Audio System Acura RDX I

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Symptom Troubleshooting Index

SYMPTOM TROUBLESHOOTING INDEX

Overview

There are two audio systems available for the RDX

1. The premium audio system is on vehicles without navigation. It includes six speakers, a subwoofer, and an XM receiver.
2. The ELS audio system is available on vehicles with navigation. It includes surround sound with nine speakers (the same six that are available on the premium audio system, plus one in each rear door and in the middle of the front dash), a subwoofer, and AcuraLink (HIP/XM receiver).

The audio unit acts as the processor for all audio functions. You can select the audio functions from the front panel, the audio remote (on steering wheel), or by using the navigation voice control system. The audio display provides the current front and rear audio status. For vehicles with the navigation option, additional audio information is available by touching the audio button. (See the owner's manual for more details.)

Each audio component passes its audio signal to the audio unit. In addition, it communicates with the audio unit via the GA-Net bus. Any open connection in this circuit will cause audio and navigation functions to appear inoperative.

The audio unit has a built-in EEPROM (electrically erasable programmable read-only memory). This memory holds the audio preset data (AM/FM radio frequency, sound settings, etc.) even when the battery is disconnected.

With the ELS and the premium audio system, an audio amplifier unit powers the speakers.

The audio systems are equipped with speed-sensitive volume compensation (SVC). The audio unit receives the vehicle speed pulse (VSP) from the PCM. The system processes the speed input and increases the navigation or audio system volume level as the vehicle speed increases to compensate for the various interior noise that occurs at higher speeds. When the vehicle slows down, the volume returns to its normal level. The SVC has four settings: SVC OFF, LOW, MID and HIGH that can be adjusted using the audio unit. The SVC comes from the factory with the MID set as the default (See the owner's manual for more details.)

The 6DVD (6CD) changer output can be directed to the audio unit.

The XM radio plays through the audio unit.

A security signal is daisy-chained between the audio and navigation components and integrated into the vehicle's security system.

The optional navigation system provides voice control for the audio, the XM, and the CD player. Voice control commands are communicated through the GA-Net (audio unit). When using the TALK/BACK or route guidance (RG), the center speaker is muted and you hear the navigation instructions through the front speakers. When using the HFL/ AcuraLink, the center speaker, the rear speakers, and the subwoofer are muted and the front speakers give the telephone sound. When using the HFL/AcuraLink and RG (Route Guidance) or the voice response, the center speaker, the rear speakers, and the subwoofer are muted and you hear the telephone sound and navigation instructions through the front speakers. Muting commands are passed on the GA-Net bus. For more information, see the navigation section. The outline of the audio interruption function is shown in the following table.

AUDIO INTERRUPTION FUNCTION OUTLINE CHART

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Note. All items may not apply to this vehicle. See the owner's manual for more information.

Audio Glossary

AUDIO GLOSSARY

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Audio Unit Connector A (17P)

AUDIO UNIT CONNECTOR A (17P) TERMINAL REFERENCE

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Audio Unit Connector B (14P)

Audio Unit Connector B (14P) TERMINAL REFERENCE

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Audio Unit Connector C (28P)

Audio Unit Connector C (28P) TERMINAL REFERENCE

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Audio Unit Connector D (32P)

Audio Unit Connector D (32P) TERMINAL REFERENCE

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Audio Unit Connector E (3P)

Audio Unit Connector E (3P) TERMINAL REFERENCE

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Audio Unit Connector A (17P)

Audio Unit Connector A (17P) TERMINAL REFERENCE

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Audio Unit Connector B (14P)

Audio Unit Connector B (14P) TERMINAL REFERENCE

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Audio Unit Connector C (28P)

Audio Unit Connector C (28P) TERMINAL REFERENCE

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Audio Unit Connector D (32P)

Audio Unit Connector D (32P) TERMINAL REFERENCE

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Audio Unit Connector E (3P)

Audio Unit Connector E (3P) TERMINAL REFERENCE

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Stereo Amplifier Connector A (18P)

Stereo Amplifier Connector A (18P) TERMINAL REFERENCE

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Stereo Amplifier Connector B (28P)

Stereo Amplifier Connector B (28P) TERMINAL REFERENCE

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Stereo Amplifier Connector A (18P)

Stereo Amplifier Connector A (18P) TERMINAL REFERENCE

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Stereo Amplifier Connector B (24P)

Stereo Amplifier Connector B (24P) TERMINAL REFERENCE

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XM Receiver Connector A (14P)

XM Receiver Connector A (14P) TERMINAL REFERENCE

XM Receiver Connector B (2P)

XM Receiver Connector B (2P) TERMINAL REFERENCE

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Audio Switch Panel Connector A (20P)

Audio Switch Panel Connector A (20P) TERMINAL REFERENCE

Audio Switch Panel Connector B (5P)

Audio Switch Panel Connector B (5P) TERMINAL REFERENCE

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Audio-HVAC Subdisplay Unit 12P Connector

Audio-HVAC Subdisplay Unit 12P Connector TERMINAL REFERENCE

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Audio-HVAC Display Unit 12P Connector

Audio-HVAC Display Unit 12P Connector TERMINAL REFERENCE

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Self-diagnostic Function

The audio system has a self-diagnostic function. To run the self-diagnostic function, do the following

Note. Not all self-diagnostic functions appear on all models. There may be other self-diagnostic functions that are for factory use only.

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1. Turn the ignition switch to ON (II). Turn the audio unit off.
2. Push and hold the No. 1 and No. 6 buttons. While holding the buttons, push the PWR knob to on. Release the buttons and the self-diagnostic function begins. With ELS audio system With premium audio system
3. By pressing a preset button, the input will trigger the diagnostic mode that is assigned to that preset switch. No. 3 button Entire LCD lighting/light-out mode: Turns on/off the entire LCD to show the presence or absence of an LCD segment failure. No. 4 button Illumination level indication mode: Indicates the duty cycle for the illumination dimmer control of the gauge assembly. Gauge dimmer control values: Headlights off: OFF Headlights on: 01 (max low) through 22 (max high) No. 5 button Vehicle speed pulse indication mode: Indicates the Vehicle speed pulse. AM/FM or FM button (Push and hold 5 sec.) Reception level check mode: Indicates the reception level. When entering the reception level check mode, the AM/ FM button or FM button is used to change the main/sub antenna.
4. The self-diagnostic function ends when you turn the audio unit off, or turn the ignition switch to LOCK (0). NOTE: Any other diagnostic screens shown are for factory use only.

How to Obtain the Audio Unit Serial Number

Note. This procedure can only be done when the power has been disconnected from the audio unit, and the audio unit displays CODE. With the audio unit switched off, push and hold the preset buttons No. 1, No. 6 and the PWR knob, then release. The audio unit displays the eight digit serial number (example 12345678). Use the eight digit serial number when using the interactive network (iN) to get the 5 digit anti-theft code.

Serial Number

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Display Specifications

LCD lighting mode (press No. 3 button)

This diagnostic screen checks for segments that may be dead (off).

The entire display must appear. If there are dead segments, replace the applicable display unit.

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LCD lights-outs mode (press No. 3 button)

This diagnostic screen checks for segments that may be stuck on.

The entire display must black. If the segments are stuck on, replace the applicable display unit.

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Illumination level (for the gauge illumination) indication (press No. 4 button)

This diagnostic screen checks the gauge illumination. If the headlights are off, the display reads OFF.

If the headlight are on, you should see a values between 01 (max low) and 22 max high.

When you dim and brighten the gauge, you should see this value change accordingly.

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Vehicle speed pulse indication (press No. 5 button)

This diagnostic screen checks that the audio unit is receiving the VSP indication.

When you drive the vehicle, the VSP indicates the vehicle speed in km/h.

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Reception level indication (Push and hold 5 sec AM/FM or FM button)

This diagnostic screen checks the audio units reception level that can used in diagnosis check the audio reception quality.

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Speaker Check Mode

Note. Not all self-diagnostic functions appear on all models. There may be other self-diagnostic functions that are for factory use only.

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1. Turn the ignition switch to ON (II). Turn the audio unit off.
2. Push and hold the No. 1 and No. 3 buttons. While holding the buttons, push the PWR knob to on. Release the buttons and the speaker check mode begins. A tone test should sound from one speaker. NOTE: Make sure the volume is set to a normal or sightly higher than normal volume and set the balance and fader to the center position.
3. Each time you press the SEEK/SKIP button, the test moves to the next speaker in the order listed. Display Specifications (SEEK/SKIP button (right arrows ) is pressed: (1)-->(2)-->(3)-->(4)-->(5)-->(6)-->(7)--> (SEEK/SKIP button (left arrows ) is pressed: (1)-->(7)-->(6)-->(5)-->(4)-->(3)-->(2)--> SPEAKER DISPLAYED SEGMENTS REFERENCE Speaker Displayed Segments Remarks (1) Driver's Door Speaker and Tweeter FRL You should hear a high frequency tone (2) Front Center Speaker (1) FRCNT You should hear a high frequency tone (3) Front Passenger's Door Speaker and Tweeter FR R (4) Right Rear Door Speaker and Satellite Speaker (1) RRR You should hear a high frequency tone (5) Subwoofer SW You should hear a low frequency tone (6) Left Rear Door Speaker and Satellite Speaker (1) RRL You should hear a high frequency tone (7) All Speakers ALL You should hear a high frequency tone The subwoofer does not sound atone (1) With ELS Audio System NOTE: Any other diagnostic screens are shown for factory use only.
4. The speaker check mode ends when you turn the audio unit off, or turn the ignition switch to LOCK (0).

Communication Connection Check Mode

Note. Not all self-diagnostic functions appear on all models. There may be other self-diagnostic functions that are for factory use only.

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1. Turn the ignition switch to ON (II). Turn the audio unit off.
2. Push and hold the No. 1 and No. 6 buttons. While holding the buttons, push the PWR knob to on. Release the buttons.
3. Press the No. 6 button, and the communication connection check mode begins. With ELS audio system With premium audio system
4. Each time you press the No. 6 button, the communication connection state is displayed in the following order. NOTE: If the audio-HVAC subdisplay or the audio-HVAC display is blank in all headlight positions, or blank only when the headlights are turned on, check for B-CAN DTCs. Display Specifications DISPLAYED SEGMENTS REFERENCE Displayed Segments State Remarks DSP OK The audio-HVAC subdisplay unit or the audio-HVAC display unit is connected. DSP NG The audio-HVAC subdisplay unit or the audio-HVAC display unit is not connected. AC OK The climate control unit is connected. AC NG The climate control unit is not connected. AMP OK 00 The stereo amplifier is connected. Applicable to the ELS audio system AMP OK 04 The stereo amplifier is connected (Error has occurred four times in the past). Applicable to the ELS audio system AMP NG The stereo amplifier is not connected. Applicable to the ELS audio system NOTE: Any other diagnostic screens shown are for factory use only.
5. The self-diagnostic function ends when you turn the audio unit, or the ignition switch to LOCK (0).

Error Codes

The audio system can display error codes when a problem is detected with the audio disc changer, the audio disc, the XM radio, or the anti-theft code.

CD Error Codes

CD ERROR CODES SOLUTION CHART

XM Error Codes

XM ERROR CODES SOLUTION CHART

Audio Unit Error Codes

AUDIO UNIT ERROR CODES SOLUTION CHART

Poor AM or FM radio reception or interference

Note. Check the vehicle battery condition first. Check the connectors for poor for connections or loose terminals. Check the radio reception in an open area. Poor reception/interference can be caused by any of these conditions: The radio station is far away. Atmospheric conditions are unfavorable. Aftermarket metallic window tinting can affect reception on vehicles with window antennas. If the vehicle has aftermarket metallic window tinting, advise your client that it would have to be removed for proper testing. A tall building, mountains, or high-voltage power lines are nearby.

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1. Turn the ignition switch to ON (II).
2. Do the seek stop test (see «SEEK STOP TEST»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system__seek-stop-test) ) and reception level indication in the Self-diagnostic Function (see «SELF-DIAGNOSTIC FUNCTION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system__self-diagnostic-function) ). Is the test vehicle 10 % of the known-good vehicle? YES- Multipath interference or weak station. Operation is normal. NO- Go to step 3.
3. Check the reception/interference is the same in several locations. Is the reception/interference the same? YES- Go to step 4. NO- Multipath interference or weak station. Operation is normal.
4. Check the reception/interference while the engine is running. Is there noise (static or whine) only with the engine running? YES- Check the antenna and radio grounds. If OK, check the charging system and the ignition system. NO- Go to step 5.
5. Do the seek stop test (see «SEEK STOP TEST»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system__seek-stop-test) ) and reception level indication in the Self-diagnostic Function (see «SELF-DIAGNOSTIC FUNCTION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system__self-diagnostic-function) ). Is the test vehicle 10 % of the known-good vehicle? YES- Multipath interference or weak station. NO- Go to step 6.
6. Check the AM/FM antenna mast for cracks, or other damage. Verify that the AM/FM antenna mast is tight. NOTE: Do not use any tools to tighten the AM/FM antenna mast. Is there any damage? YES- Replace the AM/FM antenna mast (see «AM/FM/XM ANTENNA REPLACEMENT»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). NO- Go to step 7.
7. Disconnect AM/FM antenna connector A (3P).
8. Turn the ignition switch to ON (II).
9. Measure the voltage between AM/FM antenna connector A (3P) terminal No. 3 and body ground. Is there battery voltage? YES- Go to step 15 . NO- Go to step 10.
10. Turn the ignition switch to LOCK (0).
11. Remove the audio unit. With ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ) With premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) )
12. Disconnect audio unit connector E (3P).
13. Check for continuity between audio unit connector E (3P) terminal No. 3 and AM/FM antenna connector A (3P) terminal No. 3. Is there continuity? YES- Go to step 14. NO- Repair open in the wire between the audio unit and the AM/FM antenna. Also check the AM/ FM antenna lead/sublead connector.
14. Check for continuity between audio unit connector E (3P) terminal No. 3 and body ground. Is there continuity? YES- Repair short to body ground in the wire between the audio unit and the AM/FM antenna. NO- With ELS audio system: Substitute a known-good audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). With premium audio system: Substitute a known-good audio unit (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original audio unit (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ).
15. Remove the audio unit: With ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ) With premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) )
16. Disconnect audio unit connector E (3P).
17. Check for continuity between audio unit connector E (3P) terminal No. 1 and AM/FM antenna connector A (3P) terminal No. 1. Is there continuity? YES- Go to step 18. NO- Replace the AM/FM antenna lead and/or sublead.
18. Check for continuity between audio unit connector E (3P) terminal No. 1 and body ground. Is there continuity? YES- Replace the AM/FM antenna lead and/or sublead. NO- Go to step 19.
19. Check for continuity between audio unit connector E (3P) terminal No. 2 and AM/FM antenna connector A (3P) terminal No. 2. Is there continuity? YES- Go to step 20. NO- Replace the AM/FM antenna lead and/or sublead.
20. Check for continuity between audio unit connector E (3P) terminal No. 1 and No. 2. Is there continuity? YES- Replace the AM/FM antenna lead and/or sublead. NO- Replace the AM/FM antenna, and recheck. If the reception is still poor, substitute a known-good audio unit with ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), with premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original audio unit with ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), with premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). This page left intentionally blank. This page left intentionally blank.

Audio unit power switch will not turn on (No information display and no sound)

Note. Check the vehicle battery condition first. Check the connectors for poor connections or loose terminals.

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1. Turn the ignition switch to ON (II).
2. Push the power switch on to see if audio unit turns on. Does the audio unit display operate properly, and does the audio unit sound normal? YES- Intermittent failure, the system is OK at this time. NO- Go to step 3.
3. Turn the ignition switch to LOCK (0).
4. Check the No. 23 (10 A) fuse in the under-hood fuse/relay box and the No. 35 (7.5 A) fuse in the under-dash fuse/relay box. Are the fuses OK? YES- Go to step 5. NO- Replace the fuse, and recheck.
5. Remove the audio unit, with ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), with premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). Check that the audio unit connectors are properly connected. Are they connected properly? YES- Go to step 6. NO- Repair poor connections and reconnect the connector, and recheck the function.
6. Disconnect audio unit connector A (17P). NOTE: Eject all the CDs before disconnecting the audio unit and CD changer to prevent damaging the CD player's load mechanism.
7. Turn the ignition switch to ON (II).
8. Measure voltage between body ground and audio unit connector A (17P) terminals the No. 14 and No. 17 individually. Is there battery voltage? YES- Go to step 9. NO- Repair open in the wire(s) between the No. 23 (10 A) fuse in the under-hood fuse/relay box, the No. 35 (7.5 A) fuse in the under-dash fuse/relay box and the audio unit.
9. Turn the ignition switch to LOCK (0).
10. Reconnect audio unit connector A (17P).
11. Turn the ignition switch to ON (II).
12. Measure the voltage between audio unit connector A (17P) terminal No. 9 and body ground. Is there less than 0.1 V? YES- With ELS audio system: Replace the audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). With premium audio system: Go to step 13. NO- Repair open in the wire between the audio unit connector A (17P) No. 9 terminal and body ground (G504) (see «GROUND TO COMPONENTS INDEX»(/acura/rdx/i-2006-2009/remont/body-electrical/#ground-distribution__ground-to-components-index) ).
13. Disconnect audio switch panel connector A (20P).
14. Turn the ignition switch to ON (II).
15. Measure the voltage between audio switch panel connector A (20P) terminal No. 11 and body ground. Is there about 5 V? YES- Go to step 16. NO- Repair open in the wire between the audio switch panel and the audio unit.
16. Turn the ignition switch to LOCK (0).
17. Reconnect audio switch panel connector A (20P).
18. Turn the ignition switch to ON (II).
19. Measure the voltage between audio switch panel connector A (20P) terminal No. 1 and body ground. Is there less then 0.1 V? YES- Substitute a known-good audio switch panel (see «AUDIO SWITCH PANEL REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), then reconnect all connectors and recheck. If the symptom/indication goes away, replace the original audio switch panel (see «AUDIO SWITCH PANEL REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). If symptom/indication is still present, replace the audio unit (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). NO- Repair open in the wire between audio switch panel connector A (20P) terminal No. 1 and audio unit connector C (28P) terminal No. 7, or check for a short to ground. If there is no short to power, substitute a known-good audio unit (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom goes away, replace the original audio unit (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ).

Audio unit power switch will not turn off

Note. Check the vehicle battery condition first. Check the connectors for poor connections or loose terminals. Check for aftermarket accessories plugged into the vehicle's accessory power sockets.

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1. Turn the ignition switch to ON (II).
2. Push the power switch off, to see if the audio unit turns off. Does the audio unit turn off? YES- Go to step 3. NO- Replace the audio unit: With ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ) With premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) )
3. Push the power switch on, then turn the ignition switch to LOCK (0). Does the audio unit turn off? YES- Operation is normal. NO- Go to step 5 .
4. Remove the audio unit: With ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ) With premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) )
5. Disconnect audio unit connector A (17P). NOTE: Eject all the CDs before disconnecting the audio unit and CD changer to prevent damaging the CD player's load mechanism.
6. Measure the voltage between audio unit connector A (17P) terminal No. 14 and body ground. Is there battery voltage? YES- Check for short to power on the PUR wire. NO- Replace the audio unit. With ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ) With premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) )

Note. Check the vehicle battery condition first. Check the connectors for poor connections or loose terminals. Set the fader and balance positions to the center. Before doing the troubleshooting, do the audio unit power switch will not turn on troubleshooting (see AUDIO UNIT POWER SWITCH WILL NOT TURN ON (NO INFORMATION DISPLAY AND NO SOUND) ).

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1. Turn the ignition switch to ON (II).
2. Turn on the audio unit, and make sure the volume button is not set to the MIN level. Is it at the MIN level? YES- Raise the volume level, and recheck the function. NO- Go to step 3.
3. On the steering wheel, check the navigation talk command, and/or the HandsFreeLink talk command functions. Are the navigation talk command and/or the HFL talk command function set? YES- Cancel the navigation talk command by pressing the navigation BACK button, and/or HFL talk command by pressing the HFL BACK button, then recheck the function. NO- Go to step 4.
4. Turn the ignition switch to LOCK (0).
5. Disconnect the HandsFreeLink control unit 28P connector and navigation unit connector A (20P).
6. Turn the ignition switch to ON (II), and recheck the audio system for sound. Did the sound return? YES- Reconnect the HandsFreeLink control unit and the navigation unit one at a time, and note which one causes sound to go away, replace the unit. NO- Go to step 7.
7. See if the problem recurs with the tuner and more than one CD. Does the problem recur using the tuner as well as CDs? YES- Go to step 8. NO- Go to «POOR AM OR FM RADIO RECEPTION OR INTERFERENCE TROUBLESHOOTING»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system__poor-am-or-fm-radio-reception) .
8. Do the speaker check mode with the self-diagnostic function (see «SELF-DIAGNOSTIC FUNCTION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system__self-diagnostic-function) ). Do all speakers produce a tone? YES- System is OK at this time. Check for poor connections at the audio unit, the speakers, and the stereo amplifier. NO- Go to step 9.
9. Turn the ignition switch to LOCK(0).
10. Check the speaker connector for a loose or poor connection. Reconnect the speaker connector, and recheck the symptom; is the condition still present? YES- Go to step 11. NO- Intermittent failure. Operation is normal.
11. Do the speaker test (see «SPEAKER TEST/REPLACEMENT»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). Is the speaker OK? YES- Go to step 12. NO- Replace the faulty speaker(s) (see «SPEAKER TEST/REPLACEMENT»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ).
12. Disconnect stereo amplifier connectors A (18P) and the relevant speaker connector(s).
13. Check for continuity between body ground and stereo amplifier connector A (18P) according to the table. Then check for continuity between both pairs of speaker wires (+) and (-) at the stereo amplifier connector A (18P) according to the table. TERMINAL CONTINUITY REFERENCE Speaker Stereo amplifier terminal Wire color Driver's door speaker, Left tweeter A16 (+) LT GRN A7 (-) LT BLU Front passenger's door speaker. Right tweeter A15 (+) GRY A6 (-) BRN Front center speaker A11 (+) PNK A2 (-) PUR Right rear door speaker A12 (+) BLU A3 (-) ORN Right rear satellite speaker A14 (+) YEL A5 (-) WHT Subwoofer A10 (+) GRN A1 (-) RED Left rear satellite speaker A17 (+) ORN A8 (-) GRY Left rear door speaker A13 (+) YEL A4 (-) BRN Is there continuity? YES- Repair short in the wire(s) between the stereo amplifier and the speaker(s) or short between the (+) and (-) speaker wires. NO- Go to step 14.
14. Connect the speaker connector terminal (+) and (-) with a jumper wire.
15. Check for continuity between each pair of speaker terminals at stereo amplifier connector A (18P) according to the table. TERMINAL CONTINUITY REFERENCE Speaker Stereo amplifier terminal Wire color Driver's door speaker, Left tweeter A16 (+) LT GRN A7 (-) LT BLU Front passenger's door speaker. Right tweeter A15 (+) GRY A6 (-) BRN Front center speaker A11 (+) PNK A2 (-) PUR Right rear door speaker A12 (+) BLU A3 (-) ORN Right rear satellite speaker A14 (+) YEL A5 (-) WHT Subwoofer A10 (+) GRN A1 (-) RED Left rear satellite speaker A17 (+) ORN A8 (-) GRY Left rear door speaker A13 (+) YEL A4 (-) BRN Is there continuity? YES- Go to step 16. NO- Repair open in the wire between the stereo amplifier and the speaker.
16. Disconnect the jumper wire.
17. Measure the voltage between stereo amplifier connector A (18P) terminal No. 18 and body ground. Is there battery voltage? YES- Go to step 18. NO- Repair open in the wire between the No. 31 (20 A) fuse in the under-dash fuse/relay box and stereo amplifier connector A (18P) terminal No. 18.
18. Disconnect stereo amplifier connector B (28P).
19. Turn the ignition switch to ON (II).
20. Measure the voltage between stereo amplifier connector B (28P) terminal No. 3 and body ground. Is there battery voltage? YES- Go to step 21. NO- Repair open in the wire between stereo amplifier connector B (28P) terminal No. 3 and audio unit connector D(32P) terminal No. 23.
21. Turn the ignition switch to LOCK(0).
22. Reconnect stereo amplifier connector A (18P) and B (28P).
23. Turn the ignition switch to ON (II).
24. Measure the voltage between body ground and stereo amplifier connector A (18P) terminal No. 9, connector B (28P) terminal No. 2 individually. Is there less than 0.1 V? YES- Go to step 25. NO- Repair open in the wire between stereo amplifier connector A (18P) terminal No. 9, connector B (28P) terminal No. 2 and body ground (G503, G504) (see «GROUND TO COMPONENTS INDEX»(/acura/rdx/i-2006-2009/remont/body-electrical/#ground-distribution__ground-to-components-index) ).
25. Do the communication connection check mode with the self-diagnostic function (see «SELF-DIAGNOSTIC FUNCTION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system__self-diagnostic-function) ). Is the stereo amplifier connection OK? YES- Go to step 31 . NO- Go to step 26.
26. Turn the ignition switch to LOCK (0).
27. Disconnect stereo amplifier connector B (28P) and audio unit connector D (32P) NOTE: Eject all the CDs before disconnecting the audio unit and CD changer to prevent damaging the CD player's load mechanism.
28. Check for continuity between stereo amplifier connector B (28P) and audio unit connector D (32P) as shown. Is there continuity? YES- Go to step 29. NO- There is an open in the wire(s) between the stereo amplifier and the audio unit. Replace the affected shielded harness.
29. Check for continuity between stereo amplifier connector B (28P) and body ground as shown. Is there continuity? YES- Repair short to ground in the wire(s) between stereo amplifier and audio unit. NO- Go to step 30.
30. Check for continuity between the terminals of stereo amplifier connector B (28P) according to the table. TERMINAL CONTINUITY REFERENCE From terminal To terminals B16 (GRY) B15 (GRN), B1 (RED) B15 (GRN) B1 (RED) Is there continuity between any of the terminals? YES- There is a short in the wire(s) between the audio unit and the stereo amplifier. Replace the affected shielded harness. NO- Replace the stereo amplifier (see «STEREO AMPLIFIER REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ).
31. Disconnect stereo amplifier connector B (28P) and audio connector D (32P).
32. Check for continuity between audio unit connector D (32P) and stereo amplifier connector B (28P) according to the table. TERMINAL CONTINUITY REFERENCE Audio unit connector Stereo amplifier connector Wire color D8 B24 BLK D9 B12 GRY D10 B25 GRN D11 B27 PUR D12 B26 GRY D13 B28 BLU D14 B19 LT BLU D15 B5 GRY D16 B18 BRN D24 B10 WHT D26 B11 RED D27 B13 YEL D29 B14 ORN D30 B6 PNK D32 B4 LT GRN Is there continuity? YES- Go to step 33. NO- There is an open in the wire(s) between the audio unit and the stereo amplifier. Replace the affected shielded harness.
33. Check for continuity between stereo amplifier connector B (28P) and body ground according to the table. TERMINAL CONTINUITY REFERENCE Stereo amplifier connector Wire color B4 LT GRN B5 GRY B6 PNK B10 WHT B11 RED B12 GRY B13 YEL B14 ORN B18 BRN B19 LT BLU B24 BLK B25 GRN B26 GRY B27 PUR B28 BLU Is there continuity? YES- There is a short to body ground in the wire(s) between the audio unit and the stereo amplifier. Replace the affected shielded harness. NO- Go to step 34.
34. Check for continuity between the terminals of stereo amplifier connector B (28P) according to the table. TERMINAL CONTINUITY REFERENCE From terminal To terminals B4 (LT GRN) B6 (PNK), B18 (BRN), B19 (LT BLU) B5 (GRY) B4 (LT GRN), B6 (PNK), B18 (BRN), B19 (LT BLU) B6 (PNK) B19 (LT BLU) B10 (WHT) B11 (RED), B24 (BLK), B25 (GRN) B11 (RED) B25 (GRN) B12 (GRY) B10 (WHT), B11 (RED), B24 (BLK), B25 (GRN) B13 (YEL) B14 (ORN), B27 (PUR), B28 (BLU) B14 (ORN) B28 (BLU) B18 (BRN) B6 (PNK), B19 (LT BLU) B24 (BLK) B11 (RED), B25 (GRN) B26 (GRY) B13 (YEL), B14 (ORN), B27 (PUR), B28 (BLU) B27 (PUR) B14 (ORN), B28 (BLU) Is there continuity between any of the terminals? YES- There is a short in the wire(s) between the audio unit and the stereo amplifier. Replace the affected shielded harness. NO- Substitute a known-good audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). If the symptom is still present, substitute a known-good stereo amplifier (see «STEREO AMPLIFIER REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original stereo amplifier (see «STEREO AMPLIFIER REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ).

Note. Check the vehicle battery condition first. Check the connectors for poor connections or loose terminals. Set the fader and balance positions to the center. Before doing symptom troubleshooting, do the audio unit power switch will not turn on troubleshooting (see AUDIO UNIT POWER SWITCH WILL NOT TURN ON (NO INFORMATION DISPLAY AND NO SOUND) ).

Scheme 117

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Scheme 120

Scheme 121

Scheme 122

Scheme 123

Scheme 124

Scheme 125

Scheme 126

1. Turn the ignition switch to ON (II).
2. Turn on the audio unit, and make sure the volume button is not set to the MIN level. Is it at the MIN level? YES- Raise the volume level, and recheck the function. NO- '09 USA, '08-09 Canada models: Go to step 3. '07-08 USA, '07 Canada models: Go to step 6 .
3. Turn the ignition switch to LOCK (0).
4. Disconnect the HandsFreeLink control unit 22P connector (see «CONTROL UNIT INPUT TEST/REPLACEMENT»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#handsfreelink-system) ).
5. Turn the ignition switch to ON (II), and recheck the audio system for sound. Did the sound return? YES- Reconnect the HandsFreeLink control unit. NO- Go to step 6.
6. See if the problem recurs with the tuner and more than one CD. Does the problem recur using the tuner as well as CDs? YES- Go to step 7. NO- Go to «POOR AM OR FM RADIO RECEPTION OR INTERFERENCE TROUBLESHOOTING»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system__poor-am-or-fm-radio-reception) .
7. Do the speaker check mode in the audio system self-diagnostic function (see «SELF-DIAGNOSTIC FUNCTION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system__self-diagnostic-function) ). Do all speakers produce a tone? YES- Intermittent failure; the system is OK at this time. Check for poor connections at the audio unit, speakers and stereo amplifier. NO- Go to step 8.
8. Turn the ignition switch to LOCK (0).
9. Check the speaker connector for a loose or poor connection. Reconnect the speaker connector, and recheck the symptom; is the condition still present? YES- Go to step 10. NO- Intermittent failure. Operation is normal.
10. Do the speaker test (see «SPEAKER TEST/REPLACEMENT»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). Is the speaker OK? YES- Go to step 11. NO- Replace the speaker(s).
11. Disconnect stereo amplifier connector A (18P) and the speaker connector.
12. Check for continuity between body ground and stereo amplifier connector A (18P) according to the table. Then check for continuity between both pairs of speaker wires (+) and (-) at stereo amplifier connector A (18P) according to the table. TERMINAL CONTINUITY REFERENCE Speaker Stereo amplifier terminal Wire color Driver's door speaker A16 (+) LT GRN A7 (-) LT BLU Front Passenger's door speaker A15 (+) GRY A6 (-) BRN Right rear door speaker A12 (+) BLU A3 (-) ORN Right front door tweeter A14 (+) RED A5 (-) WHT Subwoofer A10 (+) GRN Al (-) RED Left front door tweeter A17 (+) RED A8 (-) WHT Left rear door speaker A13 (+) YEL A4 (-) BRN Is there continuity? YES- Repair short in the wire(s) between the stereo amplifier and the speaker(s) or short between the (+) and (-) speaker wires. NO- Go to step 13.
13. Connect the speaker connector terminal (+) and (-) with a jumper wire.
14. Check for continuity between stereo amplifier connector A (18P) according to the table. TERMINAL CONTINUITY REFERENCE Speaker Stereo amplifier terminal Wire color Driver's door speaker A16 (+) LT GRN A7 (-) LT BLU Front Passenger's door speaker A15 (+) GRY A6 (-) BRN Right rear door speaker A12 (+) BLU A3 (-) ORN Right front door tweeter A14 (+) RED A5 (-) WHT Subwoofer A10 (+) GRN A1 (-) RED Left front door tweeter A17 (+) RED A8 (-) WHT Left rear door speaker A13 (+) YEL A4 (-) BRN Is there continuity? YES- Go to step 15. NO- Repair open in the wire between the stereo amplifier and the speaker.
15. Disconnect the jumper wire.
16. Measure the voltage between stereo amplifier connector A (18P) terminal No. 18 and body ground. Is there battery voltage? YES- Go to step 17. NO- Repair open in the wire between the No. 31 (20 A) fuse in the under-dash fuse/relay box and stereo amplifier connector A (18P) terminal No. 18.
17. Disconnect stereo amplifier connector B (24P).
18. Turn the ignition switch to ON (II).
19. Measure the voltage between stereo amplifier connector B (24P) terminal No. 24 and body ground. Is there battery voltage? YES- Go to step 20. NO- Repair open in the wire between stereo amplifier connector B (24P) terminal No. 24 and audio unit connector D (32P) terminal No. 23.
20. Turn the ignition switch to LOCK (0).
21. Reconnect stereo amplifier connector A (18P) and connector B (24P).
22. Turn the ignition switch to ON (II).
23. Measure the voltage between stereo amplifier connector A (18P) terminal No. 9, connector B (24P) terminal No. 1 and body ground. Is there less than 0.1 V? YES- Go to step 24. NO- Repair open to the body ground in the wire(s) between stereo amplifier connector A (18P) terminal No. 9, connector B (24P) terminal No. 1 and body ground (G503, G504) (see «GROUND TO COMPONENTS INDEX»(/acura/rdx/i-2006-2009/remont/body-electrical/#ground-distribution__ground-to-components-index) ).
24. Turn the ignition switch to LOCK (0).
25. Disconnect audio unit connector D (32P) and stereo amplifier connector B (24P). NOTE: Eject all the CDs before disconnecting the audio unit and CD changer to prevent damaging the CD player's load mechanism.
26. Check for continuity between audio unit connector D (32P) and stereo amplifier connector B (24P) according to the table. TERMINAL CONTINUITY REFERENCE Audio unit connector Stereo amplifier connector Wire color D8 B2 PNK D9 B3 GRY D10 B5 RED D11 B4 PUR D12 B15 GRY D13 B7 YEL D14 B8 PNK D15 B9 GRY D24 B14 BLU D25 B6 GRY D26 B17 GRN D27 B16 LTBLU D28 B18 GRY D29 B19 BRN D30 B20 BLU Is there continuity? YES- Go to step 27. NO- Repair open in the wire(s) between the audio unit and the stereo amplifier. Replace the affected shielded harness.
27. Check for continuity between stereo amplifier connector B (24P) and body ground according to the table. TERMINAL CONTINUITY REFERENCE Stereo amplifier connector Wire color B2 PNK B3 GRY B4 PUR B5 RED B6 GRY B7 YEL B8 PNK B14 BLU B15 GRY B16 LT BLU B17 GRN B18 GRY B19 BRN B20 BLU Is there continuity? YES- Repair short to body ground in the wire(s) between the audio unit and the stereo amplifier. Replace the affected shielded harness. NO- Go to step 28.
28. Check for continuity between the terminals of stereo amplifier connector B (24P) according to the table. TERMINAL CONTINUITY REFERENCE From terminal To terminals B2 (PNK) B14 (BLU) B3 (GRY) B2 (PNK), B14 (BLU) B4 (PUR) B16 (LT BLU) B5 (RED) B17 (GRN) B6 (GRY) B5 (RED), B17 (GRN) B7 (YEL) B19 (BRN) B8 (PNK) B20 (BLU) B9 (GRY) B8 (PNK), B20 (BLU) B15 (GRY) B4 (PUR), B16 (LT BLU) B18 (GRY) B7 (YEL), B19 (BRN) Is there continuity between any of the terminals? YES- Short in the wire(s) between the audio unit and the stereo amplifier. Replace the affected shielded harness. NO- Substitute a known-good audio unit (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original audio unit (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). If the symptom is still present, substitute a known-good stereo amplifier (see «STEREO AMPLIFIER REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original stereo amplifier (see «STEREO AMPLIFIER REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ).

Note. Check the vehicle battery condition first. Check the connectors for poor connections or loose terminals.

1. Turn the ignition switch to ON (II).
2. Turn on the audio unit, and check for sound in each mode (AM, FM, XM, and CD). Is there sound from the speakers, and is the sound quality normal in each mode? YES- Intermittent failure. The system is OK at this time. Check for loose connections at the audio unit, the amplifier, and each speaker. NO- Speakers all work, sound quality is poor. If sound quality is poor only with the XM radio, or the XM radio does not function, go to «POOR OR NO SOUND WITH XM RADIO»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system__poor-or-no-sound-with-xm) . If the sound quality is poor only with AM or FM, go to «POOR AM OR FM RADIO RECEPTION OR INTERFERENCE»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system__poor-am-or-fm-radio-reception) . If the sound is poor in all modes, go to «SOUND QUALITY DIAGNOSIS»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system__sound-quality-diagnosis) .

Radio preset memory is lost

Note. If only XM stations are lost, go to XM RADIO PRESET MEMORY IS LOST . Check the vehicle battery condition first. Check the connectors for poor connection or loose terminals.

1. Turn the ignition switch to ON (II).
2. Turn on the audio unit, and set each of the radio station preset buttons. Do each of the buttons set properly? YES- Go to step 3. NO- Replace the audio unit: With ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ) With premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) )
3. Turn the ignition switch to LOCK (0) for 1 minute, then turn it back to ON (II).
4. Test the preset buttons for proper recall operation. Do the preset buttons recall the set radio stations? YES- System is normal at this time. Check connections at the audio unit. NO- Substitute a known-good audio unit with ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), with premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original audio unit with ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), with premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) )

Volume does not change

Note. Check the vehicle battery condition first. Check the connectors for poor connection or loose terminals. Set the fader and balance positions to the center.

Scheme 127

Scheme 128

Scheme 129

Scheme 130

1. Turn the ignition switch to ON (II).
2. Turn on the audio unit, and check for sound in each mode (AM, FM, XM, and CD). Is the sound normal? YES- Go to step 3. NO- Go to «AUDIO SYSTEM SOUND IS WEAK OR DISTORTED, OR NO SOUND IS HEARD FROM SPEAKER(S) WITH ELS AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) , with premium audio system (see «NO SOUND IS HEARD FROM THE SPEAKERS (DISPLAY IS NORMAL) (WITH PREMIUM AUDIO SYSTEM)»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ).
3. Operate the volume knob to see if the volume changes. Does the volume change? YES- Operation is normal at this time. NO- With ELS audio system: Substitute a known-good audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). With premium audio system: Go to step 4.
4. Turn the ignition switch to LOCK (0).
5. Disconnect audio switch panel connector B (5P) and audio unit connector C (28P).
6. Check for continuity between audio switch panel connector B (5P) and audio unit connector C (28P) according to the table. TERMINAL CONTINUITY REFERENCE Audio switch panel connector Audio unit connector Wire color B2 C16 GRY B3 C3 PUR B5 C17 LTBLU Is there continuity? YES- Go to step 7. NO- Repair open in the wire(s) between the audio unit and the audio switch panel. Replace the affected shielded harness.
7. Check for continuity between audio switch panel connector B (5P) and body ground as shown. Is there continuity? YES- Repair short to body ground in the wire(s) between the audio unit and the audio switch panel. NO- Go to step 8.
8. Check for continuity between the terminals of audio switch panel connector B (5P) according to the table. TERMINAL CONTINUITY REFERENCE From terminal To terminals B2 (GRY) B3 (PUR), B5 (LT BLU) B3(PUR) B5 (LT BLU) Is there continuity between any of the terminals? YES- Short in the wire(s) between the audio unit and the audio switch panel. Replace the affected shielded harness. NO- Substitute a known-good audio unit (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original audio unit (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). If the symptom is still present, substitute a known-good audio switch panel (see «AUDIO SWITCH PANEL REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original audio switch panel (see «AUDIO SWITCH PANEL REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ).

Volume does not increase with speed

Note. Check the vehicle battery condition first. Check the connectors for poor connection or loose terminals.

Scheme 131

1. Test-drive the vehicle at highway speeds and monitor if the volume increases. Does the volume increase? YES- Intermittent failure, the system is OK at this time. NO- Go to step 2.
2. Verify SVC mode setting in audio unit sound adjustment set-up. Is the SVC set to off? YES- Change setting to Mid and retest. NO- Go to step 3.
3. Do the self-diagnostic function for the vehicle speed pulse indication (see «SELF-DIAGNOSTIC FUNCTION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system__self-diagnostic-function) ). Does self-diagnostic function indicate a VSP signal? YES- Substitute a known-good audio unit with ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), with premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original audio unit with ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), with premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ) NO- Go to step 4.
4. Turn the ignition switch to LOCK (0).
5. Remove the audio unit, with ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), with premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and disconnect audio unit connector A (17P). NOTE: Eject all the CDs before removing the audio unit and CD changer to prevent damaging the CD player's load mechanism.
6. Turn the ignition switch to ON (II).
7. Drive the vehicle and have an assistant measure the voltage at audio unit connector A (17P) terminal No. 13. Is there 0-5 V pulses? YES- Substitute a known-good audio unit with ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), with premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original audio unit with ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), with premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ) NO- Repair opens or shorts in the wire between audio unit connector A (17P) terminal No. 13 and PCM connector A (44P) terminal No. 29. If no opens or shorts are found, substitute a known-good PCM (see «PCM REPLACEMENT»(/acura/rdx/i-2006-2009/remont/testing-diagnostics/#pgm-fi-system__pcm-replacement) ), and recheck. If the symptom/ indicated goes away, replace the original PCM (see «PCM REPLACEMENT»(/acura/rdx/i-2006-2009/remont/testing-diagnostics/#pgm-fi-system__pcm-replacement) ).

Volume is too high or too low when driving at freeway speeds

Note. Check the vehicle battery condition first. Check the connectors for poor connection or loose terminals.

1. Test-drive the vehicle at highway speeds and monitor volume level. Is the volume level too high, or too low? YES- Go to step 2. NO- Intermittent failure, the system is OK at this time.
2. Change SVC mode setting in sound adjustment setup to Mid and retest. Is the volume level still too high, or too low? YES- Substitute a known-good audio unit with ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), with premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original audio unit with ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), with premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ) NO- Improper SVC setting for client's sound taste.

Radio tuner does not change stations

Note. Check the vehicle battery condition first. Check the connectors for poor connection or loose terminals.

Scheme 132

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Scheme 134

Scheme 135

1. Turn the ignition switch to ON (II).
2. Turn on the audio unit and check the audio information on the display panel. Does the audio information display properly? YES- Go to step 3. NO- Go to «AUDIO UNIT POWER SWITCH WILL NOT TURN ON»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system__audio-unit-power-switch-will-not) .
3. Operate the tuning knob to see if the radio station changes. Does the radio station change? YES- Intermittent failure: the tuning knob is OK at this time. NO- With ELS audio system: Substitute a known-good audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). With premium audio system: Go to step 4.
4. Turn the ignition switch to LOCK (0).
5. Disconnect audio switch panel connector A (20P) and audio unit connector C (28P).
6. Check for continuity between audio unit connector C (28P) and audio switch panel connector A (20P) according to the table. TERMINAL CONTINUITY REFERENCE Audio unit connector Audio switch panel connector Wire color C4 A5 BLK C5 A7 YEL C6 A9 GRY C18 A6 RED C19 A8 GRN C20 A4 WHT Is there continuity? YES- Go to step 7. NO- Repair open in the wire(s) between the audio unit and the audio switch panel. Replace the affected shielded harness.
7. Check for continuity between audio switch panel connector A (20P) and body ground according to the table. TERMINAL CONTINUITY REFERENCE Audio switch panel connector Wire color A4 WHT A5 BLK A6 RED A7 YEL A8 GRN A9 GRY Is there continuity? YES- Repair short to body ground in the wire(s) between the audio unit and the audio switch panel. Replace the affected shielded harness. NO- Go to step 8.
8. Check for continuity between the terminals of audio switch panel connector A (20P) according to the table. TERMINAL CONTINUITY REFERENCE From terminal To terminals A9 (GRY) A4 (WHT), A5 (BLK), A6 (RED), A7(YEL), A8(GRN) A4 (WHT) A5 (BLK), A6 (RED), A7 (YEL), A8 (GRN) A5(BLK) A6 (RED), A7 (YEL), A8 (GRN) A6 (RED) A7(YEL), A8(GRN) A7 (YEL) A8(GRN) Is there continuity between any of the terminals? YES- Short in the wire(s) between the audio unit and audio switch panel. Replace the affected shielded harness. NO- Substitute a known-good audio unit (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). If the symptom is still present, substitute a known-good audio switch panel (see «AUDIO SWITCH PANEL REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/ indication goes away, replace the original audio switch panel (see «AUDIO SWITCH PANEL REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ).

Note. Check the vehicle battery condition first. Check the connectors for poor connection or loose terminals.

Scheme 136

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Scheme 143

1. Remove the audio-HVAC subdisplay unit (see «AUDIO-HVAC SUBDISPLAY UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ).
2. Check the connections at the audio-HVAC subdisplay unit 12P connector and audio unit connector C (28P). Are the connectors and terminals connected properly? YES- Go to step 3. NO- Repair the connection, and recheck.
3. Turn the ignition switch to ON (II).
4. Measure the voltage between the audio-HVAC subdisplay unit 12P connector terminal No. 6 and body ground. Is there less than 0.1 V? YES- Go to step 5. NO- Repair open in the wire between the audio-HVAC subdisplay unit 12P connector terminal No. 6 and body ground (G502) (see «GROUND TO COMPONENTS INDEX»(/acura/rdx/i-2006-2009/remont/body-electrical/#ground-distribution__ground-to-components-index) ).
5. Turn the ignition switch to LOCK (0).
6. Disconnect audio unit connector C (28P) and the audio-HVAC subdisplay unit 12P connector.
7. Check for continuity between audio unit connector C (28P) and the audio-HVAC subdisplay unit 12P connector according to the table. TERMINAL CONTINUITY REFERENCE Audio unit connector Audio-HVAC subdisplay unit connector Wire color C7 12 BRN C8 7 ORN C21 10 RED C22 8 GRN Is there continuity? YES- Go to step 8. NO- Repair open in the wire(s) between the audio unit and the audio-HVAC subdisplay unit.
8. Check for continuity between the audio-HVAC subdisplay unit 12P connector and body ground as shown. Is there continuity? YES- Repair short to body ground in the wire(s) between the audio unit and the audio-HVAC subdisplay unit. NO- Go to step 9.
9. Check for continuity between audio unit connector C (28P) and the audio-HVAC subdisplay unit 12P connector according to the table. TERMINAL CONTINUITY REFERENCE Audio unit connector Audio-HVAC subdisplay unit connector Wire color C5 4 ORN C6 1 GRY C18 2 YEL C19 3 BLU C20 5 PUR Is there continuity? YES- Go to step 10. NO- Repair open in the wire(s) between the audio unit and the audio-HVAC subdisplay unit. Replace the affected shielded harness.
10. Check for continuity between the audio-HVAC subdisplay unit 12P connector and body ground according to the table. TERMINAL CONTINUITY REFERENCE Audio-HVAC subdisplay unit connector Wire color 1 GRY 2 YEL 3 BLU 4 ORN 5 PUR Is there continuity? YES- Repair short to body ground in the wire(s) between the audio unit and the audio-HVAC subdisplay unit. Replace the affected shielded harness. NO- Go to step 11.
11. Check for continuity between the terminals of the audio-HVAC subdisplay unit 12P connector according to the table. TERMINAL CONTINUITY REFERENCE From terminal To terminals 1 (GRY) 2 (YEL), 3 (BLU) 4 (ORN), 5 (PUR) 2 (YEL) 3 (BLU), 4 (ORN), 5 (PUR) 3 (BLU) 4 (ORN), 5 (PUR) 4 (ORN) 5 (PUR) Is there continuity between any of the terminals? YES- Short in the wire(s) between the audio unit and the audio-HVAC subdisplay unit. Replace the affected shielded harness. NO- Substitute a known-good audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). If the symptom is still present, substitute a known-good audio-HVAC subdisplay unit (see «AUDIO-HVAC SUBDISPLAY UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original audio-HVAC subdisplay unit (see «AUDIO-HVAC SUBDISPLAY UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ).

Note. Check the vehicle battery condition first. Check the connectors for poor connection or loose terminals.

Scheme 144

Scheme 145

Scheme 146

Scheme 147

Scheme 148

Scheme 149

Scheme 150

Scheme 151

1. Remove the audio-HVAC display unit (see «AUDIO-HVAC SUBDISPLAY UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ).
2. Check the connections at the audio-HVAC display unit 12P connector, audio unit connector C (28P) and audio switch panel connector A (20P). Are the connectors and terminals connected properly? YES- Go to step 3. NO- Repair the connection, and recheck.
3. Turn the ignition switch to LOCK (0).
4. Disconnect the audio-HVAC display unit 12P connector and audio unit connector C (28P).
5. Check for continuity between audio unit connector C (28P) and the audio-HVAC display unit 12P connector as shown. Is there continuity? YES- Go to step 6. NO- Repair open in the wire(s) between the audio unit and the audio-HVAC display unit.
6. Check for continuity between body ground and audio-HVAC display unit 12P connector terminals No. 7 and No. 8 individually. Is there continuity? YES- Repair short to body ground in the wire between the audio unit and the audio-HVAC display unit. NO- Go to step 7.
7. Disconnect audio switch panel connector A (20P).
8. Check for continuity between audio switch panel connector A (20P) and the audio-HVAC display unit 12P connector as shown. Is there continuity? YES- Go to step 9. NO- Repair open in the wire(s) between the audio switch panel and the audio-HVAC display unit.
9. Check for continuity between body ground and audio-HVAC display unit 12P connector terminals No. 10 and No. 12 individually. Is there continuity? YES- Repair short to body ground in the wire between the audio unit and the audio-HVAC display unit. NO- Go to step 10.
10. Check for continuity between audio switch panel connector A (20P) and the audio-HVAC display unit 12P connector according to the table. TERMINAL CONTINUITY REFERENCE Audio switch panel connector Audio-HVAC display unit connector Wire color A3 1 GRY A13 3 BLK A14 4 RED A15 2 WHT A16 5 GRN Is there continuity? YES- Go to step 11. NO- Repair open in the wire(s) between the audio switch panel and the audio-HVAC display unit. Replace the affected shielded harness.
11. Check for continuity between the audio-HVAC display unit 12P connector and body ground according to the table. TERMINAL CONTINUITY REFERENCE Audio-HVAC display unit connector Wire color 1 GRY 2 WHT 3 BLK 4 RED 5 GRN Is there continuity? YES- Repair short to body ground in the wire(s) between the audio-HVAC display unit and the audio switch panel. Replace the affected shielded harness. NO- Go to step 12.
12. Check for continuity between the terminals of the audio-HVAC display unit 12P connector according to the table. TERMINAL CONTINUITY REFERENCE From terminal To terminals 1 (GRY) 2 (WHT), 3 (BLK) 4 (RED), 5 (GRN) 2 (WHT) 3 (BLK), 4 (RED), 5 (GRN) 3(BLK) 4 (RED), 5 (GRN) 4 (RED) 5 (GRN) Is there continuity between any of the terminals? YES- Short in the wire(s) between the audio switch panel and the audio-HVAC display unit. Replace the affected shielded harness. NO- Substitute a known-good audio switch panel (see «AUDIO SWITCH PANEL REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/ indication goes away, replace the original audio switch panel (see «AUDIO SWITCH PANEL REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). If the symptom is still present, substitute a known-good audio-HVAC display unit (see «AUDIO-HVAC SUBDISPLAY UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original audio-HVAC display unit (see «AUDIO-HVAC SUBDISPLAY UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ).

Note. Check the vehicle battery condition first. Check the connectors for poor connections or loose terminals.

Scheme 152

Scheme 153

1. Turn the ignition switch to ON (II).
2. Turn the combination lighting switch to the parking light position.
3. Check the illumination of the audio unit buttons. Are the buttons illuminated? YES- Intermittent problem: The audio unit is OK at this time. Check for loose or poor connections at audio unit connector A (17P). NO- Go to step 4.
4. Check the illumination of several other buttons not related to the audio system. Are the buttons illuminated? YES- Go to step 5. NO- Go to step 9 .
5. Turn the ignition switch to LOCK (0). NOTE: Eject all the CDs before disconnecting the audio unit and CD changer to prevent damaging the CD.
6. Disconnect audio unit connector A (17P).
7. Disconnect the gauge control module 36P connector (see «GAUGE CONTROL MODULE REPLACEMENT»(/acura/rdx/i-2006-2009/remont/gauges-instrument-panels/#gauges__gauge-control-module-replacement) ).
8. Check for continuity between audio unit connector A (17P) terminal No. 1 and gauge control module 36P connector terminal No. 16. Is there continuity? YES- Go to step 9. NO- Repair open in the wire between the gauge control module and the audio unit.
9. Turn the ignition switch to ON (II).
10. With the headlight switch still on, measure the voltage between audio unit connector A (17P) terminal No. 10 and body ground. Is there battery voltage? YES- Check the connections at audio unit connector A (17P). If all connections are OK, substitute a known-good audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). NO- Troubleshoot the interior lights. Start by checking the No. 14 (7.5 A) fuse in the under-dash fuse/relay box. If the fuse is OK, check for an open in the wire between the under-dash fuse/relay box and the audio unit.

Note. Check the vehicle battery condition first. Check the connectors for poor connections or loose terminals.

Scheme 154

Scheme 155

1. Turn the ignition switch to ON (II).
2. Turn the combination lighting switch to the parking light position.
3. Check the illumination of the audio switch panel buttons. Are the buttons illuminated? YES- Intermittent problem: The audio switch panel is OK at this time. Check for loose or poor connections at audio switch panel connector A (20P). NO- Go to step 4.
4. Check the illumination of several other buttons not related to the audio system. Are the buttons illuminated? YES- Go to step 5. NO- Go to step 9 .
5. Turn the ignition switch to LOCK (0).
6. Remove the audio switch panel, then check the bulbs (see «AUDIO SWITCH PANEL REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). Are the bulbs OK? YES- Go to step 7. NO- Replace the failed audio switch panel bulbs (see «AUDIO SWITCH PANEL REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ).
7. Disconnect audio switch panel connector A (20P) and the gauge control module 36P connector (see «GAUGE CONTROL MODULE REPLACEMENT»(/acura/rdx/i-2006-2009/remont/gauges-instrument-panels/#gauges__gauge-control-module-replacement) ).
8. Check for continuity between audio switch panel connector A (20P) terminal No. 18 and the gauge control module 36P connector terminal No. 16. Is there continuity? YES- Go to step 9. NO- Repair open in the wire between the gauge control module and the audio switch panel.
9. Turn the ignition switch to ON (II).
10. With the headlight switch still on, measure the voltage between audio switch panel connector A (20P) terminal No. 20 and body ground. Is there battery voltage? YES- Check the connections at audio switch panel connector A (20P). If all connections are OK, replace the audio switch panel (see «AUDIO SWITCH PANEL REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). NO- Troubleshoot the interior lights. Start by checking the No. 14 (7.5 A) fuse in the under-dash fuse/relay box. If the fuse is OK, check for an open in the wire between the under-dash fuse/relay box and the audio switch panel.

Audio remote switch does not work properly

Note. Check the vehicle battery condition first. Check the connectors for poor connection or loose terminals.

Scheme 156

Scheme 157

1. Test the audio remote switch (see «AUDIO SWITCH PANEL REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). Is the audio remote switch OK? YES- Go to step 2. NO- Replace the audio remote switch (see «AUDIO SWITCH PANEL REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ).
2. Turn the ignition switch to ON (II).
3. Turn on the audio unit, and check the audio remote switch operation (volume up, volume down, CH (UP), CH (DOWN), MODE). Is the audio unit operation OK? YES- Intermittent failure, the audio remote switch is OK at this time, check for loose connectors. NO- Go to step 4.
4. Turn the ignition switch to LOCK (0).
5. Remove the audio unit: With ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ) With premium system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) )
6. Disconnect audio unit connector D (32P).
7. Reconnect the audio remote switch, and measure the resistance between audio unit connector D (32P) terminals No. 3 and No. 19 as specified in the table. AUDIO REMOTE SWITCH TABLE Button held down VOL DOWN VOL UP CH(-) CH(+) MODE No button pressed Resistance about 100 ohms about 357 ohms about 775 ohms about 1.7 kohms about 3.7 kohms about 10kohms Is the resistance OK? YES- Go to step 8. NO- Repair short or high resistance in the circuit between the audio unit and the audio remote switch. If the wires are OK, replace the cable reel (see «CABLE REEL REPLACEMENT»(/acura/rdx/i-2006-2009/remont/airbag/#srs-supplemental-restraint-system) ).
8. Disconnect the audio remote switch 12P connector.
9. Check for continuity between body ground and audio unit connector D (32P) terminals No. 3 and No. 19 individually. Is there continuity? YES- Repair short to body ground in the circuit between the audio unit and the audio remote switch. If the wires are OK, replace the cable reel (see «CABLE REEL REPLACEMENT»(/acura/rdx/i-2006-2009/remont/airbag/#srs-supplemental-restraint-system) ). NO- With ELS audio system-Substitute a known-good audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). With premium audio system-Substitute a known-good audio unit (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the audio unit (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ).

Audio disc does not load

Note. Check the vehicle battery condition first. Check the connectors for poor connection or loose terminals. Disc labels should not be used in the audio unit. They may damage and jam the player mechanism. Make sure the audio disc is compatible with the system (see the owner's manual for more information).

1. Turn the ignition switch to ON (II).
2. Turn on the audio unit, and insert a known-good disc to see if the symptom can be duplicated. Does the disc load? YES- Operation is normal. If the disc loads normally, but will not play, go to «AUDIO DISC DOES NOT PLAY»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system__audio-disc-does-not-play) . NO- Go to step 3.
3. Insert another disc. Does the disc load? YES- The original disc is faulty. NO- Substitute a known-good audio unit with ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), with premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original audio unit with ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), with premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) )

Audio disc does not eject

Note. Check the vehicle battery condition first. Check the connectors for poor connection or loose terminals. Disc labels should not be used in the audio unit. They may damage and jam the player mechanism.

1. Turn the ignition switch to ON (II).
2. Turn on the audio unit. Does the system turn on? YES- Go to step 3. NO- Go to «AUDIO UNIT POWER SWITCH WILL NOT TURN ON»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system__audio-unit-power-switch-will-not) .
3. Check to see if the disc ejects correctly with no binding when you push the EJECT button. Does the disc eject properly? YES- Operation is normal. NO- Substitute a known-good audio unit with ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), with premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original audio unit with ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), with premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) )

Audio disc changer does not load all six discs

Note. Check the vehicle battery condition first. Check the connectors for poor connection or loose terminals. Disc labels should not be used in the audio unit. They may damage and jam the player mechanism.

1. Turn the ignition switch to ON (II).
2. Turn on the audio unit, and try loading six discs into the audio unit (in-dash disc changer). Does the audio unit accept all six discs? YES- Intermittent failure, the audio unit is OK at this time. NO- Go to step 3.
3. Try loading the disc player with six known-good discs. Does the audio unit (in-dash disc changer) accept all six discs? YES- At least one of the original discs is faulty. NO- Substitute a known-good audio unit with ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), with premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original audio unit with ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), with premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) )

Audio disc changer does not move between discs

Note. Check the vehicle battery condition first. Check the connectors for poor connection or loose terminals. Disc labels should not be used in the audio unit. They may damage and jam the player mechanism.

1. Turn the ignition switch to ON (II).
2. Insert six discs into the audio unit (in-dash disc changer), and see if the changer moves between discs. Does the changer operate normally? YES- Intermittent failure, the disc changer is OK at this time. NO- Go to step 3.
3. Insert six known-good discs into the audio unit. Does the changer operate normally? YES- At least one of the original discs is faulty. NO- Substitute a known-good audio unit with ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), with premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original audio unit with ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), with premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ) Special Tools Required Diagnostics CD 07AAZ-SDBA100

Audio disc does not play

Note. Check the vehicle battery condition first. Check the connectors for poor connection or loose terminals. Disc labels should not be used in the audio unit. They may damage and jam the player mechanism.

1. Turn the ignition switch to ON (II).
2. Turn on the audio unit and try loading a disc. Does the disc load? YES- Go to step 3. NO- Go to «AUDIO DISC DOES NOT LOAD»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system__audio-disc-does-not-load) .
3. Insert another disc to see if the symptom can be duplicated. Does the disc play? YES- Operation is normal. NO- Go to step 4.
4. Insert audio diagnostic CD (T/N 07AAZ-SDBA100) in the audio unit. Does the disc play? YES- The original disc is faulty or has an unreadable format. NO- Substitute a known-good audio unit with ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), with premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original audio unit with ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), with premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) )

Special Tools Required

1. Diagnostics CD 07AAZ-SDBA100
2. Skip test CD 07AAZ-SDBA200
3. Skip test CD 07AAZ-SDBA300

Audio disc skips

Note. Check the vehicle battery condition first. Check the connectors for poor connection or loose terminals. Disc labels should not be used in the audio unit. They may damage and jam the player mechanism.

1. Confirm the vehicles tires are properly inflated.
2. Check the client's disc for scratches and fingerprints. NOTE: The following test should be done with the audio unit bass and treble set to the client's listening settings. When comparing to known-good vehicles, do the comparison on the same model and trim level.
3. Test-drive the vehicle to identify when the client's disc skips. The audio diagnostic CD (T/N 07AAZ-SDBA100) can be used if the client's CD is not available; use tracks 10-12. Does the disc skip? YES- Go to step 4. NO- Operation is normal.
4. Compare the client's CD that skips to a known-good vehicle under the same conditions. Does the disc skip in the known-good vehicle under the same conditions? YES- The disc player operation is normal, the problem is with the client's disc. NO- Go to step 5. NOTE: Do the following test with vehicle parked and the engine running.
5. Insert the diagnostic skip test CD (T/N 07AAZ-SDBA300). Play tracks 2-11, and note on which track number(s) the disc starts skipping. Do the same test on a known-good vehicle. Does the disc skip on the same track(s) as the known-good vehicle? YES- Operation is normal. NO- Go to step 6.
6. Insert the diagnostic skip test CD (T/N 07AAZ-SDBA200). Play tracks 7-11 and tracks 13-15, and note on which track number(s) the disc starts skipping. Do the same test on a known-good vehicle. Does the disc skip on the same track number(s) as the known-good vehicle? YES- Operation is normal. NO- Substitute a known-good audio unit with ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), with premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original audio unit with ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), with premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) )

Error code: XM NO SIGNAL is displayed

Note. Check the vehicle battery condition first. Check the connectors for poor connection or loose terminals.

Scheme 158

Scheme 159

Scheme 160

Scheme 161

1. Park vehicle outside with a clear view of the southern horizon.
2. Turn the ignition switch to ON (II).
3. Turn on the audio unit, and select XM radio. Does the XM radio receive a signal? YES- Reception interference operation is normal. NO- With AcuraLink: Go to step 4. Without AcuraLink: Go to step 10 .
4. Turn the ignition switch to LOCK (0).
5. Check the AM/FM/XM antenna 2P connector and AcuraLink control unit (XM receiver) connector C (2P). Are the connectors connected? YES- Go to step 6. NO- Reconnect the AM/FM/XM antenna 2P connector and AcuraLink control unit connector C (2P) connector, and recheck XM radio operation. If the signal is restored, the system is OK. If the signal is not restored, go to step 3 .
6. Turn the ignition switch to ON (II).
7. Measure the voltage between AcuraLink control unit (XM receiver) connector A (20P) terminal No. 1 and body ground. Is there battery voltage? YES- Go to step 8. NO- Repair open in the wire between the No. 23 (10 A) fuse in the under-hood fuse/relay box and AcuraLink control unit (XM receiver) connector A (20P) terminal No. 1.
8. Measure the voltage between AcuraLink control unit (XM receiver) connector A (20P) terminal No. 11 and body ground. Is there less than 0.1 V? YES- Go to step 9. NO- Repair open in the wire between AcuraLink control unit (XM receiver) connector A (20P) terminal No. 11 and body ground (G505) (see «GROUND TO COMPONENTS INDEX»(/acura/rdx/i-2006-2009/remont/body-electrical/#ground-distribution__ground-to-components-index) ).
9. Substitute a known-good AM/FM/XM antenna. Does the XM radio receive a signal? YES- Replace the AM/FM/XM antenna (see «AM/FM/XM ANTENNA REPLACEMENT»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). NO- Substitute a known-good XM antenna lead. If the AcuraLink control unit (XM receiver) receives a signal, replace the original XM antenna lead. If the AcuraLink control unit (XM receiver) does not receive a signal, substitute a known-good AcuraLink control unit (XM receiver) (see «ACURALINK CONTROL UNIT (XM RECEIVER) REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ).
10. Turn the ignition switch to LOCK (0).
11. Check the connection at AM/FM/XM antenna connector B (2P) and XM receiver connector B (2P). Are the connectors connected? YES- Go to step 12. NO- Reconnect the connectors and recheck the XM radio operation. If the signal is restored, the system is OK. If the signal is not restored go to step 10 .
12. Turn the ignition switch to ON (II).
13. Measure the voltage between XM receiver connector A (14P) terminal No. 1 and body ground. Is there battery voltage? YES- Go to step 14. NO- Repair open in the wire between audio unit connector B (14P) terminal No. 1 and XM receiver connector A (14P) terminal No. 1.
14. Measure the voltage between XM receiver connector A (14P) terminal No. 11 and body ground. Is there less than 0.1 V? YES- Go to step 15. NO- Repair open in the wire between audio unit connector B (14P) terminal No. 11 and XM receiver connector A (14P) terminal No. 11.
15. Substitute a known-good AM/FM/XM antenna. Does the XM radio receive signal? YES- Replace the AM/FM/XM antenna (see «AM/FM/XM ANTENNA REPLACEMENT»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). NO- Substitute a known-good XM antenna lead. If the XM receiver receives a signal, replace the original XM antenna lead. If the XM receiver does not receive a signal, substitute a known-good XM receiver (see «ACURALINK CONTROL UNIT (XM RECEIVER) REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ).

Error code: XM ANTENNA is displayed

Note. Check the vehicle battery condition first. Check the connectors for poor connection or loose terminals. Check XM radio reception in an open area. Poor reception/interference can be caused by tall buildings, mountains, or high-voltage power lines.

1. Check XM receiver connector B (2P) at the XM receiver (without AcuraLink) or AcuraLink control unit connector C (2P) (XM receiver with AcuraLink). Is the connector connected? YES- Go to step 2. NO- Reconnect the connector. If the error message does not go away, go to step 2.
2. Check AM/FM/XM antenna connector B (2P). Is the connector connected? YES- Go to step 3. NO- Reconnect the connector. If the error message does not go away, go to step 3.
3. Substitute a known-good AM/FM/XM antenna (see «AM/FM/XM ANTENNA REPLACEMENT»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). Is the error message gone? YES- Replace the AM/FM/XM antenna (see «AM/FM/XM ANTENNA REPLACEMENT»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). NO- Go to step 4.
4. Substitute a known-good XM receiver (without AcuraLink) (see «ACURALINK CONTROL UNIT (XM RECEIVER) REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ) or the AcuraLink control unit (XM receiver with AcuraLink) (see «ACURALINK CONTROL UNIT (XM RECEIVER) REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). Is the error message gone? YES- Replace the XM receiver (without AcuraLink) (see «ACURALINK CONTROL UNIT (XM RECEIVER) REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ) or 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/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). NO- Replace the XM antenna sublead.

XM radio display is blank and no station information is displayed (with AcuraLink)

Note. Check the vehicle battery condition first. Check the connectors for poor connections or loose terminals. If you replace the XM receiver, the AcuraLink must be reactivated by Acura Client Services.

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Scheme 169

1. Turn the ignition switch to LOCK (0).
2. Disconnect AcuraLink control unit (XM receiver) connector A (20P).
3. Measure the voltage between AcuraLink Control unit (XM receiver) connector A (20P) terminal No. 1 and body ground. Is there battery voltage? YES- Go to step 4. NO- Repair open in the wire between the No. 23 (10 A) fuse in the under-hood fuse/relay box and AcuraLink control unit (XM receiver) connector A (20P) terminal No. 1.
4. Turn the ignition switch to ON (II).
5. Measure the voltage between AcuraLink control unit (XM receiver) connector A (20P) terminal No. 2 and body ground. Is there battery voltage? YES- Go to step 6. NO- Repair open in the wire between the No. 35 (7.5 A) fuse in the under-dash fuse/relay box and AcuraLink control unit (XM receiver) connector A (20P) terminal No. 2.
6. Measure the voltage between AcuraLink control unit (XM receiver) connector A (20P) terminal No. 12 and body ground. Is there battery voltage? YES- Go to step 7. NO- Repair open in the wire between No. 10 (7.5 A) fuse in the under-dash fuse/relay box and AcuraLink control unit (XM receiver) connector A (20P) terminal No. 12.
7. Turn the ignition switch to LOCK (0).
8. Reconnect AcuraLink control unit (XM receiver) connector A (20P).
9. Turn the ignition switch to ON (II).
10. Measure the voltage between AcuraLink control unit (XM receiver) connector A (20P) terminal No. 11 and body ground. Is there less than 0.1 V? YES- Go to step 11. NO- Repair open in the wire between AcuraLink control unit (XM receiver) connector A (20P) terminal No. 11 and body ground (G505) (see «GROUND TO COMPONENTS INDEX»(/acura/rdx/i-2006-2009/remont/body-electrical/#ground-distribution__ground-to-components-index) ).
11. Turn the ignition switch to LOCK (0).
12. Disconnect audio unit connector B (14P), AcuraLink control unit (XM receiver) connector A (20P), and the navigation display unit 20P connector.
13. Check for continuity between audio unit connector B (14P) and AcuraLink control unit (XM receiver) connector A (20P) according to the table. TERMINAL CONTINUITY REFERENCE Audio unit connector AcuraLink control unit (XM receiver) connector Wire color B3 A18 GRY B9 A7 LT BLU BIO A17 PUR Is there continuity? YES- Go to step 14. NO- Repair open in the wire(s) between the audio unit and the AcuraLink control unit (XM receiver). Replace the affected shielded harness.
14. Check for continuity between body ground and AcuraLink control unit (XM receiver) connector A (20P) terminals No. 7 and No. 17 individually. Is there continuity? YES- Repair short to body ground in the wire(s) between the audio unit and the AcuraLink control unit (XM receiver). NO- Go to step 15.
15. Check for continuity between the terminals of AcuraLink control unit (XM receiver) connector A (20P) according to the table. TERMINAL CONTINUITY REFERENCE From terminal To terminals A18 (GRY) A7 (LT BLU), A17 (PUR) A7 (LT BLU) A17 (PUR) Is there continuity between any of the terminals? YES- Short in the wire(s) between the audio unit and AcuraLink control unit (XM receiver). Replace the affected shielded harness NO- Substitute a known-good audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). If the symptom is still present, substitute a known-good AcuraLink control unit (XM receiver) (see «ACURALINK CONTROL UNIT (XM RECEIVER) REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. 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/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ).

XM radio display is blank and no station information is displayed (without AcuraLink)

Note. Check the vehicle battery condition first. Check the connectors for poor connections or loose terminals.

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Scheme 177

1. Disconnect XM receiver connector A (14P).
2. Turn the ignition switch to ON (II).
3. Measure the voltage between XM receiver connector A (14P) terminal No. 1 and body ground. Is there battery voltage? YES- Go to step 4. NO- Repair open in the wire between XM receiver connector A (14P) terminal No. 1 and audio unit connector B (14P) terminal No. 1.
4. Measure the voltage between XM receiver connector B (14P) terminal No. 2 and body ground. Is there 10 V or more present? YES- Go to step 5. NO- Substitute a known-good XM receiver (see «ACURALINK CONTROL UNIT (XM RECEIVER) REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If 10 V or more is present, replace the original XM receiver (see «ACURALINK CONTROL UNIT (XM RECEIVER) REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ).
5. Turn the ignition switch to ON (II).
6. Measure the voltage between audio unit connector B (14P) terminal No. 2 and body ground. Is there less than 0.5 V? YES- Go to step 7. NO- Substitute a known-good audio unit (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If 0.5 V or less is present, replace the original audio unit (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ).
7. Turn the ignition switch to LOCK (0).
8. Reconnect XM receiver connector A (14P).
9. Turn the ignition switch to ON (II).
10. Measure the voltage between XM receiver connector A (14P) terminal No. 11 and body ground. Is there less than 0.1 V? YES- Go to step 11. NO- Repair open in the wire between XM receiver connector A (14P) terminal No. 11 and audio unit connector B(14P) terminal No. 11.
11. Turn the ignition switch to LOCK (0).
12. Disconnect audio unit connector B (14P) and XM receiver connector A (14P).
13. Check for continuity between audio unit connector B (14P) and XM receiver connector A (14P) according to the table. TERMINAL CONTINUITY REFERENCE Audio unit connector XM receiver connector Wire color B3 A3 GRY B9 A9 LT BLU B10 A10 PUR Is there continuity? YES- Go to step 14. NO- Repair open in the wire(s) between the audio unit and the XM receiver. Replace the affected shielded harness.
14. Check for continuity between body ground and XM receiver connector A (14P) terminals No. 9 and No. 10 individually. Is there continuity? YES- Repair short to body ground in the wire(s) between the audio unit and the XM receiver. NO- Go to step 15.
15. Check for continuity between the terminals of XM receiver connector A (14P) according to the table. TERMINAL CONTINUITY REFERENCE From terminal To terminals A3 (GRY) A9 (LT BLU), A10 (PUR) A9 (LT BLU) A10 (PUR) Is there continuity between any of the terminals? YES- Short in the wire(s) between the audio unit and the XM receiver. Replace the affected shielded harness. NO- Substitute a known-good audio unit with ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), with premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original audio unit, with ELS audio system (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), with premium audio system (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). If the symptom is still present, substitute a known-good XM receiver (see «ACURALINK CONTROL UNIT (XM RECEIVER) REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original XM receiver (see «ACURALINK CONTROL UNIT (XM RECEIVER) REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ).

XM radio preset memory is lost

Note. Check the vehicle battery condition first. Check the connectors for poor connections or loose terminals.

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1. Turn the ignition switch to ON (II).
2. Turn on the audio unit and set each of the XM radio channel preset buttons. Does each of the XM radio channel preset buttons set properly? YES- Go to step 3. NO- Go to step 5 .
3. Turn the ignition switch to LOCK (0) for 1 minute, then turn it back to ON (II).
4. Test all of the XM radio channel preset buttons for proper recall operation. Do the preset buttons recall the XM radio stations? YES- Intermittent failure, the system is normal at this time. Check connections at the audio unit. NO- With AcuraLink: Go to step 5. Without AcuraLink: Go to step 14 .
5. Turn the ignition switch to LOCK (0).
6. Disconnect AcuraLink control unit (XM receiver) connector A (20P).
7. Turn the ignition switch to ON (II).
8. Measure the voltage between AcuraLink control unit (XM receiver) connector A (20P) terminal No. 1 and body ground. Is there battery voltage? YES- Go to step 9. NO- Repair open in the wire between the under-hood fuse/relay box and AcuraLink control unit (XM receiver) connector A (20P) terminal No. 1.
9. Measure the voltage between body ground and AcuraLink control unit (XM receiver) connector A (20P) terminals No. 2, and No. 12 individually. Is there battery voltage? YES- Go to step 10. NO- Repair open in the wire(s) between the under-hood fuse/relay box and the AcuraLink control unit (XM receiver) connector A (20P) terminals No. 2 and/or No. 12.
10. Turn the ignition switch to LOCK (0).
11. Reconnect AcuraLink control unit (XM receiver) connector A (20P).
12. Turn the ignition switch to ON (II).
13. Measure the voltage between AcuraLink control unit (XM receiver) connector A (20P) terminal No. 11 and body ground. Is there less than 0.1 V? YES- Replace the AcuraLink control unit (XM receiver) (see «ACURALINK CONTROL UNIT (XM RECEIVER) REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). NO- Repair open in the wire between AcuraLink control unit (XM receiver) connector A (20P) terminal No. 11, and body ground (G505) (see «GROUND TO COMPONENTS INDEX»(/acura/rdx/i-2006-2009/remont/body-electrical/#ground-distribution__ground-to-components-index) ).
14. Turn the ignition switch to LOCK (0).
15. Disconnect XM receiver connector A (14P).
16. Turn the ignition switch to ON (II).
17. Measure the voltage between XM receiver connector A (14P) terminal No. 1 and body ground. Is there battery voltage? YES- Go to step 18. NO- Repair open in the wire between audio unit connector B (14P) terminal No. 1, and XM receiver connector A (14P) terminal No. 1.
18. Turn the ignition switch to LOCK (0).
19. Reconnect XM receiver connector A (14P).
20. Turn the ignition switch to ON (II).
21. Measure the voltage between XM receiver connector A (14P) terminal No. 11 and body ground. Is there less than 0.1 V? YES- Replace the XM receiver (see «ACURALINK CONTROL UNIT (XM RECEIVER) REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). NO- Repair open in the wire between audio unit connector B (14P) terminal No. 11 and XM receiver connector A (14P) terminal No. 11.

Poor or no sound with XM radio (Audio unit does display XM channels)

Note. Check the vehicle battery condition first. Check the connector for poor connections or loose terminals. Check the XM radio reception in an open area. Poor reception/interference can be caused by nearby tall buildings, mountains, or high-voltage power lines. If you can only tune to channel 000,001,174, and 247, make sure the audio unit is set to channel mode (see owners manual), if it is set to channel mode, call XM satellite radio client support, and check the account activation status. If you replace the XM receiver, the AcuraLink must be reactivated by Acura Client Services.

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1. Turn the ignition switch to ON (II).
2. Turn on the audio unit, and select XM radio.
3. Check for an error message on the display. Are there any messages displayed? YES- Go to the «ERROR CODE LIST»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system__error-codes) . NO- With AcuraLink: Go to step 4. Without AcuraLink: Go to step 9 .
4. Turn the ignition switch to LOCK (0).
5. Disconnect audio unit connector B (14P) and AcuraLink control unit (XM receiver) connector A (20P).
6. Check for continuity between audio unit connector B (14P) and AcuraLink control unit (XM receiver) connector A (20P) according to the table. TERMINAL CONTINUITY REFERENCE Audio unit connector AcuraLink control unit (XM receiver) connector Wire color B4 A8 GRY B5 A10 RED B6 A9 BLK B13 A20 WHT B14 A19 GRN Is there continuity? YES- Go to step 7. NO- Repair open in the wire(s) between the audio unit and the AcuraLink control unit (XM receiver). Replace the affected shielded harness.
7. Check for continuity between AcuraLink control unit (XM receiver) connector A (20P) and body ground according to the table. TERMINAL CONTINUITY REFERENCE AcuraLink control unit (XM receiver) connector Wire color A8 GRY A9 BLK A10 RED A19 GRN A20 WHT Is there continuity? YES- Repair short to body ground in the wire(s) between the audio unit and the AcuraLink control unit (XM receiver). Replace the affected shielded harness. NO- Go to step 8.
8. Check for continuity between the terminals of AcuraLink control unit (XM receiver) connector A (20P) according to the table. TERMINAL CONTINUITY REFERENCE From terminal To terminals A8 (GRY) A9 (BLK), A10 (RED), A19 (GRN), A20 (WHT) A20 (WHT) A9 (BLK), A10 (RED), A19 (GRN) A10 (RED) A9 (BLK), A19 (GRN) A19 (GRN) A9 (BLK) Is there continuity between any of the terminals? YES- Short in the wire(s) between the audio unit and the AcuraLink control unit (XM receiver). Replace the affected shielded harness. NO- Substitute a known-good audio unit, with ELS audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), with premium audio unit (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original audio unit with ELS audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), with premium audio unit (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). If the symptom is still present, substitute a known-good AcuraLink control unit (XM receiver) (see «ACURALINK CONTROL UNIT (XM RECEIVER) REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. 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/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ).
9. Turn the ignition switch to LOCK (0).
10. Disconnect audio unit connector B (14P) and XM receiver connector A (14P).
11. Check for continuity between audio unit connector B (14P) and XM receiver connector A (14P) according to the table. TERMINAL CONTINUITY REFERENCE Audio unit connector XM receiver connector Wire color B4 A4 GRY B5 A5 RED B6 A6 BLK B13 A13 WHT B14 A14 GRN Is there continuity? YES- Go to step 12. NO- Repair open in the wire(s) between the audio unit and the XM receiver. Replace the affected shielded harness.
12. Check for continuity between XM receiver connector A (14P) and body ground according to the table. TERMINAL CONTINUITY REFERENCE XM receiver connector Wire color A4 GRY A5 RED A6 BLK A13 WHT A14 GRN Is there continuity? YES- Repair short to body ground in the wire(s) between the audio unit and the XM receiver. Replace the affected shielded harness. NO- Go to step 13.
13. Check for continuity between the terminals of XM receiver connector A (14P) according to the table. TERMINAL CONTINUITY REFERENCE From terminal To terminals A4 (GRY) A5 (RED), A6 (BLK), A13 (WHT), A14 (GRN) A13 (WHT) A5 (RED), A6 (BLK), A14 (GRN) A5 (RED) A6 (BLK), A14 (GRN) A14 (GRN) A6 (BLK) Is there continuity between any of the terminals? YES- Short in the wire(s) between the audio unit and the XM receiver. Replace the affected shielded harness. NO- Substitute a known-good audio unit (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original audio unit (see «WITH PREMIUM AUDIO SYSTEM»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). If the symptom is still present, substitute a known-good XM receiver (see «ACURALINK CONTROL UNIT (XM RECEIVER) REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ), and recheck. If the symptom/indication goes away, replace the original XM receiver (see «ACURALINK CONTROL UNIT (XM RECEIVER) REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ).

Sound Quality Diagnosis

Special Tools Required

Diagnostics CD 07AAZ-SDBA100

Use the following tests to check sound quality.

Note. Before beginning the following tests, write down the client's bass, treble, fader and balance settings, then set them to their center positions for the testing.

Left/Right Channel ID

Do this test to confirm proper channel routing.

1. Insert the audio diagnostic CD (T/N 07AAZ-SDBA100) into the audio unit.
2. Play track No. 1 (left, both, right channel ID) at a normal, or slightly higher than normal, volume level.
3. The voice should be audible only from the channel or channels when indicated. If the channel ID is correct for each side, go to «PHASE TEST»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system__phase-test) . If the channel ID is not correct, check for: Shorted speaker wire Faulty amplifier Faulty audio unit

Special Tools Required

Diagnostics CD 07AAZ-SDBA100

Use the following tests to check sound quality.

Note. Before beginning the following tests, write down the client's bass, treble, fader and balance settings, then set them to their center positions for the testing.

Phase Test

Do this test to confirm proper speaker phasing.

1. Insert the audio diagnostic CD (T/N 07AAZ-SDBA100) into the audio unit.
2. Play track No. 2 (phase) at a normal, or slightly higher than normal, volume level.
3. The voice should sound centered and focused when it is in-phase.
4. The voice should sound diffused, and have less bass when it is out of phase. If the voice changes from in-phase to out of phase as indicated by the prompt, the phasing is correct. Go to «ELECTRICAL NOISE TEST»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system__electrical-noise-test) . If the voice always sounds out of phase, phasing is not correct. Check for: Crossed speaker wire Faulty amplifier Faulty audio unit

Special Tools Required

Diagnostics CD 07AAZ-SDBA100

Electrical Noise Test

Do this test to check for electrical noise being induced into the audio system.

Note. Electrical noise may be caused by outside sources that cannot be handled by the audio system. Make sure you remove any cell phones and/or turn off any aftermarket devices before beginning this test.

1. Insert the audio diagnostic CD (T/N 07AAZ-SDBA100) into the audio unit.
2. Play track No. 4 (digital zero) at a normal, or slightly higher than normal, volume level.
3. Operate any electrical device that may create electrical noise in the audio system, including starting the engine.
4. Play track No. 5 (near digital zero) at a normal, or slightly higher than normal, volume level.
5. Operate any electrical device that may create electrical noise in the audio system, including starting the engine.
6. Play track No. 6 (SNR) at a normal, or slightly higher than normal, volume level.
7. Operate any electrical device that may create electrical noise in the audio system, including starting the engine. If no abnormal noise is heard, go to the individual speaker test (see «SPEAKER TEST/REPLACEMENT»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). If the noise is present only during the SNR track, replace the audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system) ). If the noise is heard during the digital zero or near digital zero track, check for: Poor ground at the audio unit, amplifier, engine, or battery cable Pinched or shorted speaker or amplifier wire Faulty amplifier Faulty audio unit Other faulty components causing excessive electrical noise (ignition coils, alternator, door lock actuators, etc.). Disconnect any suspect components, and then replay the tracks that were originally noisy. If the noise is gone, check the component's circuit and the component.

Special Tools Required

Diagnostics CD 07AAZ-SDBA100

Individual Speaker Test

Do this test to identify a faulty speaker.

1. Insert the audio diagnostic CD (T/N 07AAZ-SDBA100) into the audio unit.
2. Play track No. 30 (steady 300 Hz tone) at a normal, or slightly higher than normal, volume level.
3. Listen to each speaker for poor sound compared to the other channels. Use the audio unit's fader and balance settings to help isolate the channel with the problem. If the sound quality produced by a specific speaker is poor, substitute it with a known-good speaker. If the poor sound quality continues, go to the «SOUND BALANCE TEST»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system__sound-balance-test) . If the sound quality is OK, go to the «SOUND BALANCE TEST»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system__sound-balance-test) .

Special Tools Required

Diagnostics CD 07AAZ-SDBA100

Sound Balance Test

Do this test to identify a faulty channel or speaker.

1. Insert the audio diagnostic CD (T/N 07AAZ-SDBA100) into the audio unit.
2. Confirm the bass and treble are set to the center positions.
3. Play track No. 3 (pink noise) at a normal, or slightly higher than normal, volume level.
4. A static type sound should be heard through all speakers.
5. Insert the audio diagnostic CD (T/N 07AAZ-SDBA100) into the audio unit of a known-good vehicle.
6. Set the bass and treble to the center positions.
7. Play track No. 3 (pink noise) at the same level as was played in step 3 .
8. Compare the sounds made by the two vehicles. If the sound does not have as much bass, check the subwoofer and circuit. If the sound does not have enough hiss, check the tweeters and their circuits.

Special Tools Required

Diagnostics CD 07AAZ-SDBA100

Frequency Sweep

Do this test to find rattles or reverberations that may cause a perception of poor sound quality.

1. Insert the audio diagnostic CD (T/N 07AAZ-SDBA100) into the audio unit.
2. Play track No. 13 (sweep from 500 Hz to 35 Hz) at a normal, or slightly higher than normal, volume level.
3. Listen to each speaker for poor sound quality or reverberations caused by specific frequencies. Use the voice-over to estimate the frequency that causes the vibration. Use the audio unit's fader and balance settings to help isolate the channel with the problem. If vibrations or poor sound quality are heard, go to step 4. If no vibrations or poor sound quality are heard, go to «SOUND JUDGING»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system__sound-judging) .
4. Choose the appropriate track from No. 14 to 25 (small range frequency sweep) or 26 to 53 (single frequencies) to recreate the frequency that caused the poor sound quality or vibration witnessed in step 3 ; this aids in diagnosis of the cause. NOTE: When you get to the track that recreates the problem, select the repeat function on the audio unit, this will help you isolate the cause.
5. Replace or insulate the source of the vibration or, if the speaker is the source of the poor sound quality, replace it.

Special Tools Required

Diagnostics CD 07AAZ-SDBA100

Sound Judging

Do this test to compare overall sound quality, imaging, and dynamics between the client's vehicle and a known-good vehicle. Only use a vehicle of the same model and trim level for this test.

1. In the client's vehicle, set the bass, treble, fader, and balance settings to the client's normal settings that were written down before beginning the test.
2. Insert the audio diagnostic CD (T/N 07AAZ-SDBA100) into the audio unit.
3. Play tracks No. 7 to 12 (sound quality, midland, dynamics, and imaging demonstration tracks) at a normal, or slightly higher than normal, volume level. Write down the volume setting being used.
4. Listen to areas of the track that stand out as being either very clear or poorer than other areas of the track.
5. In a known-good vehicle, insert the audio diagnostic CD (T/N 07AAZ-SDBA100) into the audio unit.
6. Play the tracks at the same volume level and the same bass, treble, balance, and fader settings as used in step 3 in the client's vehicle.
7. Listen to the same area of the track that stood out as being either very clear or poorer than other areas of the track.
8. Compare the client's vehicle's sound quality results to the known-good vehicle's results. If the sound quality in the client's vehicle is comparable to the sound quality in the known-good vehicle, then the client's vehicle is operating as designed. If the sound quality is not comparable, check these items in order: Loose or improperly installed speakers or other hardware that may create interference from the vibrations generated by the speakers Poor power or ground to the stereo amplifier Damaged speaker(s) Faulty amplifier Faulty audio unit

Seek Stop Test

Do this test to check the performance of the audio unit's AM and FM reception. Refer to SYMPTOM TROUBLESHOOTING: AUDIO SOUND WEAK OR DISTORTED, OR NO SOUND IS HEARD FROM SPEAKERS (DISPLAY IS NORMAL) WITH ELS AUDIO SYSTEM , with premium audio system (see NO SOUND IS HEARD FROM THE SPEAKERS (DISPLAY IS NORMAL) (WITH PREMIUM AUDIO SYSTEM) ) before continuing with this test.

Note. Window tint, aftermarket theft-recovery devices and other aftermarket devices may affect reception. Changes in cloud cover and other atmospheric conditions will affect the ability of the audio unit to receive radio signals.

1. Park the client's vehicle in an open area away from buildings or other obstructions.
2. Park a known-good vehicle (same year, model, and trim level) next to the client's vehicle, facing the same direction.
3. Start the engine in the client's vehicle, and turn on the radio.
4. Set the FM receiver to 87.7 MHz.
5. Press the Seek + button, and record the first station that the audio unit locks onto.
6. Press the Seek + button repeatedly, and write down each station that the audio unit locks onto until the station recorded in step 5 is reached again.
7. Set the AM receiver to 530 kHz.
8. Press the Seek + button, and record the first station that the audio unit locks onto.
9. Press the Seek + button repeatedly, and write down each station that the audio unit locks onto until the station recorded in step 8 is reached again.
10. Turn the ignition switch to ON (II).
11. Start the engine in the known-good vehicle, and then do step 4 thru 10 on the known-good vehicle.
12. Compare the number of stations received in steps 6 and 9 in the client's vehicle with the number of stations received in the known-good vehicle. If the number of stations received is the same, or within 10%, the audio unit's tuner performance is OK. The problem may be atmospheric conditions, multi-path interference, or other obstructions to the radio signal. If the client's vehicle receives fewer stations by at least 10 %, go to step 2 of poor AM/FM radio reception or interference (see «POOR AM OR FM RADIO RECEPTION OR INTERFERENCE»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#audio-system__poor-am-or-fm-radio-reception) ).

SRS components are located in this area. Review the SRS component locations (see COMPONENT LOCATION INDEX ), and the precautions and procedures (see PRECAUTIONS AND PROCEDURES ) before doing repairs or service.

Note. Put on gloves to protect your hands. Take care not to scratch the dashboard and related parts. Lay a workshop towel under the parts when working on them to protect the face panel from scratches or other damage. Eject all the discs before removing the audio unit to prevent damaging the CD/DVD player's load mechanism. If you are replacing the audio unit, write down the audio presets (if possible), and enter them into the new audio unit.

Scheme 191

Scheme 192

1. Make sure you have the anti-theft code for the audio system and the navigation system.
2. Remove the center console panel (see step 3 on «CENTER CONSOLE REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/exteriorinterior-trim/#consoles__center-console-removalinstallation) ) and the audio pocket (see step 10 on «CENTER CONSOLE DISASSEMBLY/REASSEMBLY»(/acura/rdx/i-2006-2009/remont/exteriorinterior-trim/#consoles__center-console-disassemblyreassembly) ).
3. Remove the bolts (A), then pull out the audio unit (B).
4. Disconnect the connectors, then remove the audio unit.
5. Remove the bolts (A) and the brackets (B).
6. Install the audio unit in the reverse order of removal, and note these items: Make sure all the connectors are secure. Enter the anti-theft code for the audio system. If necessary, enter the navigation system code.
7. Give the new anti-theft codes to the client.

SRS components are located in this area. Review the SRS component locations (see COMPONENT LOCATION INDEX ), and the precautions and procedures (see PRECAUTIONS AND PROCEDURES ) before doing repairs or service.

Note. Put on gloves to protect your hands. Take care not to scratch the dashboard and related parts. Lay a workshop towel under the parts when working on them to protect the face panel from scratches or other damage. Eject all the discs before removing the audio unit to prevent damaging the CD/DVD player's load mechanism. If you are replacing the audio unit, write down the audio presets (if possible), and enter them into the new audio unit.

Scheme 193

Scheme 194

1. Make sure you have the anti-theft code for the audio system.
2. Remove the center console panel (see step 3 on «CENTER CONSOLE REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/exteriorinterior-trim/#consoles__center-console-removalinstallation) ) and the audio pocket (see step 10 on «CENTER CONSOLE DISASSEMBLY/REASSEMBLY»(/acura/rdx/i-2006-2009/remont/exteriorinterior-trim/#consoles__center-console-disassemblyreassembly) ).
3. Remove the bolts (A), then pull out the audio unit (B).
4. Disconnect the connectors, then remove the audio unit.
5. Remove the bolts (A) and the brackets (B).
6. Install the audio unit in the reverse order of removal, and note these items: Make sure all the connectors are secure. Enter the anti-theft code for the audio system. Set the clock.
7. Give the new anti-theft codes to the client.

With navigation

Note. Put on gloves to protect your hands. Take care not to scratch the dashboard.

Scheme 195

1. Remove the center upper dashboard panel (see «GLOVE BOX STRIKER REPLACEMENT»(/acura/rdx/i-2006-2009/remont/gauges-instrument-panels/#dashboard-instrument-panel__glove-box-striker-replacement) ).
2. Remove the screws (A), then pull out the audio-HVAC subdisplay unit (B).
3. Disconnect the connector (C) and remove the audio-HVAC subdisplay unit.
4. Install the audio-HVAC subdisplay unit in the reverse order of removal.

Without navigation

Note. Put on gloves to protect your hands. Take care not to scratch the dashboard.

Scheme 196

1. Remove the center panel trim (see «CENTER PANEL REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/gauges-instrument-panels/#dashboard-instrument-panel__center-panel-removalinstallation) ).
2. Remove the screws (A), then pull out the audio-HVAC display unit (B).
3. Disconnect the connector (C) and remove the audio-HVAC display unit.
4. Install the audio-HVAC display unit in the reverse order of removal.

Scheme 197

1. Remove the door panel (see «FRONT DOOR PANEL REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/exterior-body-panels/#doors__front-door-panel-removalinstallation) ).
2. Remove the bolt (A). Then lift the speaker straight up to release the lower clips (B). NOTE: If you pull the speaker out too far from the door, you will damage the lower clips.
3. Disconnect the 2P connector (C), and remove the speaker.
4. Measure the resistance between the No. 1 and No. 2 terminals. There should be about 2 ohms.
5. If the resistance is not as specified, replace the door speaker.

Scheme 198

1. Remove the center upper dashboard panel (see «GLOVE BOX STRIKER REPLACEMENT»(/acura/rdx/i-2006-2009/remont/gauges-instrument-panels/#dashboard-instrument-panel__glove-box-striker-replacement) ).
2. Remove the screws (A), then pull out the speaker (B).
3. Disconnect the 2P connector (C), and remove the speaker.
4. Measure the resistance between the No. 1 and No. 2 terminals. There should be about 4 ohms.
5. If the resistance is not as specified, replace the front center speaker.

Scheme 199

Scheme 200

1. Detach the clip (A) and remove the door mirror garnish (B). Then disconnect the connector (C).
2. Carefully pry the tweeter grille (A) out of the door mirror garnish. Be careful not to damage the tweeter grille and the door mirror garnish.
3. Remove the front door tweeter (B) from the speaker grille.
4. Measure the resistance between the front door tweeter 2P connector No. 1 and No. 2 terminals. There should be about 3.3 ohms.
5. If the resistance is not as specified, replace the front door tweeter.

Scheme 201

Scheme 202

Scheme 203

1. Detach the clip (A) and remove the door mirror garnish (B). Then disconnect the connector (C).
2. Carefully pry the tweeter grille (A) out of the door mirror garnish. Be careful not to damage the tweeter grille and the door mirror garnish.
3. Remove the front door tweeter (B) from the speaker grille.
4. Check the capacitor (C) condition. If any problem is found, replace the front door tweeter.
5. Measure the resistance between the front door tweeter (A) No. 2 terminal and the outside terminal of the capacitor. There should be about 6 ohms.
6. If the resistance is not as specified, replace the front door tweeter.

Scheme 204

1. Remove the quarter-pillar trim (see «TRIM REMOVAL/INSTALLATION - REAR SIDE AREA»(/acura/rdx/i-2006-2009/remont/exteriorinterior-trim/#interior-trim__trim-removalinstallation-rear-side-area) ).
2. Disconnect 2P connector (A), then remove the bolts (B) and pull out the speaker (C).
3. Measure the resistance between the No. 1 and No. 2 terminals. There should be about 4 ohms.
4. If the resistance is not as specified, replace the rear tweeter.

Scheme 205

1. Remove the right rear side trim panel (see «TRIM REMOVAL/INSTALLATION - REAR SIDE AREA»(/acura/rdx/i-2006-2009/remont/exteriorinterior-trim/#interior-trim__trim-removalinstallation-rear-side-area) ).
2. Disconnect the 2P connector (A), then remove the bolts (B) and nuts (C), then pull out the subwoofer (D).
3. Measure the resistance between the No. 1 and No. 2 terminals. There should be about 2.3 ohms.
4. If the resistance is not as specified, replace the subwoofer.

Scheme 206

1. Remove the right rear side trim panel (see «TRIM REMOVAL/INSTALLATION - REAR SIDE AREA»(/acura/rdx/i-2006-2009/remont/exteriorinterior-trim/#interior-trim__trim-removalinstallation-rear-side-area) ).
2. Disconnect 8P connector (A), then remove the bolts (B) and nuts (C), then pull out the subwoofer (D). Input Test
3. With the connector still disconnected, make the input tests at the connector according to the table. INPUT TESTS CHART Terminal Test 5 Measure the voltage to ground with all conditions: There should be battery voltage. 6 Measure the voltage to ground with audio power switch ON: There should be battery voltage.
4. Reconnect the connector to the subwoofer, and make the input test at the connector according to the table. INPUT TESTS CHART Terminal Test 4 Measure the voltage to ground with all conditions: There should be less than 1 V.
5. If the result of the input test is OK and the subwoofer has no sound, replace the subwoofer.

Scheme 207

1. Remove the navigation unit (see «NAVIGATION UNIT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/navigation-system/#navigation-system__navigation-unit-removalinstallation) ).
2. Loosen the mounting bolts (A), then pull out the stereo amplifier (B).
3. Disconnect the connectors (C) and remove the stereo amplifier.
4. Install the stereo amplifier in the reverse order of removal.

Scheme 208

1. Remove the passenger's console cover (see «CENTER CONSOLE REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/exteriorinterior-trim/#consoles__center-console-removalinstallation) ).
2. Loosen the mounting bolts (A), then pull out the stereo amplifier (B).
3. Disconnect the connectors (C) and remove the stereo amplifier.
4. Install the stereo amplifier in the reverse order of removal.

With AcuraLink

Note. The AcuraLink must be reactivated by Acura Client Services when: The AcuraLink control unit (XM receiver) is replaced. DATA RESET was selected while in the self-diagnostic function. Vehicle ownership changes.

Scheme 209

1. Remove the door sill and the right kick panel (see «FRONT DOOR PANEL REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/exterior-body-panels/#doors__front-door-panel-removalinstallation) ).
2. Remove the glove box (see «GLOVE BOX REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/gauges-instrument-panels/#dashboard-instrument-panel__glove-box-removalinstallation) ).
3. Remove the passenger's dashboard undercover (see «DASHBOARD SIDE VENT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/gauges-instrument-panels/#dashboard-instrument-panel__dashboard-side-vent-removalinstallation) ).
4. Remove the bolt (A) and loosen the bolt (B) from the AcuraLink control unit (XM receiver) (C).
5. Disconnect the connectors (D).
6. Release the AM/FM antenna lead from its holder.
7. Lower the AcuraLink control unit (XM receiver) through the footwell area.
8. Install the AcuraLink control unit (XM receiver) in the reverse order of removal. If you replaced the AcuraLink control unit, make sure it has the latest software (see «GENERAL TROUBLESHOOTING INFORMATION»(/acura/rdx/i-2006-2009/remont/entertainment-systems/#acuralink) ).

Scheme 210

1. Remove the door sill and the right kick panel (see «FRONT DOOR PANEL REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/exterior-body-panels/#doors__front-door-panel-removalinstallation) ).
2. Remove the glove box (see «GLOVE BOX REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/gauges-instrument-panels/#dashboard-instrument-panel__glove-box-removalinstallation) ).
3. Remove the passenger's dashboard undercover (see «DASHBOARD SIDE VENT REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/gauges-instrument-panels/#dashboard-instrument-panel__dashboard-side-vent-removalinstallation) ).
4. Remove the bolt (A) and loosen the bolt (B) from the XM receiver (C).
5. Disconnect the connectors (D) and pull out the XM receiver.
6. Lower the XM receiver through the footwell area.
7. Install the XM receiver in the reverse order of removal.

Scheme 211

1. Remove the center panel (see «CENTER PANEL REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/gauges-instrument-panels/#dashboard-instrument-panel__center-panel-removalinstallation) ).
2. Remove the screws (A), then pull out the audio switch panel (B) from the center panel (C).
3. If necessary, remove the dial knob (D) and bulbs (E).
4. Install the audio switch panel in the reverse order of removal.

Scheme 212

Scheme 213

1. Remove the steering wheel (see «STEERING WHEEL REMOVAL»(/acura/rdx/i-2006-2009/remont/manual-power-steering/#power-steering-system__steering-wheel-removal) ).
2. Remove the audio remote switch (see «STEERING WHEEL DISASSEMBLY/REASSEMBLY»(/acura/rdx/i-2006-2009/remont/manual-power-steering/#power-steering-system) ).
3. Measure the resistance between the No. 7 and No. 9 terminals in each switch position according to the table. TERMINAL RESISTANCE REFERENCE Position Resistance No button pressed About 10 k ohms MODE About 3.7 kohms CH (+) About 1.7 kohms CH (-) About 775 ohms (VOL.UP) About 357 ohms (VOL.DOWN) About 100 ohms
4. If the resistance is not as specified, replace the audio remote switch.
5. Use a diode tester between the terminals in each switch position according to the table.
6. If the diode test is not as specified, replace the audio remote switch (see «STEERING WHEEL DISASSEMBLY/REASSEMBLY»(/acura/rdx/i-2006-2009/remont/manual-power-steering/#power-steering-system) ).

Scheme 214

1. Pull down the rear portion of the headliner (see «HEADLINER REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/exteriorinterior-trim/#interior-trim__headliner-removalinstallation) ). Take care not to damage the headliner.
2. Disconnect the AM/FM antenna lead connector (A) and the XM antenna lead connector (B), then remove the nut (C) from the AM/FM/XM antenna (D).
3. Remove the AM/FM/XM antenna and the antenna mast (E).
4. Install the antenna in the reverse order of removal.

Scheme 215

1. Pull down the rear portion of the headliner (see «HEADLINER REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/exteriorinterior-trim/#interior-trim__headliner-removalinstallation) ). Take care not to bend the headliner excessively.
2. Disconnect the AM/FM antenna lead connector (A), then remove the nut (B) from the AM/FM antenna (C).
3. Remove the AM/FM antenna and the antenna mast (D).
4. Install the antenna in the reverse order of removal.

See also:
• GROUND TO COMPONENTS INDEX
• CONTROL UNIT INPUT TEST/REPLACEMENT
• PCM REPLACEMENT
• GAUGE CONTROL MODULE REPLACEMENT
• CABLE REEL REPLACEMENT
• CENTER CONSOLE REMOVAL/INSTALLATION
• CENTER CONSOLE DISASSEMBLY/REASSEMBLY
• GLOVE BOX STRIKER REPLACEMENT
• CENTER PANEL REMOVAL/INSTALLATION
• FRONT DOOR PANEL REMOVAL/INSTALLATION
• TRIM REMOVAL/INSTALLATION - REAR SIDE AREA
• NAVIGATION UNIT REMOVAL/INSTALLATION
• GLOVE BOX REMOVAL/INSTALLATION
• DASHBOARD SIDE VENT REMOVAL/INSTALLATION
• GENERAL TROUBLESHOOTING INFORMATION
• STEERING WHEEL REMOVAL
• STEERING WHEEL DISASSEMBLY/REASSEMBLY
• HEADLINER REMOVAL/INSTALLATION
• POOR AM OR FM RADIO RECEPTION OR INTERFERENCE
• AUDIO UNIT POWER SWITCH WILL NOT TURN ON (NO INFORMATION DISPLAY AND NO SOUND)
• NO SOUND IS HEARD FROM THE SPEAKER(S) (DISPLAY IS NORMAL) (WITH ELS AUDIO SYSTEM)
• RADIO PRESET MEMORY IS LOST
• VOLUME DOES NOT CHANGE
• VOLUME DOES NOT INCREASE WITH SPEED
• VOLUME IS TOO HIGH OR TOO LOW WHEN DRIVING AT FREEWAY SPEEDS
• RADIO TUNER DOES NOT CHANGE STATIONS
• AUDIO REMOTE SWITCH DOES NOT WORK PROPERLY
• AUDIO DISC DOES NOT LOAD
• AUDIO DISC DOES NOT EJECT
• AUDIO DISC CHANGER DOES NOT LOAD ALL SIX DISCS
• AUDIO DISC CHANGER DOES NOT MOVE BETWEEN DISCS
• AUDIO DISC DOES NOT PLAY
• AUDIO DISC SKIPS
• ERROR CODE: XM NO SIGNAL IS DISPLAYED
• ERROR CODE: XM ANTENNA IS DISPLAYED
• XM RADIO DISPLAY IS BLANK AND NO STATION INFORMATION IS DISPLAYED (WITH ACURALINK)
• XM RADIO PRESET MEMORY IS LOST
• POOR OR NO SOUND WITH XM RADIO (AUDIO UNIT DOES DISPLAY XM CHANNELS)
• SEEK STOP TEST
• SELF-DIAGNOSTIC FUNCTION
• SOUND QUALITY DIAGNOSIS
• ERROR CODE LIST
• PHASE TEST
• ELECTRICAL NOISE TEST
• SOUND BALANCE TEST
• SOUND JUDGING