Contents Wiring diagrams Section: Exterior Lights All sections

Lighting Systems: Specifications Hummer H2 I

Exterior Lights 29 illustrations ~3176 words

Fastener Tightening Specifications

ApplicationSpecification
MetricEnglish
DRL Lamp Nuts6 N.m53 lb in
Clearance Lamp Screw3 N.m26 lb in
Front Marker Lamp Screws3 N.m26 lb in
Headlamp Nuts6 N.m53 lb in
High Mounted Stop Lamp Screws3 N.m26 lb in
License Lamp Screws3 N.m26 lb in
License Plate Pocket Nuts - SUV6 N.m53 lb in
License Plate Spare Wheel Cover Nut - SUT6 N.m53 lb in
Park/Turn Lamp Nuts6 N.m53 lb in
Rear Marker Lamp Screws3 N.m26 lb in
Rear Tail/Turn Lamp Screws6 N.m53 lb in

Fastener Tightening Specifications

Lighting Systems Schematic Icons Icon Icon Definition CAUTION: When performing service on or near the SIR components or the SIR wiring, the SIR system must be disabled. Refer to SIR Disabling and Enabling Zones. Failure to observe the correct procedure could cause deployment of the SIR components, personal injury, or unnecessary SIR system repairs

Scheme 1

Scheme 1: Headlights Schematics

Scheme 2

Scheme 2

Scheme 3

Scheme 3: Headlights/Daytime Running Lights (DRL) Schematics

Scheme 4

Scheme 4: Exterior Lights Schematics

Scheme 5

Scheme 5

Scheme 6

Scheme 6

Scheme 7

Scheme 7

Scheme 8

Scheme 8

Scheme 9

Scheme 9

Scheme 10

Scheme 10

Scheme 11

Scheme 11

Scheme 12

Scheme 12

Scheme 13

Scheme 13

Scheme 14

Scheme 14

Scheme 15

Scheme 15: Interior Lights Schematics

Scheme 16

Scheme 16

Scheme 17

Scheme 17

Scheme 18

Scheme 18

Scheme 19

Scheme 19: Interior Lights Dimming Schematics

Scheme 20

Scheme 20

Scheme 21

Scheme 21

Scheme 22

Scheme 22

Scheme 23

Scheme 23

Scheme 24

Scheme 24

Scheme 25

Scheme 25: Lighting Systems Component Views
CalloutComponent Name
1Roof Lamps - Center Front
2Clearance Lamp - LF
3Marker Lamp - LF
4Park/Turn Signal Lamp - Left
5Headlamp - High Beam/Low Beam - Left
6Daytime Running Lamp (DRL) - Left
7G100
8Forward Lamp Harness
9Daytime Running Lamp (DRL) - Right
10Headlamp - High Beam/Low Beam - Right
11Park/Turn Signal Lamp - Right
12Marker Lamp - RF
13Clearance Lamp - RF

Scheme 26

Scheme 26
CalloutComponent Name
1Center High Mounted Stop Lamp (CHMSL)
2Roof Lamps - Center Rear
3Clearance Lamp - RR
4Backup Lamp - RH
5Turn Signal Lamp - RR
6Tail/Stop Lamp - Right
7License Lamps
8Trailer Connector
9Tail/Stop Lamp - Left
10Turn Signal Lamp - LR
11Backup Lamp - LH
12Marker Lamp - LR
13Clearance Lamp - LR

Scheme 27

Scheme 27
CalloutComponent Name
1I/P Compartment Lamp Connector
2I/P Compartment Lamp
3Courtesy Lamp - Right B Pillar (Right Side Similar)
4B Pillar Trim Panel
5Body Harness
6Left Front Door
7Courtesy Lamp - Left Front Door Connector
8Courtesy Lamp - Left Front Door (Right Side Similar)
9Brake Pedal Assembly
10Stop Lamp Switch
11Footwell Courtesy Lamp - Left (Right Side Similar)
12Data Link Connector (DLC)
13Fuse Block - I/P C1

Scheme 28

Scheme 28
CalloutComponent Name
1Courtesy/Reading Lamp - Center
2Courtesy/Reading Lamp - Front
3Courtesy/Reading Lamp - Front
4Overhead Console (w/o Sunroof)
5Courtesy/Reading Lamp - Rear
6Liftgate Ajar Switch - Left
7Liftgate Ajar Switch - Right
8Liftgate Harness
9Junction Block - Rear
10Chassis Harness
11Turn Signal Multifunction Switch
12Headlamp and Panel Dimmer Switch
13Vanity Mirror Lamp Connector - Left
14Vanity Mirror Lamp Connector - Right

Scheme 29

Scheme 29
CalloutComponent Name
1Off Road Lamps - Switch
2Overhead Console w/Front Courtesy/Reading Lamps (CF5)
3Off Road Lamps - Roof
4Relay Block - I/P
5Relay Block - I/P C7 (Off Road Lamp Harness)
6Off Road Lamps Relays
7Instrument Panel Rail

Backup Lamp Terminal Identification - Left Connector Part Information 0001035 2-Way F CE-F29.14-5A Series (GY) Pin Wire Color Circuit No. Function A GY 24 Backup Lamp Supply Voltage B GY/BK 1750 Ground

Backup Lamp Terminal Identification - Right Connector Part Information 0001035 2-Way F CE-F29.14-5A Series (GY) Pin Wire Color Circuit No. Function A GY 24 Backup Lamp Supply Voltage B GY/BK 1750 Ground

Center High Mounted Stop Lamp (CHMSL) Terminal Identification Connector Part Information 12047663 2-Way M Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A L-BU 1620 Trailer CHMSL Supply Voltage B BK 1450 Ground

Clearance Lamp Terminal Identification - LF Connector Part Information 12047663 2-Way M Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A BN 2409 Interior Park Lamps Supply Voltage B BK 1050 Ground

Clearance Lamp Terminal Identification - LR Connector Part Information 12047663 2-Way M Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A BN 2409 Interior Park Lamps Supply Voltage B BK 1450 Ground

Clearance Lamp Terminal Identification - RF Connector Part Information 12047663 2-Way M Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A BN 2409 Interior Park Lamps Supply Voltage B BK 1050 Ground

Clearance Lamp Terminal Identification - RR Connector Part Information 12047663 2-Way M Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A BN 2409 Interior Park Lamps Supply Voltage B BK 1450 Ground

Courtesy Lamp Terminal Identification - Left B Pillar Connector Part Information 12162222 2-Way Metri-Pack 150.2 Series Sealed Pull To Seat (WH) Pin Wire Color Circuit No. Function A GY/BK 690 Courtesy Lamp Supply Voltage B BK 1150 Ground

Courtesy Lamp Terminal Identification - Left Front Door Connector Part Information 12047662 2-Way F Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A D-BU/WH 149 Courtesy Lamp Supply Voltage B D-BU 660 Left Courtesy Lamp Control

Courtesy Lamp Terminal Identification - Left Rear Door Connector Part Information 12047662 2-Way F Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A GY/BK 690 Courtesy Lamp Supply Voltage B BK 1150 Ground

Courtesy Lamp Terminal Identification - Right B Pillar Connector Part Information 12162222 2-Way Metri-Pack 150.2 Series Sealed Pull To Seat (WH) Pin Wire Color Circuit No. Function A GY/BK 690 Courtesy Lamp Supply Voltage B BK 1250 Ground

Courtesy Lamp Terminal Identification - Right Front Door Connector Part Information 12047662 2-Way F Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A WH 156 Courtesy Lamp Supply Voltage B L-BU 661 Right Courtesy Lamp Control

Courtesy Lamp Terminal Identification - Right Rear Door Connector Part Information 12047662 2-Way F Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A GY/BK 690 Courtesy Lamp Supply Voltage B BK 1250 Ground

Courtesy/Reading Lamp Terminal Identification - Center Connector Part Information 12047781 3-Way F Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A GY/BK 690 Courtesy Lamp Supply Voltage B BK 1050 Ground C OG 1732 Inadvertent Load Control Courtesy Lamps Supply Voltage

Courtesy/Reading Lamps Terminal Identification - Left Front Connector Part Information 12047781 3-Way F Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A GY/BK 690 Courtesy Lamp Supply Voltage B BK 1050 Ground C OG 1732 Inadvertent Power Courtesy Lamps Supply Voltage

Courtesy/Reading Lamps Terminal Identification - Right Front Connector Part Information 12047781 3-Way F Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A GY/BK 690 Courtesy Lamp Supply Voltage B BK 1050 Ground C OG 1732 Inadvertent Power Courtesy Lamps Supply Voltage

Courtesy/Reading Lamp Terminal Identification - Rear Connector Part Information 12047781 3-Way F Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A GY/BK 690 Courtesy Lamp Supply Voltage B BK 1050 Ground C OG 1732 Inadvertent Power Courtesy Lamps Supply Voltage

Daytime Running Lamp (DRL) Terminal Identification - Left Connector Part Information 15409404 3-Way F SLD Delphi Packard (BK) Pin Wire Color Circuit No. Function 1 BK 150 Ground 2 - - Plugged 3 D-BU 545 DRL Supply Voltage

Daytime Running Lamp (DRL) Terminal Identification - Right Connector Part Information 15409404 3-Way SLD Delphi Packard (BK) Pin Wire Color Circuit No. Function 1 BK 150 Ground 2 - - Plugged 3 D-BU 545 DRL Supply Voltage

Door Latch Assembly Terminal Identification - Driver Connector Part Information 10768367 10-Way F AMP SLD (BK) Pin Wire Color Circuit No. Function 1 - - Not Used 2 TN 294 Door Lock Actuator Unlock Control 3 GY 295 Door Lock Actuator Lock Control 4-5 - - Not Used 6 GY/BK 745 Left Front Door Ajar Switch Signal 7 - - Not Used 8 BN 1183 Left Front Door Switch Low Reference 9 L-GN 262 Driver Door Key Switch Signal 10 - - Not Used

Door Latch Assembly Terminal Identification - Front Passenger Connector Part Information 10768367 10-Way F AMP SLD (BK) Pin Wire Color Circuit No. Function 1 BK/WH 746 Right Front Door Ajar Switch Signal 2 - - Not Used 3 D-GN 1178 Right Front Door Switch Low Reference 4 L-GN 265 Passenger Door Key Switch Signal 5-6 - - Not Used 7 TN 294 Door Lock Actuator Unlock Control 8 GY 295 Door Lock Actuator Lock Control 9-10 - - Not Used

Door Latch Assembly Terminal Identification - LR Connector Part Information 10768369 6-Way F AMP SLD (BK) Pin Wire Color Circuit No. Function 1 - - Not Used 2 TN 294 Door Lock Actuator Unlock Control 3 GY 295 Door Lock Actuator Lock Control 4 L-BU/BK 747 Left Rear Door Ajar Switch Signal 5 - - Not Used 6 BK 1150 Ground

Door Latch Assembly Terminal Identification - RR Connector Part Information 10768369 6-Way F AMP SLD (BK) Pin Wire Color Circuit No. Function 1 L-GN/BK 748 Right Rear Door Ajar Switch Signal 2 - - Not Used 3 BK 1250 Ground 4 - - Not Used 5 TN 294 Door Lock Actuator Unlock Control 6 GY 295 Door Lock Actuator Lock Control

Driver Door Module (DDM) Terminal Identification - C2 Connector Part Information 15398841 26-Way F AMP Lever Assist (BK) Pin Wire Color Circuit No. Function 1-2 - - Not Used 3 BN 1183 Left Front Door Switch Low Reference 4 D-BU 660 Left Courtesy Lamp Control 5-9 - - Not Used 10 GY 1690 Automatic Day/Night Mirror Signal 11 - - Not Used 12 PK 1691 Automatic Day/Night Mirror Low Reference 13 D-BU/WH 149 Courtesy Lamp - Left Front Door Supply Voltage 14 OG 4140 Battery Positive Voltage 15 L-GN 262 Driver Door Key Switch Signal 16-17 - - Not Used 18 GY/BK 745 Left Front Door Ajar Switch Signal 19 - - Not Used 20 TN 294 Door Lock Actuator Unlock Control 21 GY 295 Door Lock Actuator Lock Control 22 BN 1046 DDM Class 2 Serial Data 23-26 - - Not Used

Front Passenger Door Module (FPDM) Terminal Identification - C2 Connector Part Information 15398841 26-Way F AMP Lever Assist (BK) Pin Wire Color Circuit No. Function 1-4 - - Not Used 5 BK/WH 746 Right Front Door Ajar Switch Signal 6-7 - - Not Used 8 WH 156 Courtesy Lamp - Right Front Door Supply Voltage 9 - - Not Used 10 GY 295 Door Lock Actuator Lock Control 11 TN 294 Door Lock Actuator Unlock Control 12-13 - - Not Used 14 OG 4240 Battery Positive Voltage 15-18 - - Not Used 19 L-BU 661 Right Courtesy Lamp Control 20 D-GN 1178 Right Front Door Switch Low Reference 21 - - Not Used 22 TN 1047 PDM Class 2 Serial Data 23 - - Not Used 24 L-GN 265 Passenger Door Key Switch Signal 25-26 - - Not Used

Headlamp and Panel Dimmer Terminal Identification Switch Connector Part Information 15393872 14-Way F (GN) Pin Wire Color Circuit No. Function 1 PU 328 Interior Lamp Defeat Switch Signal 2 GY/BK 308 Park Lamp Switch On Signal 3 BK/WH 1851 Ground 4 WH 103 Headlamp Switch On Signal 5 D-GN 588 DRL Switch Signal 6 BK 1050 Ground 7 PK 1348 Headlamp On Indicator Control 8 PU 359 DRL Off Indicator Switch 9 PU/WH 1382 LED Dimming Signal 10 D-BU/WH 1495 Courtesy Lamps On Signal 11 OG/BK 2090 Dimmer Potentiometer Signal 12 GY/BK 2226 Dimmer Switch Low Reference 13 GY 1056 Dimming Potentiometer 5-volt Reference 14 BN/WH 230 Instrument Panel Lamps Dimming Control

Headlamp Terminal Identification - Left Connector Part Information 12048369 3-Way F Metri-Pack 280 Series Sealed (BU) Pin Wire Color Circuit No. Function A YE 712 Left Headlamp Low Beam Supply Voltage B BK 550 Ground C D-GN/WH 711 Left Headlamp High Beam Supply Voltage

Headlamp Terminal Identification - Right Connector Part Information 12048369 3-Way F Metri-Pack 280 Series Sealed (BU) Pin Wire Color Circuit No. Function A TN/WH 312 Right Headlamp Low Beam Supply Voltage B BK 150 Ground C L-GN/BK 311 Right Headlamp High Beam Supply Voltage

I/P Compartment Terminal Identification Lamp/Switch Connector Part Information 12047662 2-Way F Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A OG 1732 Inadvertent Power Courtesy Lamps Supply Voltage B BK 1050 Ground

Junction Block Terminal Identification - Rear - C1 Connector Part Information 15317304 8-Way F GT 280 Sealed (BU) Pin Wire Color Circuit No. Function A L-BU 2114 Left Turn Signal Lamps Supply Voltage B L-BU 1320 Stop Lamp Supply Voltage C L-GN 24 Backup Lamp Supply Voltage D BN/WH 2609 Right Rear Park Lamps Supply Voltage E BK 1750 Ground F - - Not Used G BN 2509 Left Rear Park Lamps Supply Voltage H D-BU 2115 Right Turn Signal Lamps Supply Voltage

Junction Block Terminal Identification - Rear - C2 Connector Part Information 15317305 8-Way F GT 280 SLD (MD GY) Pin Wire Color Circuit No. Function A L-GN/BK 1750 Ground B GY/BK 1750 Ground C BK 1750 Ground D RD 1320 CHMSL Supply Voltage/Stop Lamp Supply Voltage E BU 2509 Left Rear Park Lamps Supply Voltage F GY 24 Backup Lamp Supply Voltage G - - Not Used H OG 2114 Left Turn Signal Lamps Supply Voltage

Junction Block Terminal Identification - Rear - C3 Connector Part Information 15317306 8-Way F GT 280 SLD (BK) Pin Wire Color Circuit No. Function A RD 1320 CHMSL Supply Voltage/Stop Lamp Supply Voltage B L-BU 2609 Right Rear Park Lamps Supply Voltage C L-GN/BK 1750 Ground D BK 1750 Ground E GY 24 Backup Lamp Supply Voltage F OG 2115 Right Turn Signal Lamps Supply Voltage G - - Not Used H GY/BK 1750 Ground

License Lamp Terminal Identification - Left Connector Part Information 15300027 2-Way F Metri-Pack 280 Series Sealed (BK) Pin Wire Color Circuit No. Function A BN/WH 2509 Left License Lamp Supply Voltage B BK 1450 Ground

License Lamp Terminal Identification - Right Connector Part Information 15300027 2-Way F Metri-Pack 280 Series Sealed (BK) Pin Wire Color Circuit No. Function A BN/WH 2609 Right License Lamp Supply Voltage B BK 1450 Ground

Liftgate Ajar Switch Terminal Identification - Left Connector Part Information 12052644 2-Way F Metri-Pack 150 Series Sealed (GY) Pin Wire Color Circuit No. Function A BK 1450 Ground B PK/BK 1303 Liftgate Ajar Switch Signal

Liftgate Ajar Switch Terminal Identification - Right Connector Part Information 12052644 2-Way F Metri-Pack 150 Series Sealed (GY) Pin Wire Color Circuit No. Function A BK 1450 Ground B PK/BK 1303 Liftgate Ajar Switch Signal

Marker Lamp Terminal Identification - LF Connector Part Information 12162000 2-Way M Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A BN 2309 Front Park Lamps Supply Voltage B L-BU 2114 Left Turn Signal Lamps Supply Voltage

Marker Lamp Terminal Identification - RF Connector Part Information 12162000 2-Way M Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A BN 2309 Front Park Lamps Supply Voltage B D-BU 2115 Right Turn Signal Lamps Supply Voltage

Marker Lamp Terminal Identification - LR Connector Part Information 12052641 2-Way F Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A BN 2509 Left Rear Marker Lamp Supply Voltage B L-BU 2114 Left Turn Signal Lamps Supply Voltage

Marker Lamp Terminal Identification - RR Connector Part Information 12052641 2-Way F Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A BN/WH 2609 Right Rear Marker Lamp Supply Voltage B D-BU 2115 Right Turn Signal Lamps Supply Voltage

Off-Road Lamps Terminal Identification - Grille Guard (w/UNR) Connector Part Information 12052641 2-Way F Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A PU 2234 Front Off-Road Lamps Supply Voltage B BK 1050 Ground

Off-Road Lamps Terminal Identification - Relay 1 (w/USB/USC or UNR) Connector Part Information 871896 5-Way F Sumitomo (BK) Pin Wire Color Circuit No. Function 1 RD 122 Roof Off-Road Lamps Supply Voltage 1 2 YE 317 Off-Road Lamp Relay Control 3 - - Not Used 4 BU 316 Battery Positive Voltage 5 BK 1050 Ground

Off-Road Lamps Terminal Identification - Relay 2 (w/USB/USC or UNR) Connector Part Information 871896 5-Way F Sumitomo (BK) Pin Wire Color Circuit No. Function 1 PU 34 Front Off-Road Lamps Supply Voltage (UNR) PU 2234 Roof Off-Road Lamps Supply Voltage 2 (USB/USC) 2 YE 317 Off-Road Lamp Relay Control 3 - - Not Used 4 BU 316 Battery Positive Voltage 5 BK 1050 Ground

Off-Road Lamps Terminal Identification - Roof Inner (w/USB/USC) Connector Part Information 12052641 2-Way F Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A RD 122 Roof Off-Road Lamps Supply Voltage 1 B BK 1050 Ground

Off-Road Lamps Terminal Identification - Roof Outer (w/USB/USC) Connector Part Information 12052641 2-Way F Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A PU 34 Roof Off-Road Lamps Supply Voltage 2 B BK 1050 Ground

PRNDL Terminal Identification Lamp (2) Connector Part Information 12162711 2-Way W-2 Axial (BK) Pin Wire Color Circuit No. Function A BN/WH 230 Instrument Panel Lamps Dimming Control B BK 1050 Ground

Park/Turn Signal Lamp Terminal Identification - LF Connector Part Information 15409405 3-Way F 3W SLD (BK) Pin Wire Color Circuit No. Function 1 BK 150 Ground 2 BN 2309 Front Park Lamps Supply Voltage 3 L-BU 2114 Left Turn Signal Lamps Supply Voltage

Park/Turn Signal Lamp Terminal Identification - RF Connector Part Information 15409405 3-Way F 3W SLD (BK) Pin Wire Color Circuit No. Function 1 BK 150 Ground 2 BN 2309 Front Park Lamps Supply Voltage 3 D-BU 2115 Right Turn Signal Lamps Supply Voltage

Roof Lamps Terminal Identification - Center Front (3) Connector Part Information 15300027 2-Way F Metri-Pack 280 Series Sealed (BK) Pin Wire Color Circuit No. Function A BN 2409 Interior Park Lamps Supply Voltage B BK 1050 Ground

Roof Lamps Terminal Identification - Center Rear (3) Connector Part Information 15300027 2-Way F Metri-Pack 280 Series Sealed (BK) Pin Wire Color Circuit No. Function A BN 2409 Interior Park Lamps Supply Voltage B BK 1450 Ground

Stop Lamp Terminal Identification Switch Connector Part Information 12040551 6-Way F Metri-Pack 480 Series (BK) Pin Wire Color Circuit No. Function A WH 17 Stop Lamp Switch Signal B OG 1540 Battery Positive Voltage C BN 441 Ignition 3 Voltage D PU 420 TCC Brake Switch/Cruise Control Release Signal E L-GN/BK 584 A/T Shift Lock Control Switch Supply Voltage F D-GN/WH 1135 A/T Shift Lock Control Solenoid Supply Voltage

Tail/Stop Lamp Terminal Identification - Left Connector Part Information 0001036 3-Way F CE-F29.14-6A Series (BK) Pin Wire Color Circuit No. Function A RD 1320 Stop Lamp Supply Voltage B L-GN/BK 1750 Ground C L-BU 2509 Left Rear Park Lamps Supply Voltage

Tail/Stop Lamp Terminal Identification - Right Connector Part Information 0001036 3-Way F CE-F29.14-6A Series (BK) Pin Wire Color Circuit No. Function A RD 1320 Stop Lamp Supply Voltage B L-GN/BK 1750 Ground C L-BU 2609 Right Rear Park Lamps Supply Voltage

Turn Signal Lamp Terminal Identification - LR Connector Part Information 0001035 2-Way F CE-F29.14-5A Series (BK) Pin Wire Color Circuit No. Function A OG 2114 Left Turn Signal Lamps Supply Voltage B BK 1750 Ground

Turn Signal Lamp Terminal Identification - RR Connector Part Information 0001035 2-Way F CE-F29.14-5A Series (BK) Pin Wire Color Circuit No. Function A OG 2115 Right Turn Signal Lamps Supply Voltage B BK 1750 Ground

Trailer Terminal Identification Connector Connector Part Information 15354653 7-Way F Metri-Pack 280 Sealed (BK) Pin Wire Color Circuit No. Function A L-GN 1624 Trailer Backup Lamps Supply Voltage B BK 1750 Ground C D-BU 47 Trailer Auxiliary Supply Voltage D D-GN 1619 Trailer Right Rear Turn/Stop Lamp Supply Voltage E RD 742 Battery Positive Voltage F BN 2109 Trailer Park Lamps Supply Voltage G YE 1618 Trailer Left Rear Turn/Stop Lamp Supply Voltage

Turn Signal/Multi-Function Switch Terminal Identification - C1 Connector Part Information 12064862 8-Way F Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A L-GN 1427 Right Turn Signal Switch Signal B PK 639 Ignition 1 Voltage C D-GN 1428 Left Turn Signal Switch Signal D-F - - Not Used G BK/YE 28 Horn Relay Control H WH 111 Hazard Switch Signal

Turn Signal/Multi-Function Switch Terminal Identification - C3 Connector Part Information 12059800 5-Way F Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A TN 1851 Ground B YE/BK 307 Headlamp Switch Flash to Pass Signal C L-GN 11 Headlamp Dimmer Switch Signal D-E - - Not Used

Underhood Terminal Identification Lamp (If Equipped) Connector Part Information 12052641 2-Way F Metri-Pack 150 Series Sealed (BK) Pin Wire Color Circuit No. Function A OG 1732 Inadvertent Power Courtesy Lamps Supply Voltage B BK 1050 Ground

Vanity Mirror Lamp Terminal Identification - Left Connector Part Information 12047663 2-Way M Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A OG 1732 Inadvertent Power Courtesy Lamps Supply Voltage B BK 1050 Ground

Vanity Mirror Lamp Terminal Identification - Right Connector Part Information 12047663 2-Way M Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A OG 1732 Inadvertent Power Courtesy Lamps Supply Voltage B BK 1050 Ground

Begin the system diagnosis with the Diagnostic System Check - Lighting Systems . The Diagnostic System Check will provide the following information

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

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