RADIO
DIAGNOSIS AND TESTING - RADIO
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, REFER TO ELECTRICAL, RESTRAINTS
BEFORE ATTEMPTING ANY STEERING WHEEL,
STEERING COLUMN, OR INSTRUMENT PANEL
COMPONENT DIAGNOSIS OR SERVICE. FAILURE
TO TAKE THE PROPER PRECAUTIONS COULD
RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT
AND POSSIBLE PERSONAL INJURY.
Any diagnosis of the Audio system should
begin with the use of the DRB IIItdiagnostic
tool. For information on the use of the DRB
IIIt, refer to the appropriate Diagnostic Service
Manual.
Refer to the appropriate wiring information. The
wiring information includes wiring diagrams, proper
wire and connector repair procedures, details of wire
harness routing and retention, connector pin-out
information and location views for the various wire
harness connectors, splices and grounds.
If the vehicle is equipped with remote radio
switches located on the back of the steering wheel
spokes, and the problem being diagnosed is related to
one of the symptoms listed below, be certain to check
the remote radio switches and circuits as described
in this group, prior to attempting radio diagnosis or
repair.
²Stations changing with no remote radio switch
input
²Radio memory presets not working properly
²Volume changes with no remote radio switch
input
²Remote radio switch buttons taking on other
functions
²CD player skipping tracks
²Remote radio switch inoperative.
CAUTION: The speaker output of the radio is a
ªfloating groundº system. Do not allow any speaker
lead to short to ground, as damage to the radio
may result.
(1) Check the fuse(s) in the junction block and the
Integrated Power Module (IPM). If OK, go to Step 2.
If not OK, repair the shorted circuit or component as
required and replace the faulty fuse(s).
(2) Check for battery voltage at the fuse in the
(IPM). If OK, go to Step 3. If not OK, repair the open
circuit to the battery as required.
(3) Turn the ignition switch to the ON position.
Check for battery voltage at the fuse in the junction
block. If OK, go to Step 4. If not OK, repair the open
circuit to the ignition switch as required.(4) Turn the ignition switch to the OFF position.
Remove the radio, but do not unplug the wire har-
ness connectors. Check for continuity between the
radio chassis and a good ground. There should be
continuity. If OK, go to Step 5. If not OK, repair the
open radio chassis ground circuit as required.
(5) Connect the battery negative cable. Turn the
ignition switch to the ON position. Check for battery
voltage at the fused ignition switch output circuit
cavity of the radio wire harness connector. If OK, go
to Step 6. If not OK, repair the open circuit as
required.
(6) Turn the ignition switch to the OFF position.
Check for battery voltage at the fused B(+) circuit
cavity of the radio wire harness connector. If OK,
replace the faulty radio. If not OK, repair the open
circuit to the Ignition-Off Draw (IOD) fuse as
required.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove cup holder.
(3) Remove trim panel above cupholder by pulling
straight out.
(4) Remove center instrument panel trim panel.
(5) Remove screws holding radio to instrument
panel.
(6) Pull radio rearward to gain access to the back
of radio (Fig. 8).
(7) Disconnect the antenna cable by pulling the
locking antenna connector away from the radio (Fig.
9).
(8) Disconnect bolt holding ground strap to the
radio (if equipped).
Fig. 8 RADIO
1 - RADIO
2 - CD-PLAYER
RSAUDIO8A-9
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(9) Disconnect the wire connectors from the back
of the radio.
INSTALLATION
(1) Connect wire harness to back of radio.
(2) Install bolt holding ground strap to the radio (if
equipped).
(3) Connect antenna cable to back of radio.
(4) Position radio into instrument panel.
(5) Install screws holding radio to instrument
panel.
(6) Install center instrument panel trim.
(7) Install trim panel above cupholder.
(8) Install cupholder.
(9) Connect battery negative cable.
RADIO NOISE SUPPRESSION
COMPONENTS
DESCRIPTION
Radio noise suppression devices are factory-in-
stalled standard equipment on this vehicle. Radio
Frequency Interference (RFI) and ElectroMagnetic
Interference (EMI) can be produced by any on-board
or external source of electromagnetic energy. These
electromagnetic energy sources can radiate electro-
magnetic signals through the air, or conduct them
through the vehicle electrical system.
When the audio system converts RFI or EMI to an
audible acoustic wave form, it is referred to as radionoise. This undesirable radio noise is generally man-
ifested in the form of ªbuzzing,º ªhissing,º ªpopping,º
ªclicking,º ªcrackling,º and/or ªwhirringº sounds. In
most cases, RFI and EMI radio noise can be sup-
pressed using a combination of vehicle and compo-
nent grounding, filtering and shielding techniques.
This vehicle is equipped with factory-installed radio
noise suppression devices that were designed to min-
imize exposure to typical sources of RFI and EMI;
thereby, minimizing radio noise complaints.
Factory-installed radio noise suppression is accom-
plished primarily through circuitry or devices that
are integral to the factory-installed radios, audio
power amplifiers and other on-board electrical com-
ponents such as generators, wiper motors, blower
motors, and fuel pumps that have been found to be
potential sources of RFI or EMI.
OPERATION
There are two common strategies that can be used
to suppress Radio Frequency Interference (RFI) and
ElectroMagnetic Interference (EMI) radio noise. The
first suppression strategy involves preventing the
production of RFI and EMI electromagnetic signals
at their sources. The second suppression strategy
involves preventing the reception of RFI and EMI
electromagnetic signals by the audio system compo-
nents.
The use of braided ground straps in key locations
is part of the RFI and EMI prevention strategy.
These ground straps ensure adequate ground paths,
particularly for high current components such as
many of those found in the starting, charging, igni-
tion, engine control and transmission control sys-
tems. An insufficient ground path for any of these
high current components may result in radio noise
caused by induced voltages created as the high cur-
rent seeks alternative ground paths through compo-
nents or circuits intended for use by, or in close
proximity to the audio system components or circuits.
Preventing the reception of RFI and EMI is accom-
plished by ensuring that the audio system compo-
nents are correctly installed in the vehicle. Loose,
corroded or improperly soldered wire harness connec-
tions, improperly routed wiring and inadequate audio
system component grounding can all contribute to
the reception of RFI and EMI. A properly grounded
antenna body and radio chassis, as well as a shielded
antenna coaxial cable with clean and tight connec-
tions will each help reduce the potential for reception
of RFI and EMI.
Fig. 9 ANTENNA TO RADIO
1 - RADIO
2 - LOCKING ANTENNA CONNECTOR
3 - INSTRUMENT PANEL ANTENNA CABLE
8A - 10 AUDIORS
RADIO (Continued)
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SKIM in addition to being cut to match the mechan-
ical coding of the ignition lock cylinder. Refer to Elec-
trical, Vehicle Theft Security, Transponder Key,
Standard Procedure - Transponder Programming.
The Sentry Key's transponder is within the range
of the SKIM's transceiver antenna ring when it is
inserted into the ignition lock cylinder. When the
ignition switch is turned to the ON position, the
SKIM communicates with the Sentry Key via a radio
frequency (RF) signal. The SKIM determines if a
valid key is present based on the information it
receives from the Sentry Key. If a valid key is
detected, that fact is communicated to the PCM via
the PCI bus and the vehicle is allowed to continue
running. If an invalid key is received by the PCM or
no status at all is communicated, the vehicle will
stall after two (2) seconds of running. The indicator
light will be flashing at this point. The Sentry Key's
transponder can not be repaired. If it is faulty or
damaged, it must be replaced.
Common communication problems:
²Two transponder keys too close together.
²Speed Pass too close to transponder key.
Solid indicator that there is a system failure.
²Loss of PCM communication.
²Failed antenna circuit.
STANDARD PROCEDURE - TRANSPONDER
PROGRAMMING
USING A DRB IIITSCAN TOOL
All Sentry Keys included with the vehicle are pre-
programmed to work with the Sentry Key Immobi-
lizer System (SKIS) when it is shipped from the
factory. The Sentry Key Immobilizer Module (SKIM)
can be programmed to recognize up to a total of eight
Sentry Keys. When programming a blank Sentry Key
transponder, the key must first be cut to match the
ignition lock cylinder of the vehicle for which it will
be used. The vehicle's four digit PIN code will be
required to complete this task since you will need it
to enter the Secured Access Mode in the SKIM. The
following steps must be completed using a DRB IIIt
scan tool:
(1) Insert the blank key into the ignition and turn
it to the RUN position.
(2) Using a DRB IIItscan tool, select9Theft
Alarm,99SKIM,99Miscellaneous,9and then9Program
New Key.9
(3) Enter the four digit PIN code using the DRB
IIItscan tool. When programming is completed, the
SKIM will exit Secured Access Mode and the DRB
IIItscan tool will display the results of your attempt
to program the key. One of five distinct results may
be displayed. All five are listed below:
²(Programming Successful(is displayed if the
Sentry Key programming is successful.
²(Learned Key in Ignition(is displayed if the
key in the ignition has already been programmed
into that vehicle's SKIM.
²(Eight Keys Already Learned (At The Maxi-
mum) Programming Not Done(is displayed if
eight keys have already been programmed into the
SKIM. In this case, if a new key needs to be added
due to a lost or defective key, the9Erase All Keys9
command (which requires entering the Secured
Access Mode) has to be performed. Following the
9Erase All Keys9command, all keys that will be used
to operate the vehicleMUSTbe reprogrammed to
the SKIM.
²(Programming Not Attempted(is displayed
after an9Erase All Keys9function is executed.
²(Programming Key Failed(is displayed if fur-
ther diagnosis is required.
To learn additional keys, turn the ignition OFF,
remove the learned key, insert the next new blank
key, and repeat the steps from the beginning.
ªCUSTOMER LEARNº MODE
This feature is only available on domestic vehicles
or those which have a U.S. country code designator.
This procedure requires access to at least two valid
Sentry Keys. If two valid Sentry Keys are not avail-
Fig. 1 TRANSPONDER KEY - TYPICAL
1 - MOLDED CAP
2 - TRANSPONDER
3 - MOLDED CAP REMOVED
4 - SENTRY KEY
8Q - 4 VEHICLE THEFT SECURITYRS
TRANSPONDER KEY (Continued)
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Component Page
Mid Reading Lamps.................... 8W-44
Mode Door Actuator.................... 8W-42
Multi- Function Switch........... 8W-50, 52, 53
Output Speed Sensor................... 8W-31
Overhead Console..................... 8W-49
Oxygen Sensor 1/1 Upstream............. 8W-30
Oxygen Sensor 1/2 Downstream.......... 8W-30
Park Lamp Relay...................... 8W-10
Park Lamps.......................... 8W-50
Park/Turn Signal Lamps................ 8W-50
Parking Brake Switch.................. 8W-40
Passenger Airbag...................... 8W-43
Positive Temperature Coefficients......... 8W-10
Power Liftgate Module.................. 8W-61
Power Liftgate Motor................... 8W-61
Power Mirror Switch................... 8W-62
Power Mirrors........................ 8W-62
Power Outlet......................... 8W-41
Power Seat Circuit Breaker.............. 8W-10
Power Seat Front Riser Motors........... 8W-63
Power Seat Horizontal Motors............ 8W-63
Power Seat Horizontal Position Sensors.... 8W-63
Power Seat Rear Riser Motors............ 8W-63
Power Seat Rear Riser Position Sensors.... 8W-63
Power Seat Recliner Motors.............. 8W-63
Power Seat Switches................... 8W-63
Power Window Circuit Breaker........... 8W-10
Power Window Motors.................. 8W-60
Power Window Switches................ 8W-60
Powertrain Control Module.............. 8W-30
Radiator Fan Relays................... 8W-42
Radiator Fans........................ 8W-42
Radio Choke.......................... 8W-47
Radio............................... 8W-47
Reading Lamps....................... 8W-44
Rear A/C-Heater Unit.................. 8W-42
Rear Auto Temp Control Switch........... 8W-42
Rear Blower Front Control Switch......... 8W-42
Rear Blower Motor Power Module......... 8W-42
Rear Blower Motor Relay................ 8W-42
Rear Blower Motor..................... 8W-42
Rear Blower Rear Control Switch......... 8W-42
Rear Intrusion Sensor.................. 8W-39Component Page
Rear Lamp Assemblies.................. 8W-51
Rear Mode Motor...................... 8W-42
Rear Power Outlet..................... 8W-41
Rear Temperature Motor................ 8W-42
Rear Washer Pump Motor............... 8W-53
Rear Window Defogger Grid............. 8W-48
Recirculation Door Actuator.............. 8W-42
Remote Keyless Entry Antenna........... 8W-61
Remote Radio Switches................. 8W-47
Repeater Lamps....................... 8W-52
Seat Airbag.......................... 8W-43
Seat Belt Tensioners................... 8W-43
Sentry Key Immobilizer Module.......... 8W-39
Side Impact Airbag Control Modules....... 8W-43
Siren............................... 8W-39
Sliding Door Control Modules............ 8W-61
Sliding Door Latch Sensing Switches....... 8W-61
Sliding Door Lock Motor/Ajar Switches..... 8W-61
Sliding Door Lock Motors............... 8W-61
Sliding Door Motors.................... 8W-61
Solenoid/Pressure Switch Assy............ 8W-31
Speakers............................ 8W-47
Speed Control Servo................... 8W-33
Speed Control Switches................. 8W-33
Splice Information..................... 8W-70
Starter Motor Relay.................... 8W-21
Starter Motor......................... 8W-21
Stop/Turn Signal Relays................ 8W-54
Thatcham Alarm Module................ 8W-39
Throttle Position Sensor................ 8W-30
Torque Converter Clutch Solenoid......... 8W-31
Traction Control Switch................. 8W-35
Trailer Tow Connector.................. 8W-54
Transmission Control Module............ 8W-31
Transmission Range Sensor.............. 8W-31
Turn Signal Lamps.................... 8W-52
TXV Solenoid......................... 8W-42
Vehicle Speed Sensor................... 8W-30
Vent Motors.......................... 8W-60
Visor/Vanity Lamps.................... 8W-44
Washer Fluid Level Switch.............. 8W-53
Water In Fuel Sensor................... 8W-30
Wheel Speed Sensors................... 8W-35
8W - 02 - 2 8W-02 COMPONENT INDEXRS
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8W-47 AUDIO SYSTEM
Component Page
Accessory Relay................... 8W-47-2, 5
Antenna........................... 8W-47-5
Body Control Module............. 8W-47-2, 5, 7
CD Changer....................... 8W-47-11
Clockspring......................... 8W-47-7
Diagnostic Junction Port............. 8W-47-2, 5
Front Cigar Lighter................ 8W-47-2, 5
Front Control Module............. 8W-47-2, 5, 6
Fuse 5........................... 8W-47-2, 5
Fuse 14.......................... 8W-47-2, 6
G202....................... 8W-47-2, 5, 9, 10
Integrated Power Module.......... 8W-47-2, 5, 6
Left Door Speaker................ 8W-47-3, 8, 9Component Page
Left Instrument Panel Speaker........ 8W-47-3, 8
Left Rear Pillar Speaker.............. 8W-47-10
Left Rear Speaker............... 8W-47-4, 6, 10
Left Remote Radio Switch.............. 8W-47-7
Name Brand Speaker Relay............ 8W-47-6
Radio.............. 8W-47-2, 3, 4, 5, 6, 9, 10, 11
Radio Choke........................ 8W-47-6
Right Door Speaker............... 8W-47-3, 8, 9
Right Instrument Panel Speaker...... 8W-47-3, 8
Right Rear Pillar Speaker............. 8W-47-10
Right Rear Speaker.............. 8W-47-4, 6, 10
Right Remote Radio Switch............ 8W-47-7
RS8W-47 AUDIO SYSTEM8W-47-1
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Component Page
Memory Set Switch.................. 8W-80-84
Message Center (High Line)........... 8W-80-85
Mode Door Actuator (ATC)............ 8W-80-85
Mode Door Actuator (MTC)............ 8W-80-85
Multi-Function Switch............... 8W-80-85
Output Speed Sensor (EATX).......... 8W-80-86
Overhead Console (Except Base)........ 8W-80-86
Oxygen Sensor 1/1 Upstream (Gas)...... 8W-80-86
Oxygen Sensor 1/2 Downstream (Gas) . . . 8W-80-87
Park/Neutral Position Switch (ATX)..... 8W-80-87
Passenger Airbag................... 8W-80-87
Passenger Blend Door Actuator (ATC) . . . 8W-80-87
Passenger Blend Door Actuator (MTC) . . . 8W-80-87
Passenger Door Courtesy Lamp........ 8W-80-88
Passenger Door Lock Switch........... 8W-80-88
Passenger Folding Mirror Relay
(Built-Up-Export)................. 8W-80-88
Passenger Heated Seat Back........... 8W-80-88
Passenger Heated Seat Cushion........ 8W-80-88
Passenger Heated Seat Module C1...... 8W-80-89
Passenger Heated Seat Module C2...... 8W-80-89
Passenger Heated Seat Module C3...... 8W-80-89
Passenger Power Seat Front Riser Motor . 8W-80-89
Passenger Power Seat Horizontal Motor . . 8W-80-90
Passenger Power Seat Rear Riser Motor . . 8W-80-90
Passenger Power Seat Recliner Motor.... 8W-80-90
Passenger Power Seat Switch.......... 8W-80-90
Passenger Power Window Motor........ 8W-80-90
Passenger Power Window Switch....... 8W-80-91
Passenger Seat Belt Switch........... 8W-80-91
Passenger Seat Belt Tensioner......... 8W-80-91
Power Folding Mirror Switch
(Built-Up-Export)................. 8W-80-91
Power Liftgate Module C1............ 8W-80-92
Power Liftgate Module C2............ 8W-80-92
Power Liftgate Motor................ 8W-80-92
Power Mirror Switch................. 8W-80-93
Power Outlet....................... 8W-80-93
Power Seat Circuit Breaker (30A)....... 8W-80-93
Power Window Circuit Breaker (25A).... 8W-80-93
Power Window Switch (Lowline)........ 8W-80-94
Powertrain Control Module C1 (Gas).... 8W-80-94
Powertrain Control Module C2 (Gas).... 8W-80-95
Radiator Fan No. 1 (Diesel)........... 8W-80-96
Radiator Fan No. 1 (Gas)............. 8W-80-96
Radiator Fan No. 2 (Diesel)........... 8W-80-96
Radiator Fan No. 2 (Gas)............. 8W-80-96
Radiator Fan Relay (Gas)............. 8W-80-96
Radiator Fan Relay No. 1 (Diesel)....... 8W-80-97
Radiator Fan Relay No. 2 (Diesel)....... 8W-80-97
Radiator Fan Relay No. 3 (Diesel)....... 8W-80-97
Radio C1.......................... 8W-80-98
Radio C2.......................... 8W-80-98
Radio Choke....................... 8W-80-99Component Page
Rear A/C-Heater Unit (3 Zone HVAC).... 8W-80-99
Rear Auto Temp Control Switch (ATC) . . . 8W-80-99
Rear Blower Front Control Switch
(3 Zone HVAC)................... 8W-80-99
Rear Blower Motor Power Module
C1(ATC) ....................... 8W-80-100
Rear Blower Motor Power Module C2
(ATC).......................... 8W-80-100
Rear Blower Rear Control Switch C1
(3 Zone HVAC).................. 8W-80-100
Rear Blower Rear Control Switch C2
(3 Zone HVAC).................. 8W-80-100
Rear Dome Lamp (Except Luxury)..... 8W-80-100
Rear Mode Motor (ATC)............. 8W-80-101
Rear Power Outlet................. 8W-80-101
Rear Temperature Motor (ATC)........ 8W-80-101
Rear Washer Pump Motor............ 8W-80-101
Rear Wiper Motor.................. 8W-80-101
Recirculation Door Actuator (ATC)..... 8W-80-102
Recirculation Door Actuator (MTC)..... 8W-80-102
Remote Keyless Entry Antenna
(Japan)........................ 8W-80-102
Remote Keyless Entry Module........ 8W-80-102
Right B-Pillar Switch
(Power Sliding Door).............. 8W-80-102
Right Cinch/Release Motor
(Power Sliding Door).............. 8W-80-103
Right Combination Relay (Trailer Tow) . . 8W-80-103
Right Cylinder Lock Switch.......... 8W-80-103
Right Door Speaker................. 8W-80-103
Right Fog Lamp (Built-Up-Export)..... 8W-80-103
Right Fog Lamp (Except
Built-Up-Export)................. 8W-80-104
Right Front Door Ajar Switch (Base).... 8W-80-104
Right Front Door Lock Motor/Ajar
Switch (Except Base).............. 8W-80-104
Right Front Park/Turn Signal Lamp
(Except Built-Up-Export).......... 8W-80-104
Right Front Wheel Speed Sensor...... 8W-80-104
Right Full Open Switch
(Power Sliding Door).............. 8W-80-105
Right Headlamp (Except
Built-Up-Export)................. 8W-80-105
Right Headlamp Leveling Motor
(Built-Up-Export)................ 8W-80-105
Right High Beam Lamp
(Built-Up-Export)................ 8W-80-105
Right Instrument Panel Speaker...... 8W-80-105
Right Liftgate Flood Lamp........... 8W-80-106
Right Low Beam Lamp
(Built-Up-Export)................ 8W-80-106
Right Mid Reading Lamp
(Premium/Luxury)................ 8W-80-106
Right Park Lamp (Built-Up-Export).... 8W-80-106
Right Power Mirror................. 8W-80-106
8W - 80 - 4 8W-80 CONNECTOR PIN-OUTSRS
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CONNECTOR NAME/NUMBER COLOR LOCATION FIG.
Rear Blower Motor Power Module
C2Right Quarter N/S
Rear Blower Rear Control Switch
C1Overhead N/S
Rear Blower Rear Control Switch
C2Overhead N/S
Rear Power Outlet RD Left Quarter Panel 40
Rear Temperature Motor Right Quarter N/S
Rear Washer Pump Motor BK Right Fender Well 3
Rear Wiper Motor GY At Motor 42
Recirculation Door Actuator GY Right Side of HVAC N/S
Remote Keyless Entry Antenna
(JAPAN)BK Right Upper Instrument Panel 23
Remote Keyless Entry Module BK/RD Top Left of I.P. 15, 16
Right B-Pillar Switch GY Right B Pillar 33
Right Cinch/Release Motor GY Rear of Sliding Door 38
Right Combination Relay BK Left Quarter Panel N/S
Right Cylinder Lock Switch BK Right Front Door 37
Right Door Speaker BK/RD At Speaker N/S
Right Fog Lamp WT At Lamp 3
Right Front Door Ajar Switch BK At B Pillar N/S
Right Front Door Lock Motor/Ajar
SwitchBK Right Front Door 37
Right Front Park/Turn Signal Lamp BK At Lamp 1, 3
Right Front Wheel Speed Sensor GY Right Fender Side Shield 9, 12, 13
Right Full Open Switch BK Right Sliding Door 38
Right Headlamp BK At Lamp 1, 3
Right Headlamp Leveling Motor WT At Right Headlamp N/S
Right High Beam Lamp BK At Right Headlamp N/S
Right Instrument Panel Speaker BK At Speaker 15, 18, 19
Right Liftgate Flood Lamp BK At Lamp 42
Right Low Beam Lamp BK At Right Headlamp N/S
Right Mid Reading Lamp GY At Lamp N/S
Right Park Lamp BK AT Lamp N/S
Right Power Mirror BK At Mirror 15, 19, 23
Right Rear Lamp Assembly BK At Lamp 41
Right Rear Pillar Speaker BK At Speaker 41
Right Rear Reading Lamp GY At Lamp N/S
Right Rear Speaker BK/RD At Speaker 41
Right Rear Vent Motor NAT At Motor 41
Right Rear Wheel Speed Sensor BK Center Rear of Floor Pan 41
Right Remote Radio Switch BK At Steering Wheel N/S
Right Repeater Lamp GY Right Front Fender 33
RS8W-91 CONNECTOR/GROUND/SPLICE LOCATION8W-91-9
CONNECTOR/GROUND/SPLICE LOCATION (Continued)
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