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23-15723-157
Voice Control Switch Replacement Microphone Replacement
B E
D
A C
B
A
A B
SRS components are located in this area. Review the
SRS component location (see page 24-11).
Also review the precautions and procedures (see page
24-13) in the SRS section before doing repairs or
service.
1. Remove the steering wheel (see page 17-6).
2. Remove the voice control switch (see page 17-7).
3. Install the audio remote switch in the reverse order of removal. 1. Remove the front individual map light lens (A).
2. Remove the bolts (B), then disconnect the
connectors, and remove the map lights housing (C).
3. Carefully pry off the moonroof switch (D) from the map light housing while pressing in on the
retaining tabs (E).
4. From the moonroof switch (A), remove the screw and microphone (B).
5. Install the microphone in the reverse order of removal.
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23-158Navigation System
GPS Antenna Removal/Installation
A
B
1. Remove the navigation unit (see page 23-155).
2. Remove the instrument panel (see page 20-98).
3. Remove the wire harness clip (A), screws, and GPS
antenna (B).
4. Install the antenna in the reverse order of removal.
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(#'/)
Audio, Navigation, andTelematics
Audio System
Navigation System HandsFreeLink System
Audio, Navigation, and Telematics (’09 model)
....................... .......................
Special Tools . 23-160
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................................. .............
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Component Location
Index . 23-161
Symptom Troubleshooting Index . 23-162
System Description . 23-164
Circuit Diagram . 23-184
Self-diagnostic Function . 23-190
Error Codes . 23-194
Symptom Troubleshooting . 23-196
Sound Quality Diagnosis . 23-251
Audio Unit Removal/ Installation . 23-256
XM Receiver Removal/ Installation . 23-258
USB Adapter Unit Replacement . 23-258
Stereo Amplifier Removal/ Installation . 23-259
Speaker Replacement . 23-259
Auxiliary Jack Assembly Replacement . 23-261
USB Adapter Replacement . 23-262
Audio Remote Switch Test . 23-262
Audio Remote Switch Replacement . 23-263
AM/FM Antenna Amplifier Replacement . 23-263
XM Antenna Replacement . 23-264
AM/FM Antenna Repair . 23-264
.......................................................
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Component Location
Index . 23-265
General Troubleshooting Information . 23-266 .................................
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DTC Troubleshooting
Index . 23-275
Symptom Troubleshooting Index . 23-276
System Description . 23-279
Circuit Diagram . 23-296
System Diagnostic Mode . 23-297
DTC Troubleshooting . 23-320
Symptom Troubleshooting . 23-338
CD, DVD, and PC Card Removal/Installation . 23-354
Navigation Unit Removal/ Installation . 23-355
Voice Control Switch Test . 23-357
Voice Control Switch Replacement . 23-357
HFL-Navigation Microphone Replacement . 23-358
GPS Antenna Removal/ Installation . 23-358
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Component Location
Index . 23-359
General Troubleshooting Information . 23-360
DTC Troubleshooting Index . 23-370
Symptom Troubleshooting Index . 23-371
System Description . 23-372
HFL System Troubleshooting . 23-373
Circuit Diagram . 23-374
DTC Troubleshooting . 23-376
Symptom Troubleshooting . 23-382
HFL Switch Test . 23-387
Control Unit Input Test/ Replacement . 23-388
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(#'%)Ref. No. Tool Number Description Qty
23-160
Audio, Navigation, and Telematics
Special Tools
07AAZ-SDBA100
Diagnostics CD 1
07AAZ-SDBA200 (ABEX-TCD-725B) Skip Test CD 1
07AAZ-SDBA300 (ABEX-TCD-721) Skip Test CD 1
,,
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23-161
Audio System
Component Location Index
RIGHT TWEETER
AUXILIARY
JACK ASSEMBLY
AUDIO UNIT (Without navigation)
LEFT TWEETER
AUDIO REMOTE SWITCH
LEFT REAR SPEAKER
FRONT PASSENGER’S
DOOR SPEAKER
AM/FM ANTENNA SUBLEAD
DRIVER’S DOOR SPEAKER
AM/FM ANTENNA LEAD
AM/FM ANTENNA AMPLIFIER
RIGHT REAR SPEAKER
AM/FM ANTENNA NAVIGATION UNIT (With navigation)
STEREO AMPLIFIER
(Type S model)
XM ANTENNA (With navigation)
XM ANTENNA LEAD
XM RECEIVER (With navigation)
SUBWOOFER
(Type S model)
USB ADAPTERUSB ADAPTER UNIT Replacement, page 23-260
Connector Inputs
and Outputs, page 23-183
Replacement, page 23-261
Connector Inputs and
Outputs, page 23-174
Removal/Installation, page 23-256
Replacement, page 23-260
Replacement, page 23-263
Test, page 23-262
Replacement, page 23-260
Replacement, page 23-259
Replacement, page 23-259
Replacement, page 23-263
Replacement, page 23-260
Repair, page 23-264 Connector Inputs and
Outputs, page 23-170
Removal/Installation, page 23-355
Connector Inputs and Outputs, page 23-177
Removal/Installation, page 23-259
Replacement, page 23-264
Connector Inputs and Outputs, page 23-179
Removal/Installation, page 23-258
Replacement,
page 23-261 Replacement, page 23-262Connector Inputs and Outputs, page 23-181
Replacement, page 23-258
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Symptom Diagnostic procedure Also check for
23-162
Audio System
Symptom Troubleshooting Index
Poor AM or FM radio reception or
interference (with navigation)
Symptom Troubleshooting (see page 23-
196) AM/FM antenna lead and/or
sublead short or open in the
wire
Poor AM or FM radio reception or
interference (without navigation) Symptom Troubleshooting (see page 23-
199) AM/FM antenna lead and/or
sublead short or open in the
wire
Audio unit power switch will not
turn on (No information display
and no sound) (with navigation) Symptom Troubleshooting (see page 23-
202)
Audio unit power switch will not
turn on (No information display
and no sound) (without
navigation) Symptom Troubleshooting (see page 23-
203)
Audio unit power switch will not
turn off (with navigation) Symptom Troubleshooting (see page 23-
205)
Audio unit power switch will not
turn off (without navigation) Symptom Troubleshooting (see page 23-
206)
No sound is heard from the
speaker(s) (display is normal)
(with navigation) Symptom Troubleshooting (see page 23-
206)
No sound is heard from the
speaker(s) (display is normal)
(without navigation) Symptom Troubleshooting (see page 23-
215)
Auxiliary i nput sound is low or
cannot be heard Symptom Troubleshooting (see page 23-
217)
Audio system sound is weak or
distorted (display is normal) Symptom Troubleshooting (see page 23-
220)
Radio preset memory is lost Symptom Troubleshooting (see page 23-221) Internal error
Volume does not change Symptom Troubleshooting (see page 23- 221)
Volume does not increase with
speed (with navigation) Symptom Troubleshooting (see page 23-
222)
Volume does not increase with
speed (without navigation) Symptom Troubleshooting (see page 23-
223)
Volume is too high or too low
when driving at freeway speeds Symptom Troubleshooting (see page 23-
224)
Radio tuner does not change
stations Symptom Troubleshooting (see page 23-
224)
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SymptomDiagnostic procedure Also check for
23-163
Navigation unit button
illumination does not work (with
navigation)Symptom Troubleshooting (see page 23-
225)
Audio unit button illumination
does not work (without
navigation) Symptom Troubleshooting (see page 23-
226)
Display does not dim or brighten
with dimmer (without navigation) Symptom Troubleshooting (see page 23-
227)
Audio disc does not load Symptom Troubleshooting (see page 23- 228)
Audio disc does not eject Symptom Troubleshooting (see page 23-228)
Audio disc does not play Symptom Troubleshooting (see page 23- 229)
Audio disc skips Symptom Troubleshooting (see page 23- 229)
Audio remote switch does not
work properly (with navigation) Symptom Troubleshooting (see page 23-
230)
Audio remote switch does not
work properly (without
navigation) Symptom Troubleshooting (see page 23-
232)
Audio disc cannot be inserted
and/or ejected (with navigation) Symptom Troubleshooting (see page 23-
233)
Display can be opened and/or
closed even when an audio disc is
being inserted or ejected Replace the navigation unit (see page
23-355)
PC card will not play/card icon on
audio screen cannot be selected
(with navigation) Symptom Troubleshooting (see page 23-
234)
USB input sound is low or cannot
be heard (with navigation) Symptom Troubleshooting (see page 23-
235) Requirement of the USB
devices (see Owner’s Manual)
USB input sound is low or cannot
be heard (without navigation) Symptom Troubleshooting (see page 23-
236) Requirement of the USB
devices (see Owner’s Manual)
USB device does not function
(with navigation) Symptom Troubleshooting (see page 23-
238) Requirement of the USB
devices (see Owner’s Manual)
USB device does not function
(without navigation) Symptom Troubleshooting (see page 23-
241) Requirement of the USB
devices (see Owner’s Manual)
Error code: XM NO SIGNAL or XM
ANTENNA is displayed (with
navigation) Symptom Troubleshooting (see page 23-
245)
XM radio display is blank and no
station information is displayed
(with navigation) Symptom Troubleshooting (see page 23-
245)
XM radio preset memory is lost
(with navigation) Symptom Troubleshooting (see page 23-
248)
Poor or no sound with XM radio
(Audio unit does display XM
channels) (with navigation) Symptom Troubleshooting (see page 23-
249)
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Overview
Speed-sensitive volume compensation (SVC)
23-164Audio System
System Description
The audio unit acts as the processor for all audio functions. Select audio functions from the audio unit, the audio
remote (on the steering wheel), or by using the navigation voice control system. The audio display provides the
current audio status. For vehicles with navigation, additional audio information is available by touching the audio
button on the navigation audio screen (See the owner’s manual and the navigation system manual for more details.).
The XM receiver passes its signal to the audio unit. In addition, it communicates with the audio unit via the GA-Net bus.
Any open connections in the GA-Net bus circuit causes audio and navigation functions to appear inoperative.
For vehicles with navigation, pressing the open/close switch on the navigation display panel allows access to the CD
slot and PC card.
A security signal is daisy-chained between the audio and vehicle components for integration into the vehicle’s security
system.
Some audio systems are equipped with speed-sensitive volume compensation (SVC). The navigation or audio unit
receives the vehicle speed pulse (VSP) from the ECM/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 noises
that occur 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 navigation or audio unit. The SVC comes from
the factory with the MID setting as the default.
To change the audio unit SVC setting, press the tune folder sound knob repeatedly until the SVC is displayed, rotate
the knob to adjust the SVC to the desired setting (SVC OFF, LOW, MID, or HIGH).
To change the navigation unit SVC setting, press the AUDIO button, and then select the SOUND icon on the navigation
display. Press the navigation display to select the desired setting (OFF, LOW, MID, HI).
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