Entertainment System Chevrolet Chevy Express H2500

Fastener Tightening Specifications

Fastener Tightening Specifications

Schematic and Routing Diagrams

For Chevy Express, see

1. G1500: «RADIO»(ref-154376-S15619850142003080900000)
2. G2500: «RADIO»(ref-154377-S16889448322003080900000)
3. G3500: «RADIO»(ref-154378-S14192489362003080900000)
4. H1500: «RADIO»(ref-154379-S24201128842003080900000)
5. H2500: «RADIO»(ref-154380-S00164468622003080900000)

For Cutaway 3500, see RADIO .

For RV Cutaway 3500, see RADIO .

For GMC Savana, see

1. G1500: «RADIO»(ref-154351-S35094122002003080900000)
2. G2500: «RADIO»(ref-154352-S09262806072003080900000)
3. G3500: «RADIO»(ref-154353-S31313843112003080900000)
4. H1500: «RADIO»(ref-154354-S11817386412003080900000)
5. H2500: «RADIO»(ref-154355-S04953695782003080900000)

For Savana Camper Special 3500, see RADIO .

For Savana Special 3500, see RADIO .

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Diagnostic Starting Point - Entertainment

Begin the system diagnosis with the Diagnostic System Check - Radio/Audio System . The Entertainment System Diagnostic System Check will provide the following information

1. The identification of the control modules which command the system
2. The ability of the control modules to communicate through the serial data circuit
3. The identification of any stored diagnostic trouble codes (DTCs) and their status

The use of the Entertainment System Diagnostic System Check will identify the correct procedure for diagnosing the system and where the procedure is located.

Test Description

The numbers below Refer to the step numbers on the diagnostic table.

1. 2. Lack of communication may be due to a partial malfunction of the class 2 serial data circuit or due to a total malfunction of the class 2 serial data circuit. The specified procedure will determine the particular condition.
2. 3. The symptom list in Symptoms will determine the correct diagnostic procedure to use.
3. 4. The presence of DTCs which begin with "U" indicate some other module is not communicating. The specified procedure will compile all the available information before tests are performed.

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Scan Tool Data Definitions

8 Digit GM Part Number: The scan tool displays an 8 digit alphanumeric number. The part number of the module.

Antenna Enable: The scan tool displays if the antenna is Active/Inactive.

Balance: The scan tool displays % percent. The Balance data parameter refers to the right to left audio output balance in percent.

Bass: The scan tool displays % percent. The Bass data parameter refers to the percentage of bass commanded by the radio control head.

Battery Voltage: The scan tool displays the current voltage of the battery in volts.

CD Changer: The scan tool displays Connected/Not Connected. The module displays Connected when the CD sense wire has been grounded to signal that a remote CD changer is present.

CD Inserted: The scan tool displays Yes/No. This data parameter indicates whether the CD player recognizes an inserted disc.

Chime Type: The scan tool displays what the chime type is set.

Fade: The scan tool displays % percent. This data parameter refers to the front to back audio output Fade in percent.

Ignition Since Current DTC: The scan tool displays Cycles. This data parameter indicates the number of ignition cycles since a current DTC was set.

Julian Date of Build: The scan tool displays 0-999. The month and year that the module was built.

Midrange: The scan tool displays 0-100%. The amount of mid range selected.

Personalization: The scan tool displays Driver 1/Driver 2. This data parameter refers to the personalization currently selected.

Phone: The scan tool displays Present/Not Present. This data parameter indicates if the radio detects the presence of a cellular telephone.

Signal Strength: The scan tool displays dB (decibel). This data parameter indicates the strength of the tuned frequency in dB.

Source: The scan tool displays Off/Tuner/CD/Cassette. This data parameter indicates ] the source that is operating.

Speed Compensated Volume: The scan tool displays On/Off. The state of the speed compensated volume function.

Theft Armed: The scan tool displays VIN/No VIN. The scan tool displays VIN when the theft mode has been turned ON by recognizing a valid VIN.

Theft Locked: The scan tool displays Locked/Unlocked. The scan tool displays Locked when the radio receives the incorrect VIN number from the PCM across Class 2 lines.

Treble: The scan tool displays % percent. This data parameter indicates the amount of treble in percent selected at the radio.

Volume: The scan tool displays % percent. This data parameter indicates the amount of volume (in percent) selected at the radio.

Year Module Built: The scan tool displays a four digit number. The production year the module was manufactured.

Diagnostic Trouble Code (DTC) List

Diagnostic Trouble Code (DTC) List

Circuit Description

When the radio is powered up, the radio supplies low level audio signals to the speakers. If the vehicle is equipped with an audio amplifier, the amplifier will boost the signal sent to the speakers.

Conditions for Running the DTC

The test is performed when the radio switches from OFF to ON. The radio will continue to test for the fault once every 0.5 seconds.

Conditions for Setting the DTC

The radio sets a current status for this DTC when a short to ground or voltage is detected on any of the speaker channels for 1.5 seconds.

Action Taken When the DTC Sets

No sound is present from one or more of the speakers.

Conditions for Clearing the DTC

The fault condition is not present for 5 seconds.

The number below refers to the step number on the diagnostic table.

1. 3. This step isolates the fault condition.

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Symptoms - Entertainment

Important: The following steps must be completed before using the symptom tables.

1. Perform the «Diagnostic System Check - Radio/Audio System»(/chevrolet/chevy-express-h2500/2003-2003/remont/entertainment-systems/#entertainment-system) before using the Symptom Tables in order to verify that all of the following are true: There are no DTCs set. The control module(s) can communicate via the serial data link.
2. Review the «Radio/Audio System Description and Operation»(/chevrolet/chevy-express-h2500/2003-2003/remont/entertainment-systems/#entertainment-system__radioaudio-system-description-and-operation) in order to familiarize yourself with the system functions.

Visual/Physical Inspection

1. Inspect for aftermarket devices which could affect the operation of the Radio/Audio System. Refer to «CHECKING AFTERMARKET ACCESSORIES»(/chevrolet/chevy-express-h2500/2003-2003/remont/electrical-component-locations/#wiring-systems-general-information__checking-aftermarket-accessories) .
2. Inspect for easily accessible or visible system components for obvious damage or conditions which could cause the symptom.

Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to TESTING FOR INTERMITTENT AND POOR CONNECTIONS .

Symptom List

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom

1. «Radio Poor Reception»(/chevrolet/chevy-express-h2500/2003-2003/remont/entertainment-systems/#entertainment-system)
2. «Radio Displays LOC, LOCKED, or CODE»(/chevrolet/chevy-express-h2500/2003-2003/remont/entertainment-systems/#entertainment-system)
3. «Radio Displays CLN or CLEAN»(/chevrolet/chevy-express-h2500/2003-2003/remont/entertainment-systems/#entertainment-system)
4. «Radio Displays CAL or CAL ERR»(/chevrolet/chevy-express-h2500/2003-2003/remont/entertainment-systems/#entertainment-system)
5. «Tape Player Weak, Slow, or Garbled Output»(/chevrolet/chevy-express-h2500/2003-2003/remont/entertainment-systems/#entertainment-system)
6. «Reduced Volume - One or More Speakers»(/chevrolet/chevy-express-h2500/2003-2003/remont/entertainment-systems/#entertainment-system)
7. «Speakers Inoperative - One or More»(/chevrolet/chevy-express-h2500/2003-2003/remont/entertainment-systems/#entertainment-system__speakers-inoperative-one-or-more)
8. «Radio Audio Inoperative at Rear Seat Audio (RSA) Control»(/chevrolet/chevy-express-h2500/2003-2003/remont/entertainment-systems/#entertainment-system)

Audio System Troubleshooting Hints

Many conditions that affect radio operation may be corrected without removing the radio from the car. Verify the condition, and follow the diagnostic procedures in order to isolate and correct the condition. In order to properly diagnose any audio system problems, ensure that you have a fully charged battery.

Preliminary Inspections

Important: When testing the audio system for poor reception or noise, the vehicle should be outside away from metal buildings and utility lines, with the hood and rear compartment closed.

1. Check for any aftermarket equipment that may have been installed on the vehicle. If aftermarket equipment is found disconnect it and check if the audio noise is still present. Inspect that the antenna connector and the antenna coaxial cable are clean and tight.
2. For reception concerns, first determine if the customer is within the listening area of the stations they are attempting to receive.
3. Stations at the lower end of the FM band are more susceptible to audio noises than stations at the higher end.
4. If the noise is only from one speaker check for the following before speaker replacement: Isolate the noise using the J 39916-A CD and Cassette Diagnostic Audio Kit. Inspect the speaker connections to ensure they are clean and tight. Refer to «TESTING FOR INTERMITTENT AND POOR CONNECTIONS»(/chevrolet/chevy-express-h2500/2003-2003/remont/electrical-component-locations/#wiring-systems-general-information__testing-for-intermittent-and-poor-connections) . Inspect for a loose or incorrectly installed speaker or surrounding trim. Loose trim can cause a buzz or flutter which sounds like a malfunctioning speaker.
5. Ignition noise on the FM band may be an indication of an ignition system problem.
6. Inspect that all vehicle grounds are clean, tight and free of corrosion.
7. Inspect the rear defogger grid lines for large breaks or dark spots.
8. Inspect the connections at the radio antenna module if equipped, to ensure that they are clean and tight.
9. Compare the customers vehicle to another of similar model and audio system to determine if the condition is abnormal.

Identifying Concerns

1. In order to isolate the source of the noise/poor reception, identify the ignition switch position that the concern is most noticeable: Turn the ignition switch to the accessory position. Turn ON the radio. Seek up 88-108 FM then 550-1600 AM. Record the number of valid radio stations where the tuner stops. Repeat these steps with the ignition ON, and the engine OFF then again with the engine running.
2. Return the ignition switch to the position that the concern was most noticeable.
3. Remove fuses or circuit breakers one at a time until the noise has been eliminated.
4. Identify what systems or components are powered by the fuse.
5. Reinstall all fuses and circuit breakers.
6. Disconnect the components powered by the fuse one at a time until the concern has been eliminated.

Corrective Action

1. Inspect the ground integrity of the component or system causing the noise.
2. Malfunctioning and marginal components such as relays and solenoids may cause noise and/or poor reception.
3. Always use a braided ground strap when applying additional grounds and keep the ground strap as short as possible.
4. If the noise source is found to be coming from the vehicle harness: Route the antenna cable separately from the wire harness that is emitting the noise. Use aluminum or nickel tape in order to shield the antenna cable. Try variations of the following repairs: Try adding only aluminum or nickel tape before adding a ground strap to the tape. Wrap a ground strap 360 degrees around the tape, securing the other end of the strap to chassis ground.

Important: When installing suppression devices, signal wires such as sensor and communication circuits should not be suppressed. Battery and ignition voltage circuits are the best choices for suppressing.

1. Capacitors work best on switch pops and low frequency noise.
2. Filters work best on high frequency whines and static.
3. After adding any suppression device, inspect all of the vehicle systems including those not related to the audio system, for proper operation and function.
4. Whenever possible, make a test harness that includes filters or capacitors. Always inspect the effectiveness and operation before permanent installation.
5. If an audible pop is caused due to operating a switch, perform the following repairs as necessary: Add a capacitor across the contacts of the switch. Add a capacitor from the battery positive voltage (B+) side of the switch to chassis ground. Add a capacitor from the ground side of the switch to chassis ground.
6. Use the following available noise suppression devices: 220 micro farad (50 V) capacitor GM P/N 12278950 - Works well for ignition system related noise. 0.47 micro farad capacitor GM P/N 1227894 - Works well for switches and relays. Feed through capacitor GM P/N 477371 - Works well for high current situations. Filter package GM P/N 1224205 - Works well for low current situations. Fuel pump suppressor GM P/N 25027405 21 inch braided ground strap GM P/N 8910791 19 inch braided ground strap GM P/N 6286800 10.5 inch braided ground strap GM P/N 6287160 8.5 inch braided ground strap GM P/N 12091511

Generator Whine Concerns

1. Inspect the ground terminal and cable for high resistance.
2. Inspect the generator and brackets for loose or coated mounting bolts.
3. Inspect that the ground straps between the engine and the frame are clean and tight.
4. If the noise is still present, inspect the charging system for proper operation. Refer to «DIAGNOSTIC STARTING POINT - ENGINE ELECTRICAL»(/chevrolet/chevy-express-h2500/2003-2003/remont/starter/#starting-system__diagnostic-starting-point-engine-electrical) .
5. Install a filter GM P/N 1224205 in the battery voltage feed circuit to the radio.
6. If the noise is not eliminated, install the filter in each following variation: Install the filter with the single wire side toward the radio and the ground wire attached to chassis ground. Remove the ground to the filter. Reverse the filter so the 2-wire side is toward the radio with the ground wire attached to chassis ground. Remove the ground from the filter.
7. If the filter GM P/N 1224205 causes a delay when turning the radio ON or OFF, or other problems, remove the filter and install a 0.47 micro farad capacitor to chassis ground.
8. Before reassembling the vehicle, remove any unneeded filters.
9. Test the functionality all of the vehicle systems including those not related to the audio system, for proper operation and function.

Always perform the Radio/Audio System Diagnostic System Check before proceeding with these diagnostic procedures. Refer to Diagnostic System Check - Radio/Audio System .

Antenna System Test

Important: Always zero out the DMM before taking a resistance measurement in order to ensure an accurate reading.

1. Disconnect the negative battery cable.
2. Disconnect the antenna lead-in connector from the radio receiver.
3. Measure the resistance from the negative battery cable to the coax (outer conductor) connector.
4. The resistance measured should be 0.20 Q or less.
5. Test the following when the resistance is greater than 0.20 ohms. Base of the antenna for a poor connection to body ground. The coaxial cable interconnects for a poor connection or corrosion. Test for an open or high resistance from the battery negative cable to the body. Refer to «CIRCUIT TESTING»(/chevrolet/chevy-express-h2500/2003-2003/remont/electrical-component-locations/#wiring-systems-general-information__circuit-testing) and «WIRING REPAIRS»(/chevrolet/chevy-express-h2500/2003-2003/remont/electrical-component-locations/#wiring-systems-general-information__wiring-repairs) .
6. After finding and correcting the condition, operate the system in order to verify the repair.

Perform the Antenna Checking Procedures after confirming the integrity of the antenna ground.

Antenna Checking Procedures

Perform the following tests for the type of antenna on the vehicle.

Mast Antennas

Unplug antenna lead-in connector from radio receiver and plug a test antenna into radio. Make sure antenna base is grounded to the vehicle chassis and keep hands off the mast.

Check radio reception in an area away from electrical interferences. Tune to several weak and strong AM and FM stations. If the radio reception improved, the problem exists with the antenna and/or lead-in cable. If the reception is still poor, refer to Audio System Troubleshooting Hints .

Important: Always zero out the DMM before taking a resistance measurement in order to ensure an accurate reading.

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Measuring Resistance (Mast Antenna System)

Refer to the table when testing the antenna and/or lead-in cable.

1. Measure the resistance from the coax center conductor to antenna mast. Ohmmeter probes at points 2 and 7.
2. Total resistance from end to end of center conductor (Ohmmeter probes at points 2 and 5): RG-58/RG-59 type cable - less than 0.20 ohms RG-62/RG-62M type cable - less than 3.5 ohms
3. When checking the resistance, cautiously wiggle the lead-in tip and cable. Refer to «TESTING FOR INTERMITTENT AND POOR CONNECTIONS»(/chevrolet/chevy-express-h2500/2003-2003/remont/electrical-component-locations/#wiring-systems-general-information__testing-for-intermittent-and-poor-connections) .
4. Replace the antenna and/or lead-in cable when the above readings are not obtained. Refer to «Fixed Antenna Mast Replacement»(/chevrolet/chevy-express-h2500/2003-2003/remont/entertainment-systems/#entertainment-system__fixed-antenna-mast-replacement) for service procedure.

Power Type Antennas

The following chart and diagram show ohmmeter readings which should be obtained.

Important: Always zero out the DMM before taking a resistance measurement in order to ensure an accurate reading.

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Measuring Resistance (Power Antenna System)

Refer to the table when testing the power antenna.

1. Disconnect the negative battery cable.
2. Measure the resistance at the points specified in the table.
3. With the ohmmeter probes fastened to each point, wiggle the separate mast section and antenna housing case.
4. The resistance readings specified in the table should always be obtained. Test and/or replace the following when the resistance readings are out of specification. Replace antenna mast section. Test the ground for an open or high resistance. Refer to «CIRCUIT TESTING»(/chevrolet/chevy-express-h2500/2003-2003/remont/electrical-component-locations/#wiring-systems-general-information__circuit-testing) and «WIRING REPAIRS»(/chevrolet/chevy-express-h2500/2003-2003/remont/electrical-component-locations/#wiring-systems-general-information__wiring-repairs) .
5. After finding and correcting the antenna condition, make sure the antenna lead-in connector is corrosion free and properly fastened.
6. Operate the system in order to verify the repair.

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Speakers Inoperative - One or More

Schematic Reference

1. For Chevy Express G1500, refer to «RADIO»(ref-154376-S15619850142003080900000) .
2. For Chevy Express G2500, refer to «RADIO»(ref-154377-S16889448322003080900000) .
3. For Chevy Express G3500, refer to «RADIO»(ref-154378-S14192489362003080900000) .
4. For Chevy Express H1500, refer to «RADIO»(ref-154379-S24201128842003080900000) .
5. For Chevy Express H2500, refer to «RADIO»(ref-154380-S00164468622003080900000) .
6. For Cutaway G3500, refer to «RADIO»(ref-154383-S11330165092003080900000) .
7. For RV Cutaway G3500, refer to «RADIO»(ref-154387-S22674650522003080900000) .
8. For Savana G1500, refer to «RADIO»(ref-154351-S35094122002003080900000) .
9. For Savana G2500, refer to «RADIO»(ref-154352-S09262806072003080900000) .
10. For Savana G3500, refer to «RADIO»(ref-154353-S31313843112003080900000) .
11. For Savana H1500, refer to «RADIO»(ref-154354-S11817386412003080900000) .
12. For Savana H2500, refer to «RADIO»(ref-154355-S04953695782003080900000) .
13. For Savana Camper Special G3500, refer to «RADIO»(ref-154356-S11308110432003080900000) .
14. For Savana Special G3500, refer to «RADIO»(ref-154357-S37373447702003080900000) .

Preliminary Information

Perform the Diagnostic System Check - Radio/Audio System .

Important: The following information lists the most probable cause of the concern to the least probable cause. If the list leads to the replacement of a component, always inspect for a poor connection before proceeding with replacement. Refer to TESTING FOR INTERMITTENT AND POOR CONNECTIONS and CONNECTOR REPAIRS .

One Speaker Inoperative

1. Speaker output open. Test the appropriate speaker output circuits for an open. Refer to «CIRCUIT TESTING»(/chevrolet/chevy-express-h2500/2003-2003/remont/electrical-component-locations/#wiring-systems-general-information__circuit-testing) and «WIRING REPAIRS»(/chevrolet/chevy-express-h2500/2003-2003/remont/electrical-component-locations/#wiring-systems-general-information__wiring-repairs) .
2. Audio output from the radio is not evident. Test for any AC voltage between the appropriate speaker output circuits at the speaker harness connector, disconnected with the radio volume adjusted to an audible level. If AC voltage is present, replace the speaker. For speaker testing location Refer to «Speaker Replacement Reference»(/chevrolet/chevy-express-h2500/2003-2003/remont/entertainment-systems/#entertainment-system__speaker-replacement-reference) . If AC voltage is not present, replace the radio. Refer to «Radio Replacement»(/chevrolet/chevy-express-h2500/2003-2003/remont/entertainment-systems/#entertainment-system) . Important: The radio must be programmed after replacement. For 4.3L, refer to «REMOTE PROGRAMMING»(/chevrolet/chevy-express-h2500/2003-2003/remont/testing-diagnostics/#engine-controls-self-diagnostics-43l__remote-programming) or «PASS-THRU PROGRAMMING»(/chevrolet/chevy-express-h2500/2003-2003/remont/testing-diagnostics/#engine-controls-self-diagnostics-43l__pass-thru-programming) or «OFF-BOARD PROGRAMMING»(/chevrolet/chevy-express-h2500/2003-2003/remont/testing-diagnostics/#engine-controls-self-diagnostics-43l__off-board-programming) or «OFF-BOARD PASS-THRU PROGRAMMING»(/chevrolet/chevy-express-h2500/2003-2003/remont/testing-diagnostics/#engine-controls-self-diagnostics-43l__off-board-pass-thru-programming) . For 4.8L, 5.3L or 6.0L, refer to «REMOTE PROGRAMMING»(/chevrolet/chevy-express-h2500/2003-2003/remont/testing-diagnostics/#engine-controls-self-diagnostics-48l-53l-60l-gasoline__remote-programming) or «PASS-THRU PROGRAMMING»(/chevrolet/chevy-express-h2500/2003-2003/remont/testing-diagnostics/#engine-controls-self-diagnostics-48l-53l-60l-gasoline__pass-thru-programming) or «OFF-BOARD REMOTE PROGRAMMING»(/chevrolet/chevy-express-h2500/2003-2003/remont/testing-diagnostics/#engine-controls-self-diagnostics-48l-53l-60l-gasoline__off-board-remote-programming) or «OFF-BOARD PASS-THRU PROGRAMMING»(/chevrolet/chevy-express-h2500/2003-2003/remont/testing-diagnostics/#engine-controls-self-diagnostics-48l-53l-60l-gasoline__off-board-pass-thru-programming) .

All Speakers Inoperative

1. Speaker output shorted - Test all speaker outputs for a short. Refer to «CIRCUIT TESTING»(/chevrolet/chevy-express-h2500/2003-2003/remont/electrical-component-locations/#wiring-systems-general-information__circuit-testing) and «WIRING REPAIRS»(/chevrolet/chevy-express-h2500/2003-2003/remont/electrical-component-locations/#wiring-systems-general-information__wiring-repairs) .
2. Antenna Enable Signal/Amplifier Control signal open - Refer to «CIRCUIT TESTING»(/chevrolet/chevy-express-h2500/2003-2003/remont/electrical-component-locations/#wiring-systems-general-information__circuit-testing) and «WIRING REPAIRS»(/chevrolet/chevy-express-h2500/2003-2003/remont/electrical-component-locations/#wiring-systems-general-information__wiring-repairs) .
3. Faulty radio - Replace the radio. Refer to «Radio Replacement»(/chevrolet/chevy-express-h2500/2003-2003/remont/entertainment-systems/#entertainment-system) .

Important: The radio must be programmed after replacement. For 4.3L, refer to REMOTE PROGRAMMING or PASS-THRU PROGRAMMING or OFF-BOARD PROGRAMMING or OFF-BOARD PASS-THRU PROGRAMMING .

For 4.8L, 5.3L or 6.0L, refer to REMOTE PROGRAMMING or PASS-THRU PROGRAMMING or OFF-BOARD REMOTE PROGRAMMING or OFF-BOARD PASS-THRU PROGRAMMING .

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Speaker Replacement Reference

Speaker Replacement Reference

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1. Remove the instrument cluster panel. Refer to «TRIM PLATE BEZEL REPLACEMENT - INSTRUMENT PANEL (I/P) CLUSTER»(/chevrolet/chevy-express-h2500/2003-2003/remont/gauges-instrument-panels/#instrument-panel-gages-and-console__trim-plate-bezel-replacement-instrument) .
2. Remove the screws (2) that secure the radio to the support bracket (1).
3. Remove the radio from the support bracket enough to access the connectors at rear of the radio.
4. Disconnect the electrical/audio and antenna cable connectors from the radio.
5. Remove the radio.
6. If removing the radio mounting bracket. Perform the following steps: Detach the clip retaining the HVAC harness to the radio mounting bracket. Remove the screws (2) retaining the radio mounting bracket (1) to the instrument panel carrier. Remove the radio mounting bracket from the vehicle.

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1. Install the radio mounting bracket. Perform the following steps: Attach the HVAC harness to the radio mounting bracket with the clip. CAUTION: Refer to «FASTENER NOTICE»(/chevrolet/chevy-express-h2500/2003-2003/remont/oem-general-information/#gm-vehicles-cautions-notices__fastener-notice) . Install the screws (2) in order to retain the radio mounting bracket (1) to the instrument panel carrier. Tighten Tighten the screws to 3 N.m (27 lb in).
2. Connect the electrical/audio and antenna cable connectors to the radio.
3. Install the radio to the support bracket (1).
4. Align the radio locator tab into the support bracket locator hole.
5. Install the radio screws (2). Tighten Tighten the screws to 2 N.m (18 lb in).
6. Install the instrument cluster panel. Refer to «TRIM PLATE BEZEL REPLACEMENT - INSTRUMENT PANEL (I/P) CLUSTER»(/chevrolet/chevy-express-h2500/2003-2003/remont/gauges-instrument-panels/#instrument-panel-gages-and-console__trim-plate-bezel-replacement-instrument) .
7. Calibrate the new radio assembly. Refer to «Service Programming System (SPS) Description»(/chevrolet/chevy-express-h2500/2003-2003/remont/entertainment-systems/#entertainment-system__service-programming-system-sps-description) .

Cassette Player Care and Cleaning

Tool Required: J 39916-A CD and Cassette Diagnostic Audio Kit

The recommended cleaning method for the cassette tape player is the use of a scrubbing action, non-abrasive cleaning cassette with pads that scrub the tape head as the hubs of the cleaner cassette turn. The recommended cleaning cassette is available in the J 39916-A .

Cut Tape Detection Feature

When using a scrubbing action, non-abrasive cleaning cassette tape, it is normal for the cassette to eject. The unit is equipped with a cut tape detection feature. A cleaning cassette may appear as a broken tape.

With Automatic Tone Control

Perform the following procedure in order to prevent the cleaning cassette from being ejected

1. Turn the ignition to the RUN or to the ACCESSORY position.
2. Turn the radio to the OFF position.
3. Press and hold the TAPE AUX button for 5 seconds. The tape symbol on the display will flash for 2 seconds.
4. Insert the scrubbing action cleaning cassette.
5. Eject the cleaning cassette after the manufacturer's recommended cleaning time.

Without Automatic Tone Control

Perform the following procedure in order to prevent the cleaning cassette from being ejected

1. Turn the ignition to the RUN or to the ACCESSORY position.
2. Turn the radio to the ON position.
3. Insert the scrubbing action cleaning cassette.
4. Within 5 seconds, press and hold the REV and FWD buttons at the same time for 3 seconds. The tape symbol on the display will flash, showing that the cut tape detection feature is no longer active.
5. Eject the cleaning cassette after the manufacturer's recommended cleaning time.

When the cleaning cassette ejects, the cut tape detection feature is active again.

You may also choose a non-scrubbing action, wet-type cleaner which uses a cassette with a fabric belt in order to clean the tape head. This type of cleaning cassette will not eject on its own. A non-scrubbing action cleaner may not clean as thoroughly as the scrubbing type cleaner. The use of a non-scrubbing action, dry-type cleaning cassette is not recommended.

After you clean the player, press and hold EJECT for 5 seconds in order to reset the CLN (clean) indicator. The radio will display a series of dashes, showing that the indicator had reset.

Cassettes are subject to wear: The sound quality may degrade over time. Always ensure that the cassette tape is in good condition before you have the tape player serviced.

Fixed Antenna Mast Replacement

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1. Unscrew the antenna mast.
2. Remove the antenna mast from the antenna base.

Installation Procedure

Important: Use tape on the tool surface in order to protect the paint on the antenna mast from damage.

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1. Install the antenna mast to the antenna base. CAUTION: Refer to «FASTENER NOTICE»(/chevrolet/chevy-express-h2500/2003-2003/remont/oem-general-information/#gm-vehicles-cautions-notices__fastener-notice) .
2. Screw the antenna mast to the antenna base. Tighten Tighten the antenna mast to 5 N.m (44 lb in).

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Scheme 40

1. Remove the radio and mounting bracket. Refer to «Radio Replacement»(/chevrolet/chevy-express-h2500/2003-2003/remont/entertainment-systems/#entertainment-system) .
2. Remove the engine cover. Refer to «ENGINE COVER REPLACEMENT»(/chevrolet/chevy-express-h2500/2003-2003/remont/exteriorinterior-trim/#interior-trim) .
3. Disconnect the antenna cable connector at the lower right of the instrument panel.
4. Remove the antenna cable (1) from the retaining clips on the instrument panel carrier.
5. Remove the antenna cable (1) from the vehicle.

Scheme 41

Scheme 42

1. Install the antenna cable (1) to the vehicle.
2. Install the cable (1) to the retaining clips on the instrument panel carrier.
3. Connect the antenna cable connector at the lower right of the instrument panel.
4. Install the engine cover. Refer to «ENGINE COVER REPLACEMENT»(/chevrolet/chevy-express-h2500/2003-2003/remont/exteriorinterior-trim/#interior-trim) .
5. Install the radio mounting bracket and radio. Refer to «Radio Replacement»(/chevrolet/chevy-express-h2500/2003-2003/remont/entertainment-systems/#entertainment-system) .

Scheme 43

1. Unscrew and remove the antenna mast (1). Refer to «Fixed Antenna Mast Replacement»(/chevrolet/chevy-express-h2500/2003-2003/remont/entertainment-systems/#entertainment-system__fixed-antenna-mast-replacement) .
2. Disconnect the antenna base cable connection from the antenna extension cable.
3. Push the antenna base cable grommet (5) out, through the firewall.
4. Open hood to access the antenna cable/base (3).
5. Remove the antenna collar (2).
6. Remove the antenna cable/base bolts (4).
7. Remove the antenna cable/base (3) from the vehicle.

Scheme 44

1. Install the fixed antenna cable/base (3). CAUTION: Refer to «FASTENER NOTICE»(/chevrolet/chevy-express-h2500/2003-2003/remont/oem-general-information/#gm-vehicles-cautions-notices__fastener-notice) .
2. Install the antenna cable/base mounting bolts (4). Tighten Tighten the antenna cable/base mounting bolts (4) to 11 N.m (97 lb in).
3. Route the antenna base cable under the A/C case and through the hole in the firewall.
4. Install the antenna cable grommet (5) through firewall and seat the grommet (5).
5. Install the antenna collar (2).
6. Connect the antenna base cable to the antenna extension cable.
7. Install the passenger side hinge pillar trim. Refer to «TRIM REPLACEMENT - HINGE PILLAR»(/chevrolet/chevy-express-h2500/2003-2003/remont/exteriorinterior-trim/#interior-trim) .
8. Install the antenna mast (1). Refer to «Fixed Antenna Mast Replacement»(/chevrolet/chevy-express-h2500/2003-2003/remont/entertainment-systems/#entertainment-system__fixed-antenna-mast-replacement) .

Scheme 45

1. Remove the front door trim panel. Refer to «TRIM PANEL REPLACEMENT - SIDE FRONT DOOR»(/chevrolet/chevy-express-h2500/2003-2003/remont/door-locks-anti-theft-systems/#door-system-mirror-system-window-system__trim-panel-replacement-side-front) . WARNING: Eye protection must be worn when drilling rivets to reduce the chance of personal injury.
2. Remove the rivets retaining the speaker/housing to the door using appropriate drill and drill bit.
3. Remove the speaker/housing from the door.
4. Disconnect the electrical connector from the speaker housing.

Scheme 46

1. Connect the electrical connector to the speaker housing.
2. Install the speaker/housing to the door.
3. Install the rivets retaining the speaker housing to the door.
4. Install the front door trim panel. Refer to «TRIM PANEL REPLACEMENT - SIDE FRONT DOOR»(/chevrolet/chevy-express-h2500/2003-2003/remont/door-locks-anti-theft-systems/#door-system-mirror-system-window-system__trim-panel-replacement-side-front) .

Scheme 47

1. Remove the rear door trim panel. Refer to «TRIM PANEL REPLACEMENT - REAR DOOR - LEFT»(/chevrolet/chevy-express-h2500/2003-2003/remont/exterior-body-panels/#body-rear-end) or «TRIM PANEL REPLACEMENT - REAR DOOR - RIGHT»(/chevrolet/chevy-express-h2500/2003-2003/remont/exterior-body-panels/#body-rear-end) . WARNING: Eye protection must be worn when drilling rivets to reduce the chance of personal injury.
2. Remove the rivets retaining the rear door speaker/housing to the door using appropriate drill and drill bit.
3. Remove the speaker/housing from the door.
4. Disconnect the electrical connector from the speaker.

Scheme 48

1. Connect the electrical connector to the speaker.
2. Install the speaker/housing to the door.
3. Install the rivets in order to retain the rear door speaker/housing to the door.
4. Install the rear door trim panel. Refer to «TRIM PANEL REPLACEMENT - REAR DOOR - LEFT»(/chevrolet/chevy-express-h2500/2003-2003/remont/exterior-body-panels/#body-rear-end) or «TRIM PANEL REPLACEMENT - REAR DOOR - RIGHT»(/chevrolet/chevy-express-h2500/2003-2003/remont/exterior-body-panels/#body-rear-end) .

Scheme 49

Scheme 50

1. Remove the rear header trim panel, if equipped.
2. Remove the nuts retaining the rear header speaker housing to the vehicle.
3. Remove the rear header speaker housing from the vehicle.
4. Disconnect the electrical connector from the speaker.
5. Remove the screws retaining the rear header speaker to the rear header speaker housing.
6. Remove the rear header speaker from the rear header speaker housing.

Scheme 51

Scheme 52

1. Install the rear header speaker to the rear header speaker housing. CAUTION: Refer to «FASTENER NOTICE»(/chevrolet/chevy-express-h2500/2003-2003/remont/oem-general-information/#gm-vehicles-cautions-notices__fastener-notice) .
2. Install the screws in order to retain the rear header speaker to the rear header speaker housing. Tighten Tighten the screws in order to retain the rear header speaker to the speaker housing to 2 N.m (18 lb ft).
3. Connect the electrical connector to the speaker.
4. Install the rear header speaker housing to the vehicle.
5. Install the nuts in order to retain the rear header speaker housing to the vehicle. Tighten Tighten the nuts in order to retain the rear header speaker housing to the vehicle to 6 N.m (53 lb in).
6. Install the rear header trim panel, if equipped.

Radio/Audio System Description and Operation

The Entertainment System on this vehicle is configured with either a base or an uplevel system. Both the base and uplevel systems contain a radio, antenna, and speakers.

The uplevel system differs from the base level system by providing the customer with enhanced audio system features. Some of those features may include the radio data system (RDS), extended range speakers, and a remote playback device.

The following list shows the base and uplevel radios available for this vehicle

Scheme 53

Scheme 54

Scheme 55

1. Base Radio (UM7 RPO Code) - AM/FM
2. Base Radio (U1C RPO Code) - AM/FM with CD
3. Uplevel Radio (UB1 RPO Code) - AM/FM, Cassette and CD
4. Uplevel Radio (UC6 RPO Code) - AM/FM, Integral Multi Disc CD Changer

Each item in the list below represents topics covered in detail below

1. AM/FM Reception
2. Antenna
3. Audio Amplifier
4. Theft Deterrent
5. Integral Multi Disc CD Changer (IMDX)
6. Remote Playback Device
7. Radio Data System (RDS)
8. Radio Error Messages

Radio Signal

The radio signal is sent from a broadcast station and is then received by an antenna. The strength of the signal received depends on the following

1. The power output (wattage) of the broadcasting station
2. The location of the vehicle (or receiver) relative to the broadcast tower.
3. Obstacles between the tower and the receiver
4. Atmospheric conditions
5. What band (AM or FM) the station is broadcasting
6. Type of antenna and the ground plane

AM Reception

The AM band has a lower frequency range than the FM band. These longer wavelengths

1. Bend around obstacles
2. Follow the curvature of the earth
3. May reflect off the ionosphere (skip)

The AM frequencies have longer range due to the ground wave. The ground wave follows the curvature of the earth and is effected by its conductivity. Greater conductivity equates to less signal loss thus transmission over water is better than over land. The AM band has a range of 80-320 km (50-200 mi).

FM Reception

The shorter wavelengths of the higher frequency FM band

1. Reflect off obstacles
2. Are absorbed by the ground
3. Penetrate the ionosphere

Broadcasts in the FM band are limited to "line of sight" reception which is typically 40 km (25 mi). Even when out of a direct line of sight, the signal may be reflected into areas that would be in a "shadow" otherwise. Factors which affect the line of sight include

1. Height of the broadcast antenna
2. Height of the receiving antenna
3. Terrain and buildings in the broadcast path

Antenna

The antenna system is comprised of a fixed mast or a power antenna.

Theft Deterrent

The theft deterrent system is a feature on all base and uplevel radios. There is no need to program a security code into the radio as in past model years. The theft deterrent system now utilizes class 2 serial data to determine if the radio is in the appropriate vehicle. Each time the radio receives the "run" power mode message, it compares the VIN information it has stored to the VIN information received from a module on the class 2 serial data circuit responsible for transmitting that information. If a mis-match occurs, the radio display will indicate to the user the radio is locked. Once this takes place, a DTC will set, the radio will not respond to any button presses and become inoperative. The 2 scenarios able to cause this condition are

1. A radio is installed from another vehicle.
2. A module which communicates on the class 2 serial data circuit which supplies VIN information to the radio is replaced and not properly setup with the correct VIN information for that vehicle.

The only way to unlock the radio is by using a scan tool. Always refer to the table in this section to diagnose the "Theftlock" DTC for further information.

Integral Multi Disc CD Changer (IMDX-Uplevel)

The Integral Multi Disc CD Changer has the capability of storing and playing up to 6 compact discs. The Integral Multi Disc CD Changer has a shock-absorbing system. Only under extreme operating temperatures or severe shock or vibration should the compact disc player skip or mute. If the customer travels an abnormally rough road, a skip condition may be normal. Test drive the vehicle on a normal road with a known good CD. If the condition is still present, replace the radio.

The use of CD lens cleaner discs is not advised, due to the risk of contaminating the lens of the CD optics with lubricants internal to the CD mechanism. To operate the Integral Multi Disc CD Changer in the single play mode, depress the "LOAD" button for less than 2 seconds, an audible "beep" can then be heard. When the disc door opens the LED to the right of the disc door will first turn red then green to indicate the CD can be loaded. The radio will also display the message "INSERT CD 1" and the changer will pull the disc into the play position.

To operate the changer in the multi disc mode, depress the "MODE" button for more than 2 seconds and the LED to the right of the disc door will first turn red then green to indicate CDs can be loaded. The radio will also display the message "MULTI LOAD" to indicate the multi load mode has been initiated and the changer will begin accepting a disc for however many empty slots there may be. If eight seconds elapse before the next disc is loaded, the multi load mode is cancelled and can be reinitiated if desired by depressing the load button again for more than 2 seconds. If the changer is full, (6 discs are loaded) the single play and multi load modes cannot be executed. When this occurs, 3 audible beeps are heard and the message "CHANGER FULL" is displayed.

Radio Data System (RDS)

All uplevel audio systems are equipped with technology known as the Radio Data System (RDS). RDS is a system that sends data along with the audio of the FM station you are currently tuned to. RDS is a standard that defines how a FM broadcast station may send digital data along with the audio program. Think of it as a one way wireless modem, allowing the broadcaster to send information about his program to your receiver.

RDS data is carried in what is known as a "sub-carrier". A sub-carrier is a frequency that the FM broadcaster is authorized to use to send data or other audio programs that are not audible in the main audio program. RDS information can be used to display program information and to control the radio.

To receive the RDS signal, all that is needed is an FM receiver with a RDS circuit. A special integrated circuit capable of dealing with the RDS signal is in the RDS circuit and passes it along to the receiver's microprocessor where it is decoded and acted upon.

RDS Basic Information

1. RDS functions are provided in the FM broadcast band only.
2. RDS functions will only work with FM broadcast stations that are broadcasting RDS data.
3. Not all FM Broadcast stations broadcast RDS data or offer all of the RDS services.
4. RDS functions may not work properly when reception is weak, reception is of poor quality, or RDS is not implemented properly by the FM Broadcaster.

In some cases, a radio station broadcasting incorrect information may cause the RDS features of the radio to appear to work improperly.

Broadcast RDS information can be used in a variety of ways by the receiver and listener, but basically falls into 2 categories: Display and Control.

Displaying Program Information

RDS displays textual information such as

1. The name of the station
2. The type of program
3. General information such as artist and song title, call in phone numbers, etc.

RDS is always on. When tuned to a non-RDS station, your radio will display frequency information as you would normally expect. When tuned to a RDS station, your radio will change from displaying the frequency of the FM station to displaying the call letters of the station or display the nickname of the station. This feature is known as the Program Service Name.

Controlling the Radio

RDS can control the radio when data the receiver can use responds to timely information performing the following

1. Interrupt the playback of your cassette or CD for traffic or emergency bulletins.
2. Search for stations by type of program.
3. Automatically follow network programming from transmitter to transmitter as you travel from one listening area to another.
4. Set your clock to the time that the RDS Broadcast station broadcasts.

Viewing and Selecting RDS Information for Display

Press the "TUNE/DISP" knob once for less then 2 seconds when the radio displays the program service name and the frequency of the station will be displayed. Press the knob again, and the program type (P-Type) will be displayed. Pressed again, and the program type name will be displayed (if the broadcaster is broadcasting one). The program type name is an eight-character name that the broadcaster may use to further identify the type of programming currently being broadcast.

Should you decide that Frequency, P-Type or program type name is more desirable to display when tuned to an RDS station than the Program Service Name, press the "TUNE/DISP" knob until the desired information is displayed, then press and hold for more than 2 seconds. A beep should be heard and the radio will now display the selected information whenever tuned to an RDS broadcaster. The radio will display frequency for all non-RDS broadcast stations.

Using the RDS Traffic Feature

Some RDS broadcasters may carry traffic information programming to inform you of current traffic conditions in your listening area and is indicated by the icon in the radio display. RDS enables the broadcaster to get this information to you even when you are listening to a tape or compact disc. This feature can be enabled or disabled by the listener. Press the "TRAF" button to find a station that claims to carry traffic information.

You may do this even when playing a cassette tape or compact disc. This action will operate in the background without interrupting the current playback. If the radio is not currently tuned to an RDS traffic station, the radio will: immediately SEEK an RDS traffic station. If the radio finds an RDS traffic station, the "TRAF" icon will appear in the radio display as will brackets around the (TRAF) icon. If the radio cannot find an RDS traffic station after searching through the entire FM band, the radio will display "NO TRAFFIC".

Alternate Frequency (AF) Switching

RDS permits broadcaster's to send information to the radio that allows the radio to automatically switch frequency to the best quality station in that broadcaster's network.

Since the radio is displaying the broadcaster call letters or nickname, the listener will not see the frequency during an AF switch unless you have changed the default display to be frequency instead of Program Service name.

To enable or disable AF switching perform the following

1. Press and hold the AM/FM button for 2 seconds or more.
2. The radio will display AF ON or AF OFF depending on the current condition of AF and a confirmation beep will be heard.

When AF is enabled and you recall a RDS station stored on preset, the radio determines if the station stored is of acceptable quality. If not, the radio checks all available AF's for your station. If the radio fails to locate your program, AF SEARCH will be displayed as the radio scans across the band looking for your program or an affiliated network. If the radio cannot find the original station or an acceptable alternate frequency NOT FOUND will be displayed and the radio returns to the original frequency for the preset.

RDS Clock Time

Broadcasters can choose to send clock time information in the RDS data. This information can be used to update the clock time on the radio. RDS clock time is broadcast once a minute. To set the clock using RDS clock data perform the following

1. Press and hold the HR and MIN buttons together for 2 or more seconds to update the time.
2. The display will show UPDATED after receiving the broadcast time data.
3. If the broadcaster is not broadcasting the time data, the radio will display NO UPDATE and the time remains unchanged.

Radio Error Messages

The radio displays the following errors

CDX ERR: Displays if communication is lost with the remote CD changer, if equipped.

CHECK CD: Displays when the player encounters a focus or tracking error.

CHK CDXX: Displays when the CD changer encounters a focus or tracking error, if equipped.

CHK TAPE: Displays if a tape has been inserted but is unable to be played due to an error.

DOOR OPEN: Displays when the CD changer door has been left open, if equipped.

NO DISC: Displays when the radio expected a disc to be inserted.

NONE: Displays when the radio is unable to detect the vehicle speed data information via the class 2 serial data circuit.

CAL ERR: Displays when an invalid calibration procedure is detected.

Service Programming System (SPS) Description

The service programming system (SPS) allows a technician to program a control module through the data link connector (DLC). The information transfer circuit that is used at the DLC is the same serial data circuit used by the scan tool for retrieving diagnostic trouble codes (DTCs), displaying data, clearing DTCs, etc. This procedure offers the ability to install software/calibrations matched to a particular vehicle.

Most control modules have 2 types of memory.

The software/calibrations reside in the flash memory.

The 2 types of memory are listed below

1. Electrically Erasable Programmable Read Only Memory (EEPROM) This type of memory allows selected portions of memory to be programmed while other portions remain unchanged. Certain learned values reside in the EEPROM, such as: The vehicle identification number (VIN) The crankshaft variation learned position The software/calibrations identification numbers The control module security information
2. Flash Read Only Memory - Flash Memory Flash memory has increased memory storage capacity. During programming all information within this type of memory is erased, and then replaced with entirely new information.

Service Programming Methods

The 4 methods of programming a control module and the proper tools for each method are as follows

1. Remote Programming: The Tech 2 or other scan tool, Techline Terminal or a personal computer equipped with General Motors Corporation authorized Programming software - The Tech 2 or other scan tool is used as an interface between the vehicle and the Techline Terminal or a personal computer. The control module is installed in the vehicle
2. Pass Thru Programming: The Tech 2 or other scan tool, Techline Terminal or a personal computer equipped with General Motors Corporation authorized programming software - The Tech 2 or other scan tool is used as an interface between the vehicle and the Techline Terminal or a personal computer. The control module is installed in the vehicle.
3. Off-Board Remote Programming, vehicle NOT available: The Tech 2 or other scan tool, off-board programming adapter (OBPA), Techline Terminal or a personal computer equipped with General Motors Corporation authorized programming software - The Tech 2 or other scan tool is used as an interface between the vehicle and the Techline Terminal or a personal computer. The control module is NOT installed in a vehicle
4. Off-Board Pass Thru Programming

1. The Tech 2 or other scan tool, off-board programming adapter (OBPA), Techline Terminal or a personal computer equipped with General Motors Corporation authorized programming software - The Tech 2 or other scan tool is used as an interface between the vehicle and the Techline Terminal or a personal computer.
2. The control module is NOT installed in a vehicle

All 4 methods may not be available for every vehicle.

For information on programming a control module using one of the methods listed above. For 4.3L, refer to REMOTE PROGRAMMING or PASS-THRU PROGRAMMING or OFF-BOARD PROGRAMMING or OFF-BOARD PASS-THRU PROGRAMMING .

For 4.8L, 5.3L or 6.0L, refer to REMOTE PROGRAMMING or PASS-THRU PROGRAMMING or OFF-BOARD REMOTE PROGRAMMING or OFF-BOARD PASS-THRU PROGRAMMING .

Before Programming a Control Module

Important: DO NOT program an existing control module with the identical software/calibration package. This procedure is not a short cut to correct a driveability condition. This is an ineffective repair. A control module should only be programmed when the following occurs

1. When a service procedure instructs you to replace the control module. The service part control module does not contain operating software or calibrations.
2. General Motors Corporation releases an updated software/calibration package.

Ensure that the following conditions are met before programming a control module

1. Vehicle system voltage: There are no charging system concerns. All charging system concerns must be repaired before programming a control module. The battery voltage is greater than 12 volts but less than 16 volts. The battery must be fully charged before programming the control module. A battery charger is NOT connected to the vehicles battery. Incorrect system voltage or voltage fluctuations from a battery charger may cause programming failure or control module damage. Turn OFF or disable any system that may put a load on the vehicles battery. Turn OFF or disable systems such as: Daytime running lights (DRL). Applying the parking brake, on most vehicles, disables the DRL system. Heating, ventilation, and air conditioning (HVAC) systems Engine cooling fans, etc.
2. The ignition switch is in the proper position. The scan tool prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position of the ignition switch during the programming procedure unless instructed to do so.
3. All tool connections are secure: The RS-232 cable The connection at the DLC The voltage supply circuits The OBPA
4. DO NOT disturb the tool harnesses while programming. If an interruption occurs during the programming procedure, programming failure or control module damage may occur.
5. If you are performing the pass-through programming procedure using a notebook computer without the power cord, ensure that the internal battery is fully charged.

After Programming a Control Module

The powertrain may operate slightly different after a control module software/calibration update. Operating the powertrain through various driving conditions allows the control module to re-learn certain values. The control module must re-learn the following after a software/calibration update

1. Fuel trim correction
2. Idle air control (IAC) learned position
3. Automatic transmission shift adapts

Other learned values only re-learn by performing a service procedure.

If a control module is replaced the following service procedures may need to be performed

1. The crankshaft variation learn procedure
2. The engine oil life reset procedure
3. The idle learn procedure
4. The inspection/maintenance complete system set procedure
5. The vehicle theft deterrent password learn procedure
6. The throttle position (TP) sensor learn procedure

Scheme 56

See also:
• CHECKING AFTERMARKET ACCESSORIES
• TESTING FOR INTERMITTENT AND POOR CONNECTIONS
• DIAGNOSTIC STARTING POINT - ENGINE ELECTRICAL
• CIRCUIT TESTING
• WIRING REPAIRS
• CONNECTOR REPAIRS
• REMOTE PROGRAMMING
• PASS-THRU PROGRAMMING
• OFF-BOARD PROGRAMMING
• OFF-BOARD PASS-THRU PROGRAMMING
• REMOTE PROGRAMMING
• PASS-THRU PROGRAMMING
• OFF-BOARD REMOTE PROGRAMMING
• OFF-BOARD PASS-THRU PROGRAMMING
• TRIM PLATE BEZEL REPLACEMENT - INSTRUMENT PANEL (I/P) CLUSTER
• FASTENER NOTICE
• ENGINE COVER REPLACEMENT
• TRIM PANEL REPLACEMENT - SIDE FRONT DOOR
• TRIM PANEL REPLACEMENT - REAR DOOR - LEFT
• Diagnostic System Check - Radio/Audio System
• Radio/Audio System Description and Operation
• Speakers Inoperative - One or More
• Audio System Troubleshooting Hints
• Fixed Antenna Mast Replacement
• Speaker Replacement Reference
• Service Programming System (SPS) Description