Special Tools
Illustration Tool Number/Description EL 50334-50 USB Cable and Adapter Kit EL-48028 Digital Radio Test Antenna EL-49903 OnStar Antenna Diagnostic Tool Kit
Scheme 1
Scheme 2
EL-48028 Digital Radio Test Antenna
EL-49903 GM OnStar Antenna Diagnostic Tool Kit
EL-49903 GM OnStar Antenna Diagnostic Tool Kit
EL-48028 Digital Radio Test Antenna
EL-49903 GM OnStar Antenna Diagnostic Tool Kit
EL-50334-50 USB Cable and Adapter Kit
EL-49903 GM OnStar Antenna Diagnostic Tool Kit
** EL-50334-50 ** USB cable and adapter
Location (pos)
- 01 - Front
- 02 - Rear
- 03 - Left
- 04 - Right Hand
- 05 - All
- 06 - Upper
- 07 - Center
- 08 - Lower
- 09 - Service Information
Scheme 3
Scheme 3: Mobile Telephone Microphone Replacement
| Callout | Component Name |
| Preliminary Procedures Remove the roof console. Refer to ROOF CONSOLE REPLACEMENT |
| 1 | Roof Console Opening Cover Procedure Disconnect the electrical connectors. |
| 2 | Mobile Telephone Microphone |
Scheme 4
Scheme 4: Communication Interface Module Replacement
| Callout | Component Name |
| Preliminary Procedures Remove the communication interface module bracket. Refer to COMMUNICATION INTERFACE MODULE BRACKET REPLACEMENT . |
| 1 | Communication Interface Module Procedure Disconnect the electrical connectors. If replacing the communication interface module be sure to transfer Bluetooth antenna, if equipped. For programming and set up procedures, refer to CONTROL MODULE REFERENCES . |
Scheme 5
Scheme 5: Wireless Communication Interface Antenna Replacement
| Callout | Component Name |
| Preliminary Procedures Remove the communication interface module bracket. Refer to COMMUNICATION INTERFACE MODULE BRACKET REPLACEMENT |
| 1 | Wireless Communication Interface Antenna Bluetooth Module Procedure Unsnap the antenna from communication module. |
Scheme 6
Scheme 6: Communication Interface Module Bracket Replacement
| Callout | Component Name |
| Preliminary Procedures Remove the instrument panel compartment. Refer to INSTRUMENT PANEL COMPARTMENT REPLACEMENT |
| 1 | Communication Interface Module Bracket Nut (Qty: 2) Refer to CAUTION: RETAINER . Tighten 9 N m (80 lb in) |
| 2 | Communication Interface Module Bracket Bolt Refer to CAUTION: RETAINER . |
| 3 | Communication Interface Module Bracket Procedure Disconnect the electrical connector. Transfer components as necessary. |
Scheme 7
Scheme 7: Radio Replacement
| Callout | Component Name |
| Preliminary Procedures Remove the radio control assembly. Refer to RADIO CONTROL ASSEMBLY REPLACEMENT . |
| 1 | Radio Screw (Qty: 4) Refer to CAUTION: RETAINER . |
| 2 | Radio Assembly Procedure Disconnect the electrical connectors. Refer to CONTROL MODULE REFERENCES for programming and setup information. |
Scheme 8
Scheme 8: Traffic Information Receiver Replacement
| Callout | Component Name |
| Preliminary Procedures Remove the rear floor panel carpet. Refer to REAR FLOOR PANEL CARPET REPLACEMENT . |
| 1 | Traffic Information Receiver Procedure Disconnect the electrical connectors. Unsnap the traffic information receiver from the bracket. |
Scheme 9
Scheme 9: Radio Control Assembly Replacement
| Callout | Component Name |
| Preliminary Procedures Remove INSTRUMENT PANEL CENTER AIR OUTLET Remove DRIVER KNEE BOLSTER PANEL Remove INSTRUMENT PANEL LOWER CENTER TRIM PANEL |
| 1 | Radio Control Screws (Qty: 4) Refer to CAUTION: RETAINER |
| 2 | Radio Control Assembly Procedure Disconnect the electrical connectors. When replacing the radio control assembly, transfer all necessary components. Refer to CONTROL MODULE REFERENCES for programming and setup information. |
Scheme 10
Scheme 10: Radio Speaker Amplifier Replacement
| Callout | Component Name |
| Preliminary Procedures Remove the front floor console extension - left. Refer to FRONT FLOOR CONSOLE EXTENSION REPLACEMENT . |
| 1 | Radio Speaker Amplifier Nut (Qty: 3) Refer to CAUTION: RETAINER . Tighten 6 Nm (53 lb in) |
| 2 | Radio Speaker Amplifier Procedure Disconnect the electrical connectors. |
Scheme 11
Scheme 11: Multimedia Player Interface Module Replacement
| Callout | Component Name |
| Preliminary Procedures Remove the front floor console extension. Refer to FRONT FLOOR CONSOLE EXTENSION REPLACEMENT |
| 1 | Multimedia Player Interface Module Procedure Slide the module upwards after disengaging retaining clips. Disconnect the electrical connectors. |
Scheme 12
Scheme 12: Navigation Signal Splitter Replacement
| Callout | Component Name |
| Preliminary Procedures Remove the communication interface module bracket. Refer to COMMUNICATION INTERFACE MODULE BRACKET REPLACEMENT . |
| 1 | Navigation Signal Splitter Procedure Disconnect the electrical connectors. For programming and set up procedures, refer to CONTROL MODULE REFERENCES . |
Scheme 13
Scheme 13: Radio Antenna Base Replacement
| Callout | Component Name |
| Preliminary Procedures Lower the rear of the headlining trim panel. Refer to HEADLINING TRIM PANEL REPLACEMENT (WITH C3U) or HEADLINING TRIM PANEL REPLACEMENT (WITHOUT C3U) . |
| 1 | Radio Antenna Base Fastener |
| 2 | Radio Antenna Base Retainer Procedure Use a new retainer. |
| 3 | Radio Antenna Base Assembly Procedure Disconnect the electrical connector. |
Scheme 14
Scheme 14: Radio Antenna Replacement
| Callout | Component Name |
| 1 | Radio Antenna Procedure Rotate the mast counterclockwise in order to release the mast from the antenna base. |
Scheme 15
Scheme 15: Radio and Telephone Control Switch Replacement
| Callout | Component Name |
| Refer to SIR WARNING . Preliminary Procedures Remove the inflatable restraint steering wheel module. Refer to STEERING WHEEL INFLATABLE RESTRAINT MODULE REPLACEMENT . |
| 1 | Radio and Telephone Control Switch Procedure Disconnect the electrical connectors. Make sure the steering wheel control switches are properly seated to the steering wheel trim cover during installation. |
Scheme 16
Scheme 16: Audio and Video Module Cable Replacement
| Callout | Component Name |
| Preliminary Procedures Remove the front floor console. Refer to FRONT FLOOR CONSOLE REPLACEMENT . |
| 1 | Audio and Video Module Cable Procedure Disconnect the electrical connectors at each end of the cable. Cable connects to the multi media interface module. Note the cable routing prior to removal and follow the same routing. |
Scheme 17
Scheme 17: Digital Radio, Mobile Telephone, and Vehicle Location Antenna Cable Replacement (dashboard)
| Callout | Component Name |
| Preliminary Procedures Remove the right windshield garnish molding. Refer to WINDSHIELD GARNISH MOLDING REPLACEMENT Remove the radio. Refer to RADIO REPLACEMENT . Remove the instrument panel compartment. Refer to INSTRUMENT PANEL COMPARTMENT REPLACEMENT . |
| 1 | Digital Radio and Mobile Telephone and Vehicle Location Antenna Cable Procedure Disconnect the electrical connectors at each end of the antenna. If the antenna cable is taped into the wiring harness then cut the ends off the old antenna and route the new antenna as close to the old one as possible using tie straps to secure the new cable. |
Scheme 18
Scheme 18: Digital Radio, Mobile Telephone, and Vehicle Location Antenna Cable Replacement (headlining)
| Terminal | Component Name |
| Preliminary Procedures Remove headlining panel. Refer to HEADLINING TRIM PANEL REPLACEMENT (WITH C3U) HEADLINING TRIM PANEL REPLACEMENT (WITHOUT C3U) |
| 1 | Digital Radio and Mobile Telephone and Vehicle Location Antenna Cable Procedure Disconnect the electrical connectors at each end of the antenna. Use a hot air gun to facilitate removing coaxial cable from headlining. Do not overheat the surfaces In those areas where the cable is located under a foam block cut the cable on each side of the foam block. Do not remove the foam block. NOTE: When the coaxial cable is to be moved, carry out the following steps Use a hot air gun to facilitate removing coaxial cable from headlining. Do not overheat the surfaces If the headlining electrical device is to be discarded, remove the foam block when removing the cable. Remove adhesive residue from the cable. NOTE: Use hot melt adhesive (HMA) when installing the cable and place insulating tape over the bonding points. |
| NOTE |
| When the coaxial cable is to be moved, carry out the following steps |
| NOTE |
| Use hot melt adhesive (HMA) when installing the cable and place insulating tape over the bonding points. |
Scheme 19
Scheme 19: Radio and Navigation Antenna Cable Replacement
| Callout | Component Name |
| Preliminary Procedures Lower the headlining trim panel where needed. Refer to HEADLINING TRIM PANEL REPLACEMENT (WITH C3U) or HEADLINING TRIM PANEL REPLACEMENT (WITHOUT C3U) . |
| 1 | Radio Antenna Cable Extension Cable Procedure Disconnect the electrical connectors at each end of the antenna. If the antenna cable is taped into the wiring harness then cut the ends off the old antenna and route the new antenna as close to the old one as possible using tie straps to secure the new cable. |
Scheme 20
Scheme 20: Video Display Replacement
| Callout | Component Name |
| 1 | Video Display Trim Covers (Qty: 2) |
| 2 | Video Display Fastener (Qty: 4) Refer to CAUTION: RETAINER Tighten 9.5 Nm (84 lb in) |
| 3 | Video Display Assembly Procedure Disconnect the electrical connectors. |
Scheme 21
Scheme 21: Heater and Air Conditioning and Radio Control Module Replacement
| Callout | Component Name |
| Preliminary Procedures Remove the front floor console rear trim panel - upper. Refer to FRONT FLOOR CONSOLE REAR TRIM PANEL REPLACEMENT - UPPER . |
| 1 | Heater and Air Conditioning and Radio Control Module Screw (Qty: 4) Refer to CAUTION: RETAINER . |
| 2 | Heater and Air Conditioning and Radio Control Module |
Scheme 22
Scheme 22: Audio/Video Disc Player Adapter Replacement
| Callout | Component Name |
| Preliminary Procedures Remove the front floor console rear trim panel - upper. Refer to FRONT FLOOR CONSOLE REAR TRIM PANEL REPLACEMENT - UPPER . |
| 1 | Audio Video Disc Player Adapter Screw (Qty: 2) Refer to CAUTION: RETAINER |
| 2 | Audio Video Disc Player Adapter |
Scheme 23
Scheme 23: Radio Front Center Speaker Replacement
| Callout | Component Name |
| Preliminary Procedures Remove the radio front speaker grille. Refer to RADIO FRONT SPEAKER GRILLE REPLACEMENT . |
| 1 | Radio Front Center Speaker Screw (Qty: 2) Refer to CAUTION: RETAINER |
| 2 | Radio Front Center Speaker Assembly Procedure Disconnect the electrical connector. |
Scheme 24
Scheme 24: Radio Front Speaker Grille Replacement
| Callout | Component Name |
| 1 | Radio Front Speaker Grille Retainer (Qty: 4) |
| 2 | Radio Front Speaker Grille Assembly Procedure Use a plastic flat bladed tool to remove the grille assembly. When replacing the speaker grille, transfer all necessary parts. |
Scheme 25
Scheme 25: Radio Rear Speaker Housing Replacement
| Callout | Component Name |
| Preliminary Procedures Remove the radio rear speaker grille. Refer to RADIO REAR SPEAKER GRILLE REPLACEMENT . Remove the rear liftgate speaker. Refer to REAR LIFTGATE SPEAKER REPLACEMENT . |
| 1 | Radio Rear Speaker Housing Procedure Using a flat bladed tool, release the speaker housing from the liftgate trim panel. The housing is attached with integral clips. |
Scheme 26
Scheme 26: Radio Rear Speaker Grille Replacement
| Callout | Component Name |
| 1 | Radio Rear Speaker Grille Procedure Using a flat bladed tool, release the speaker grille from the liftgate trim panel. The grille is attached with four integral clips. |
Scheme 27
Scheme 27: Radio Windshield Side Garnish Molding Speaker Replacement
| Callout | Component Name |
| Preliminary Procedures Remove the windshield garnish molding. Refer to WINDSHIELD GARNISH MOLDING REPLACEMENT . |
| 1 | Radio Windshield Side Garnish Molding Speaker Procedure Disconnect the electrical connector. Unsnap speaker from grille. |
Scheme 28
Scheme 28: Radio Front Side Door Speaker Replacement
| Callout | Component Name |
| Preliminary Procedures Remove the front side door trim. Refer to FRONT SIDE DOOR TRIM REPLACEMENT . |
| 1 | Radio Front Side Door Speaker Fastener Refer to CAUTION: RETAINER . |
| 2 | Radio Front Side Door Speaker Procedure Disconnect the electrical connector. |
Scheme 29
Scheme 29: Radio Rear Side Door Speaker Replacement
| Callout | Component Name |
| Preliminary Procedures Remove the rear side door trim. Refer to REAR SIDE DOOR TRIM REPLACEMENT . |
| 1 | Radio Rear Side Door Speaker Screw Refer to CAUTION: RETAINER . |
| 2 | Radio Rear Side Door Speaker Procedure Disconnect the electrical connector. |
Scheme 30
Scheme 30: Radio Rear Compartment Speaker Replacement
| Callout | Component Name |
| Preliminary Procedures Remove the rear compartment floor stowage compartment trim. Refer to REAR COMPARTMENT FLOOR STOWAGE TRIM COMPARTMENT REPLACEMENT . |
| 1 | Radio Rear Compartment Speaker Nut (Qty: 3) Refer to CAUTION: RETAINER . Tighten 6 Nm (53 lb in) |
| 2 | Radio Rear Compartment Speaker Procedure Disconnect the electrical connection. |
Scheme 31
Scheme 31: Rear Liftgate Speaker Replacement
| Callout | Component Name |
| Preliminary Procedures Remove the liftgate lower trim finish panel. Refer to LIFTGATE LOWER TRIM FINISH PANEL REPLACEMENT . |
| 1 | Radio Liftgate Speaker Bolt/Screw (Qty: 2) Refer to CAUTION: RETAINER . |
| 2 | Radio Liftgate Speaker Procedure Disconnect the electrical connectors. |
Scheme 32
Scheme 32: Disc player for audio and USB socket, replace
| Terminal | Component Name |
| 1 | Audio Disc Player and USB socket Procedure Open centre arm support, use a hot melt adhesive tool to press the lugs and remove the socket. |
Scheme 33
Scheme 33: Power, Ground, Serial Data, and Antenna
Scheme 34
Scheme 34: Amplifier Audio Signals (UQS)
Scheme 35
Scheme 35: Speakers (UQ3)
Scheme 36
Scheme 36: Speakers (1 of 2) (UQS)
Scheme 37
Scheme 37: Speakers (2 of 2) (UQS)
Scheme 38
Scheme 38: Rear Seat Audio Controls (ULD)
Scheme 39
Scheme 39: Radio Display (UYE)
Scheme 40
Scheme 40: Radio Display (UYS or UYY)
Scheme 41
Scheme 41: Remote Device Enable
Scheme 42
Scheme 42: External Device Interfaces (UYS or UYY without KTA)
Scheme 43
Scheme 43: External Device Interfaces (KTA)
Scheme 44
Scheme 44: Steering Wheel Audio Controls
Scheme 45
Scheme 45: Power, Ground, Serial Data, and Controls (UE1)
Scheme 46
Scheme 46: Antennas, Microphone, and Radio Signals (UE1)
Scheme 47
Scheme 47: Power, Ground, and Remote Device Enable Signals (EWG)
Scheme 48
Scheme 48: External Device Interface and Video Signals (UWG)
Scheme 49
Scheme 49: Audio and Remote Control Signals (UWG)