should be continuity. An open in the wire XM receiver control unit connector B (16P) and gauge control module connector A (12P) disconnected Check for continuity between the No. 5 terminal of XM receiver unit connector B (16P) and the Non terminal of the gauge control module connector A (12P): There should be continuity. An open in the wire XM receiver control unit connector B (16P) and HandsFreeLink control unit 28P connector disconnected Check for continuity between the No. 5 terminal of XM receiver unit connector B (16P) and the No. 19 terminal of the HandsFreeLink control unit 28P connector: There should be continuity. An open in the wire XM receiver control unit connector B (16P) and audio unit connector C (24P) disconnected Check for continuity between the No. 5 terminal of XM receiver unit connector B (16P) and the No. 23 terminal of the audio unit connector C (24P): There should be continuity. An open in the wire XM receiver control unit connector B (16P), MICU connector G (6P), door MPCS connector A (40P), rear MICU connector B (34P), combination switch 8P connector, relay control module connector (14P), power seat control unit connector B (40P), immobilizer-keyless control unit 7P connector, power tailgate control unit connector C (14P), gauge control module connector A (12P), HandsFreeLink control unit 28P connector, audio unit connector C (24P) disconnected Check for continuity between the No. 5 terminal of XM receiver unit connector B (16P) and body ground: There should be no continuity. A short in the wire XM receiver control unit connector B (16P), MICU connector G (6P), door MPCS connector A (40P), rear MICU connector B (34P), combination switch 8P connector, relay control module connector (14P), power seat control unit connector B (40P), immobilizer-keyless control unit 7P connector, power tailgate control unit connector C (14P), gauge control module connector A (12P), HandsFreeLink control unit 28P connector, audio unit connector C (24P) disconnected Check for continuity between the No. 5 terminal of XM receiver unit connector B (16P) and the No. 1 terminal of XM receiver unit connector A (20P) body ground: There should be no continuity. A short in the wire MICU connector G (6P), door MPCS connector A (40P), rear MICU connector B (34P), combination switch 8P connector, relay control module connector (14P), power seat control unit connector B (40P), immobilizer-keyless control unit 7P connector, power tailgate control unit connector C (14P), gauge control module connector A (12P), HandsFreeLink control unit 28P connector, audio unit connector C (24P) disconnected Check for continuity between the No. 5 terminal of XM receiver unit connector B (16P)and body ground: There should be no continuity. A short in the XM receiver control unit XM receiver control unit connector B (16P), door MPCS connector A (40P), rear MICU connector B (34P), combination switch 8P connector, relay control module connector (14P), power seat control unit connector B (40P), immobilizer-keyless control unit 7P connector, power tailgate control unit connector C (14P), gauge control module connector A (12P), HandsFreeLink control unit 28P connector, audio unit connector C (24P) disconnected Check for continuity between the No. 5 terminal of XM receiver unit connector B (16P)and body ground: There should be no continuity. A short in the MICU XM receiver control unit connector B (16P), MICU connector G (6P), rear MICU connector B (34P), combination switch 8P connector, relay control module connector (14P), power seat control unit connector B (40P), immobilizer-keyless control unit 7P connector, power tailgate control unit connector C (14P), gauge control module connector A (12P), HandsFreeLink control unit 28P connector, audio unit connector C (24P) disconnected Check for continuity between the No. 5 terminal of XM receiver unit connector B (16P) and body ground: There should be no continuity. A short in the door MPCS XM receiver control unit connector B (16P), MICU connector G (6P), door MPCS connector A (40P), combination switch 8P connector, relay control module connector (14P), power seat control unit connector B (40P), immobilizer-keyless control unit 7P connector, power tailgate control unit connector C (14P), gauge control module connector A (12P), HandsFreeLink control unit 28P connector, audio unit connector C (24P) disconnected Check for continuity between the No. 5 terminal of XM receiver unit connector B (16P)and body ground: There should be no continuity. A short in the rear MICU XM receiver control unit connector B (16P), MICU connector G (6P), door MPCS connector A (40P), rear MICU connector B (34P), relay control module connector (14P), power seat control unit connector B (40P), immobilizer-keyless control unit 7P connector, power tailgate control unit connector C (14P), gauge control module connector A (12P), HandsFreeLink control unit 28P connector, audio unit connector C (24P) disconnected Check for continuity between the No. 5 terminal of XM receiver unit connector B (16P) and body ground: There should be no continuity. A short in the combination switch control unit XM receiver control unit connector B (16P), MICU connector G (6P), door MPCS connector A (40P), rear MICU connector B (34P), combination switch 8P connector, power seat control unit connector B (40P), immobilizer-keyless control unit 7P connector, power tailgate control unit connector C (14P), gauge control module connector A (12P), HandsFreeLink control unit 28P connector, audio unit connector C (24P) disconnected Check for continuity between the No. 5 terminal of XM receiver unit connector B (16P)and body ground: There should be no continuity. A short in the relay control module XM receiver control unit connector B (16P), MICU connector G (6P), door MPCS connector A (40P), rear MICU connector B (34P), combination switch 8P connector, relay control module connector (14P), immobilizer-keyless control unit 7P connector, power tailgate control unit connector C (14P), gauge control module connector A (12P), HandsFreeLink control unit 28P connector, audio unit connector C (24P) disconnected Check for continuity between the No. 5 terminal of XM receiver unit connector B (16P) and body ground: There should be no continuity. A short in the power seat control unit XM receiver control unit connector B (16P), MICU connector G (6P), door MPCS connector A (40P), rear MICU connector B (34P), combination switch 8P connector, relay control module connector (14P), power seat control unit connector B (40P), power tailgate control unit connector C (14P), gauge control module connector A (12P), HandsFreeLink control unit 28P connector, audio unit connector C (24P) disconnected Check for continuity between the No. 5 terminal of XM receiver unit connector B (16P) and body ground: There should be no continuity. A short in the immobilizer keyless control unit XM receiver control unit connector B (16P), MICU connector G (6P), door MPCS connector A (40P), rear MICU connector B (34P), combination switch 8P connector, relay control module connector (14P), power seat control unit connector B (40P), immobilizer-keyless control unit 7P connector, gauge control module connector A (12P), HandsFreeLink control unit 28P connector, audio unit connector C (24P) disconnected Check for continuity between the No. 5 terminal of XM receiver unit connector B (16P)and body ground: There should be no continuity. A short in the power tailgate control unit XM receiver control unit connector B (16P), MICU connector G (6P), door MPCS connector A (40P), rear MICU connector B (34P), combination switch 8P connector, relay control module connector (HP), power seat control unit connector B (40P), immobilizer-keyless control unit 7P connector, power tailgate control unit connector C (14P), HandsFreeLink control unit 28P connector, audio unit connector C (24P) disconnected Check for continuity between the No. 5 terminal of XM receiver unit connector B (16P)and body ground: There should be no continuity. A short in the gauge control module XM receiver control unit connector B (16P), MICU connector G (6P), door MPCS connector A (40P), rear MICU connector B (34P), combination switch 8P connector, relay control module connector (14P), power seat control unit connector B (40P), immobilizer-keyless control unit 7P connector, power tailgate control unit connector C (14P), gauge control module connector A (12P), audio unit connector C (24P) disconnected Check for continuity between the No. 5 terminal of XM receiver unit connector B (16P) and body ground: There should be no continuity. A short in the HandsFreeLink control unit XM receiver control unit connector B (16P), MICU connector G (6P), door MPCS connector A (40P), rear MICU connector B (34P), combination switch 8P connector, relay control module connector (14P), power seat control unit connector B (40P), immobilizer-keyless control unit 7P connector, power tailgate control unit connector C (14P), gauge control module connector A (12P), HandsFreeLink control unit 28P connector disconnected Check for continuity between the No. 5 terminal of XM receiver unit connector B (16P) and body ground: There should be no continuity. A short in the audio unit Navi XM receiver control unit connector A (20P) and navigation unit connector F (5P) disconnected Check for continuity between the No. 3 terminal of XM receiver unit connector A (20P) and the No. 1 terminal of the navigation unit connector F (5P): There should be continuity. An open in the wire Check for continuity between the No. 13 terminal of XM receiver unit connector A (20P) and the Non terminal of the navigation unit connector F (5P): There should be continuity. An open in the wire Check for continuity between the No. 4 terminal of XM receiver unit connector A (20P) and the No. 3 terminal of the navigation unit connector F (5P): There should be continuity. An open in the wire Check for continuity between the No. 14 terminal of XM receiver unit connector A (20P) and the No. 4 terminal of the navigation unit connector F (5P): There should be continuity. An open in the wire Check for continuity between the No. 3 terminal of XM receiver unit connector A (20P) and body ground: There should be no continuity. A short in the wire Check for continuity between the No. 1 and No. 3 terminals of XM receiver unit connector A (20P): There should be no continuity. A short in the wire Check for continuity between the No. 13 terminal of XM receiver unit connector A (20P) and body ground: There should be no continuity. A short in the wire Check for continuity between the No. 1 and No. 13 terminals of XM receiver unit connector A (20P): There should be no continuity. A short in the wire Check for continuity between the No. 4 terminal of XM receiver unit connector A (20P) and body ground: There should be no continuity. A short in the wire Check for continuity between the No. 1 and No. 4 terminals of XM receiver unit connector A (20P): There should be no continuity. A short in the wire Check for continuity between the No. 14 terminal of XM receiver unit connector A (20P) and body ground: There should be no continuity. A short in the wire Check for continuity between the No. 1 and No. 14 terminals of XM receiver unit connector A (20P): There should be no continuity. A short in the wire Navigation unit connector F (5P) disconnected Check for continuity between the No. 3 terminal of XM receiver unit connector A (20P) and body ground: There should be no continuity. A short in the XM receiver unit Check for continuity between the No. 13 terminal of XM receiver unit connector A (20P) and body ground: There should be no continuity. A short in the XM receiver unit Check for continuity between the Non terminal of XM receiver unit connector A (20P) and body ground: There should be no continuity. A short in the XM receiver unit Check for continuity between the No. 14 terminal of XM receiver unit connector A (20P) and body ground: There should be no continuity. A short in the XM receiver unit XM receiver control unit connector A (20P) disconnected Check for continuity between the No. 3 terminal of XM receiver unit connector A (20P) and body ground: There should be no continuity. A short in the navigation unit Check for continuity between the No. 13 terminal of XM receiver unit connector A (20P) and body ground: There should be no continuity. A short in the navigation unit Check for continuity between the No. 4 terminal of XM receiver unit connector A (20P) and body ground: There should be no continuity. A short in the navigation unit Check for continuity between the No. 14 terminal of XM receiver unit connector A (20P) and body ground: There should be no continuity. A short in the navigation unit HFL XM receiver control unit connector B (16P) and HandsFreeLink control unit 28P connector disconnected Check for continuity between the No. 8 terminal of XM receiver unit connector B (16P) and the No. 22 terminal of the HandsFreeLink control unit 28P connector: There should be continuity. An open in the wire Check for continuity between the No. 16 terminal of XM receiver unit connector B (16P) and the No. 23 terminal of the HandsFreeLink control unit 28P connector: There should be continuity. An open in the wire Check for continuity between the No. 7 terminal of XM receiver unit connector B (16P) and the No. 9 terminal of the HandsFreeLink control unit 28P connector: There should be continuity. An open in the wire Check for continuity between the No. 15 terminal of XM receiver unit connector B (16P) and the No. 8 terminal of the HandsFreeLink control unit 28P connector: There should be continuity. An open in the wire Check for continuity between the No. 8 terminal of XM receiver unit connector B (16P) and body ground: There should be no continuity. A short in the wire Check for continuity between the No. 1 terminal of XM receiver unit connector A (20P) and the No. 8 terminal of the XM receiver unit connector B (16P): There should be no continuity. A short in the wire Check for continuity between the No. 16 terminal of XM receiver unit connector B (16P) and body ground: There should be no continuity. A short in the wire Check for continuity between the No. 1 terminal of XM receiver unit connector A (20P) and the No. 16 terminal of the XM receiver unit connector B (16P): There should be no continuity. A short in the wire Check for continuity between the No. 7 terminal of XM receiver unit connector B (16P) and body ground: There should be no continuity. A short in the wire Check for continuity between the No. 1 terminal of XM receiver unit connector A (20P) and the No. 7 terminal of the XM receiver unit connector B (16P): There should be no continuity. A short in the wire Check for continuity between the No. 15 terminal of XM receiver unit connector B (16P)and body ground: There should be no continuity. A short in the wire Check for continuity between the No. 1 terminal of XM receiver unit connector A (20P) and the No. 15 terminal of the XM receiver unit connector B (16P): There should be no continuity. A short in the wire HandsFreeLink control unit 28P connector disconnected Check for continuity between the No. 8 terminal of XM receiver unit connector B (16P)and body ground: There should be no continuity. A short in the XM receiver unit Check for continuity between the No. 16 terminal of XM receiver unit connector B (16P) and body ground: There should be no continuity. A short in the XM receiver unit Check for continuity between the No. 7 terminal of XM receiver unit connector B (16P) and body ground: There should be no continuity. A short in the XM receiver unit Check for continuity between the No. 15 terminal of XM receiver unit connector B(16P) and body ground: There should be no continuity. A short in the XM receiver unit XM receiver control unit connector A (20P) disconnected Check for continuity between the No. 8 terminal of XM receiver unit connector B (16P) and body ground: There should be no continuity. A short in the HandsFreeLink control unit Check for continuity between the No. 16 terminal of XM receiver unit connector B (16P) and body ground: There should be no continuity. A short in the HandsFreeLink control unit Check for continuity between the No. 7 terminal of XM receiver unit connector B (16P) and body ground: There should be no continuity. A short in the HandsFreeLink control unit Check for continuity between the No. 15 terminal of XM receiver unit connector B (16P) and body ground: There should be no continuity. A short in the HandsFreeLink control unit Audio XM receiver control unit connector A (20P) and audio unit connector D (14P) disconnected Check for continuity between the No. 7 terminal of XM receiver unit connector A (20P) and the No. 9 terminal of the audio unit connector D (14P): There should be continuity. An open in the wire Check for continuity between the No. 17 terminal of XM receiver unit connector A (20P) and the No. 10 terminal of the audio unit connector D (14P): There should be continuity. An open in the wire Check for continuity between the No. 7 terminal of XM receiver unit connector A (20P) and body ground: There should be no continuity. A short in the wire Check for continuity between the No. 1 and No. 7 terminals of XM receiver unit connector A (20P): There should be no continuity. A short in the wire Check for continuity between the No. 17 terminal of XM receiver unit connector A (20P) and body ground: There should be no continuity. A short in the wire Check for continuity between the No. 1 and No. 17 terminals of XM receiver unit connector A (20P): There should be no continuity. A short in the wire Audio unit connector D (14P) disconnected Check for continuity between the No. 7 terminal of XM receiver unit connector A (20P) and body ground: There should be no continuity. A short in the XM receiver unit Check for continuity between the No. 17 terminal of XM receiver unit connector A (20P) and body ground: There should be no continuity. A short in the XM receiver unit XM receiver control unit connector A (20P) disconnected Check for continuity between the No. 7 terminal of XM receiver unit connector A (20P) and body ground: There should be no continuity. A short in the audio unit Check for continuity between the No. 17 terminal of XM receiver unit connector A (20P) and body ground: There should be no continuity. A short in the audio unit NOTE: If the XM antenna connection condition is faulty, XM ANTENNA is indicated on the audio-HVAC sub display-clock.
9. If the indication does not go away, confirm DTCs, and refer to the relevant system troubleshooting and input tests.

Canceling the Self-diagnostic Function

1. Use the interface dial to, select the Exit Diag. Press the interface dial to cancel the self-diagnostic function.

Note. Check the vehicle battery condition first.

1. Connect the HDS to the DLC.
2. Turn the ignition switch to ON (II).
3. Check for DTCs with the HDS and DTC log data in the navigation system diagnostic mode (see «SYSTEM DIAGNOSTIC MODE»(/acura/mdx/ii-2006-2010/remont/navigation-system/#navigation-system) ). Is DTC B2202 indicated with HDS and on the navigation display? YES - Intermittent failure. The system is OK at this time. Check for poor connections or loose terminals at the AcuraLink control unit (XM receiver). NO - Check for poor connections or loose terminals at the AcuraLink control unit (XM receiver). If all connections are OK, replace the AcuraLink control unit (XM receiver) (see «ACURALINK CONTROL UNIT (XM RECEIVER) REMOVAL/INSTALLATION»(/acura/mdx/ii-2006-2010/remont/entertainment-systems/#audio-system__acuralink-control-unit-xm-receiver-removalinstallation) ).

DTC B2204: B-CAN Communication Line Error

Note. If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ). Check the vehicle battery condition first.

Scheme 40

1. Connect the HDS to the DLC.
2. Turn the ignition switch to ON (II).
3. Check for DTCs with the HDS and DTC log data in the navigation system diagnostic mode (see «SYSTEM DIAGNOSTIC MODE»(/acura/mdx/ii-2006-2010/remont/navigation-system/#navigation-system) ). Is DTC B2204 indicated with HDS and on the navigation display? YES - Go to step 4. NO - Intermittent failure. B-CAN communication line is OK at this time. Check for poor connections or loose terminals at the AcuraLink control unit (XM receiver).
4. Turn the ignition switch to LOCK (0).
5. Disconnect the AcuraLink control unit (XM receiver) connector B (16P) and gauge control module connector A (12P).
6. Check for continuity between the AcuraLink control unit (XM receiver) connector B (16P) No. 5 terminal and gauge control module connector A (12P) No. 5 terminal. Is there continuity? YES - Check for poor connections or loose terminals at the AcuraLink control unit (XM receiver). If all connections are OK, replace the AcuraLink control unit (XM receiver) (see «ACURALINK CONTROL UNIT (XM RECEIVER) REMOVAL/INSTALLATION»(/acura/mdx/ii-2006-2010/remont/entertainment-systems/#audio-system__acuralink-control-unit-xm-receiver-removalinstallation) ). NO - Repair open in the wire between AcuraLink control unit (XM receiver) and the gauge control module.

DTC B2205: F-CAN Communication Line Error

Note. If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ). Check the vehicle battery condition first.

Scheme 41

1. Connect the HDS to the DLC.
2. Turn the ignition switch to ON (II).
3. Check for DTCs with the HDS and DTC log data in the navigation system diagnostic mode (see «SYSTEM DIAGNOSTIC MODE»(/acura/mdx/ii-2006-2010/remont/navigation-system/#navigation-system) ). Is DTC B2205 indicated with HDS and on the navigation display? YES - Go to step 4. NO - Intermittent failure. F-CAN communication line is OK at this time. Check for poor connections or loose terminals at the AcuraLink control unit (XM receiver).
4. Turn the ignition switch to LOCK (0).
5. Disconnect the AcuraLink control unit (XM receiver) connector B (16P) and gauge control module connector A (12P).
6. Check for continuity between the AcuraLink control unit (XM receiver) connector B (16P) No. 6, No. 16 terminals and gauge control module connector A (12P) No. 6, No. 12 terminals. Is there continuity? YES - Check for poor connections or loose terminals at the AcuraLink control unit (XM receiver). If all connections are OK, 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 (see «ACURALINK CONTROL UNIT (XM RECEIVER) REMOVAL/INSTALLATION»(/acura/mdx/ii-2006-2010/remont/entertainment-systems/#audio-system__acuralink-control-unit-xm-receiver-removalinstallation) ). NO - Repair open in the wire between AcuraLink control unit (XM receiver) and the gauge control module.

Note. Check the vehicle battery condition first.

Scheme 42

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Scheme 45

Scheme 46

Scheme 47

1. Connect the HDS to the DLC.
2. Clear the DTC with the HDS.
3. Turn the ignition switch to LOCK (0), then turn it ON (II) and wait 30 seconds or more.
4. Check for DTCs with the HDS. Is DTC B2207, B2208 indicated? YES - Check the battery condition (see «BATTERY TEST»(/acura/mdx/ii-2006-2010/remont/body-electrical/#battery) ). If the system OK, replace the AcuraLink control unit (XM receiver). NO - If only B2207 is indicated, go to step 5. If only B2208 is indicated, refer to the «DTC B2208: HandsFreeLink Control Unit Lost Communication with AcuraLink Control Unit»(/acura/mdx/ii-2006-2010/remont/entertainment-systems/#acuralink) .
5. Turn the ignition switch to LOCK (0).
6. Disconnect the AcuraLink control unit (XM receiver) connector A (20P) and navigation unit connector F (5P).
7. Check for continuity between the following terminals of the AcuraLink control unit (XM receiver) connector A (20P) and navigation unit connector F (5P) according to te table. CONNECTOR TERMINAL REFERENCE AcuraLink control unit (XM receiver) connector A (20P) Navigation unit connector F(5P) Wire color A3 F1 WHT A4 F3 GRIM A13 F2 RED A14 F4 BLK A15 F5 BRN Is there continuity? YES - Go to Step 8. NO - Repair open in the wire(s) between AcuraLink control unit (XM receiver) and the navigation unit.
8. Check for continuity between body ground and AcuraLink control unit (XM receiver) connector A (20P) No. 3,4,13 and 14 terminals individually. Is there continuity? YES - Repair short to body ground in the wire(s) between the AcuraLink control unit (XM receiver) and the navigation unit. NO - Go to Step 9.
9. Check for continuity between the terminals of AcuraLink control unit (XM receiver) connector A (20P) as follows. CONNECTOR TERMINAL REFERENCE From terminal To terminals A3 A4, A13, A14, A15 A4 A13, A14, A15 A13 A14, A15 A14 A15 Is there continuity between any of the terminals? YES - Repair short in the wire(s) between the AcuraLink control unit (XM receiver) and the navigation unit (replace the appropriate shielded harness). NO - Go to Step 10.
10. Turn the ignition switch to ON (II), and measure the same terminals for voltage. Is there any voltage? YES - Repair short to power in the wire(s) between the AcuraLink control unit (XM receiver) and the navigation unit. NO - Go to Step 11.
11. Turn the ignition switch to LOCK (0).
12. Reconnect the Acuralink control unit(XM receiver) connector A (20P).
13. Measure the resistance between AcuraLink control unit (XM receiver) connector A (20P) No. 3, No. 4, and No. 13, No. 14 terminals. Is there less than about 100k ohms? YES - AcuraLink control unit (XM receiver) is faulty, 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 (see «ACURALINK CONTROL UNIT (XM RECEIVER) REMOVAL/INSTALLATION»(/acura/mdx/ii-2006-2010/remont/entertainment-systems/#audio-system__acuralink-control-unit-xm-receiver-removalinstallation) ). NO - Go to Step 15 .
14. Reconnect the navigation unit connector F (5P).
15. Turn the ignition switch to ON (II).
16. Measure the voltage between the body ground and the AcuraLink control unit (XM receiver) connector A (20P) No. 3, No. 4 terminals individually. Is there less than about 3.5V? YES - AcuraLink control unit (XM receiver) is faulty, 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 (see «ACURALINK CONTROL UNIT (XM RECEIVER) REMOVAL/INSTALLATION»(/acura/mdx/ii-2006-2010/remont/entertainment-systems/#audio-system__acuralink-control-unit-xm-receiver-removalinstallation) ). NO - Navigation unit is faulty, replace the navigation unit.

Note. Check the vehicle battery condition first.

Scheme 48

Scheme 49

Scheme 50

Scheme 51

Scheme 52

Scheme 53

1. Connect the HDS to the DLC.
2. Clear the DTC with the HDS.
3. Turn the ignition switch to LOCK (0), then turn it ON (II) and wait 30 seconds or more.
4. Check for DTC with the HDS. Is DTC B2207, B2208 indicated? YES - Check the battery condition (see «BATTERY TEST»(/acura/mdx/ii-2006-2010/remont/body-electrical/#battery) ). If the system OK, replace the AcuraLink control unit (XM receiver). NO - If only B2208 is indicated, go to step 5. If only B2207 is indicated, refer to the «DTC B2207: Navigation Unit Lost Communication with AcuraLink Control Unit»(/acura/mdx/ii-2006-2010/remont/entertainment-systems/#acuralink) .
5. Turn the ignition switch to LOCK (0).
6. Disconnect the AcuraLink control unit (XM receiver) connector B (16P) and HandsFreeLink control unit 28P connector.
7. Check for continuity between the following terminals of the AcuraLink control unit (XM receiver) connector B (16P) and HandsFreeLink control unit 28P connector according to the table. CONNECTOR TERMINAL REFERENCE AcuraLink control unit (XM receiver) connector B (16P) HandsFreeLink control unit 28P connector Wire color B6 No. 24 BRN B7 No. 9 GRN B8 No. 22 RED B15 No. 8 BLK B16 No. 23 WHT Is there continuity? YES - Go to Step 8. NO - Repair open in the wire(s) between AcuraLink control unit (XM receiver) and the HandsFreeLink control unit.
8. Check for continuity between body ground and AcuraLink control unit (XM receiver) connector B (16P) No. 7, 8, 15 and 16 terminals individually. Is there continuity? YES - Repair short to body ground in the wire(s) between the AcuraLink control unit (XM receiver) and the HandsFreeLink control unit. NO - Go to Step 9.
9. Check for continuity between the terminals of AcuraLink control unit (XM receiver) connector B (16P) as follows. CONNECTOR TERMINAL REFERENCE From terminal To terminals B7 B8, B15, B16, B6 B8 B15, B16, B6 B15 B16, B6 B16 B6 Is there continuity between any of the terminals? YES - Repair short in the wire(s) between the AcuraLink control unit (XM receiver) and the HandsFreeLink control unit (replace the appropriate shield harness). NO - Go to Step 10.
10. Turn the ignition switch to ON (II) and check the same terminals for voltage. Is there any voltage? YES - Repair short to power in the wire(s) between the AcuraLink control unit (XM receiver) and the HandsFreeLink control unit. NO - Go to Step 11.
11. Turn the ignition switch to LOCK(0).
12. Reconnect the AcuraLink control unit (XM receiver) connector B (16P).
13. Measure the resistance between AcuraLink control unit (XM receiver) connector B (16P) No. 7, No. 8, and No. 15, No. 16 terminals. Is there less than about 100k ohms? YES - AcuraLink control unit (XM receiver) is faulty, replace the AcuraLink control unit (XM receiver). NO - Go to Step 14.
14. Reconnect the HandsFreeLink control unit 22P connector.
15. Turn the ignition switch to ON (II).
16. Measure the voltage between the body ground and the AcuraLink control unit (XM receiver) connector B (16P) No. 7, No. 8 terminals individually. Is there less than about 3.5V? YES - AcuraLink control unit (XM receiver) is faulty, 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 (see «ACURALINK CONTROL UNIT (XM RECEIVER) REMOVAL/INSTALLATION»(/acura/mdx/ii-2006-2010/remont/entertainment-systems/#audio-system__acuralink-control-unit-xm-receiver-removalinstallation) ). NO - HandsFreeLink control unit is faulty, replace the HandsFreeLink control unit.

Note. Check the vehicle battery condition first.

1. Connect the HDS to the DLC.
2. Clear the DTC with the HDS.
3. Turn the ignition switch to LOCK (0), then turn it ON (II) and wait 30 seconds or more.
4. Check for DTC with the HDS. Is DTC B2209 indicated? YES - AcuraLink control unit (XM receiver) is faulty, replace the AcuraLink control unit (XM receiver). NO - Intermittent failure, AcuraLink control unit (XM receiver) is OK at this time.

DTC B2240: XM Antenna Error

Note. Check the vehicle battery condition first.

Scheme 54

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Scheme 56

Scheme 57

1. Connect the HDS to the DLC.
2. Clear the DTC with the HDS.
3. Turn the ignition switch to LOCK (0), then turn it ON (II) 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, XM antenna is OK at this time. Check for poor connections or loose terminals at the AculaLink control unit(XM receiver) and 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 - Go to Step 6. NO - Reconnect the connector, and recheck the DTC.
6. Turn the ignition switch to LOCK (0).
7. Disconnect the AcuraLink control unit(XM receiver) connector C (2P).
8. Turn the ignition switch to ON (II).
9. Measure the voltage between the body ground and the AcuraLink control unit (XM receiver) terminal C (2P) No. 1 terminal. Is there about 4.5 V? YES - Go to Step 10. NO - AcuraLink control unit (XM receiver) is faulty, 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 (see «ACURALINK CONTROL UNIT (XM RECEIVER) REMOVAL/INSTALLATION»(/acura/mdx/ii-2006-2010/remont/entertainment-systems/#audio-system__acuralink-control-unit-xm-receiver-removalinstallation) ).
10. Turn the ignition switch to LOCK (0).
11. Disconnect the XM antenna 2P connector.
12. Check for continuity between body ground and XM antenna 2P connector No. 1 terminal. Is there continuity? YES - Replace the antenna lead between the AcuraLink control unit (XM receiver) and XM antenna. NO - Go to Step 13.
13. Check for continuity between XM antenna 2P connector terminal No. 1 and No. 2 (outside of the lead). Is there continuity? YES - Replace the antenna lead between the AcuraLink control unit (XM receiver) and XM antenna. NO - Go to Step 14.
14. Reconnect the AcuraLink control unit C(2P) connector.
15. Turn the ignition switch to ON (II).
16. Measure the voltage between the body ground and the XM antenna 2P connector No. 1 terminal. Is there about 4.5V? YES - XM antenna is faulty, replace the XM antenna. NO - Replace the antenna lead between the AcuraLink control unit (XM receiver) and the XM antenna.

Note. In order for the AcuraLink service to work, the client must have an activated account with XM (receives all channels). Check the vehicle battery condition first. If you can only tune to channel 000,001,174, and 247, make sure that the audio unit is set to the channel mode (see owner's manual). If it is set to the channel mode, call XM radio customer support and check the account activation status.

Scheme 58

Scheme 59

Scheme 60

1. Call Acura Client Services and verify the unit status. Request ACS to send an activation signal to the vehicle. Park the vehicle outside, and let the vehicle idle for about an hour. Does the AcuraLink service application work? YES - The vehicle is OK at this time. NO - Go to step 2.
2. Check the No. 21 (7.5 A) fuse and No. 32 (10 A) fuse in the under-dash fuse/relay box. Are the fuses OK? YES - Go to step 3. NO - Replace the fuse(s), and recheck.
3. Turn the ignition switch to ACC (I).
4. Measure the voltage between the No. 2 terminal of the AcuraLink control unit (XM receiver) connector A (20P) and body ground. Is there battery voltage? YES - Go to step 5. NO - Repair open in the wire(s) between the AcuraLink control unit and the No. 32 (10 A) fuse in the under-dash fuse/relay box.
5. Turn the ignition switch to ON (II).
6. Measure the voltage between the No. 12 terminal of the AcuraLink control unit (XM receiver) connector A (20P) and body ground. Is there battery voltage? YES - Go to step 7. NO - Repair open in the wire(s) between the AcuraLink control unit (XM receiver) and the No. 21 (7.5 A) fuse in the under-dash fuse/relay box.
7. Turn the ignition switch to LOCK (0).
8. Measure the voltage between the No. 11 terminal of the AcuraLink control unit(XM receiver) connector A (20P) and body ground. Is there less than 0.5 V? YES - Check for loose wires or poor connections at the AcuraLink control unit (XM receiver) connector A (20P). If the connections are good, substitute a known-good AcuraLink control unit (XM receiver), and recheck. If the symptom goes away, 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 (see «ACURALINK CONTROL UNIT (XM RECEIVER) REMOVAL/INSTALLATION»(/acura/mdx/ii-2006-2010/remont/entertainment-systems/#audio-system__acuralink-control-unit-xm-receiver-removalinstallation) ). NO - Check for an open in the wire between the AcuraLink control unit (XM receiver) and body ground. If the wire is OK, check for poor ground at G606 (see «FLOOR WIRE HARNESS (RIGHT BRANCH)»(/acura/mdx/ii-2006-2010/remont/body-electrical/#connectors-and-harnesses__floor-wire-harness-right-branch) ).

See also:
• DLC CIRCUIT TROUBLESHOOTING
• BATTERY TEST
• TRIM REMOVAL/INSTALLATION - REAR SIDE AREA
• SYMPTOM TROUBLESHOOTING
• ACURALINK CONTROL UNIT (XM RECEIVER) REMOVAL/INSTALLATION
• TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A
• FLOOR WIRE HARNESS (RIGHT BRANCH)
• DTC TROUBLESHOOTING