Hummer H2. Manual - part 344

Fig. 94: Dash Rail Bolt 
Courtesy of GENERAL MOTORS CORP. 

12. Route the section of the body harness containing the relays along the dash panel rail. Install bolt (1) 

through the opening in the dash rail, through the relays and into the J-nut on the upper relay flange. 

Tighten: Tighten bolt to 7 N.m (62 lb in). 

13. Locate the harness for the overhead clearance lamp, which is located near the top of the A-pillar above 

the headliner, and disconnect.  

14. Remove the drivers side front overhead marker lamp and bulb. Refer toClearance Lamp Replacement 

(SUV) .  

15. Remove the clearance lamp harness through the hole in the roof, being careful not snag or force harness 

out. 

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Lighting Systems - Hummer H2

  

Fig. 95: Guiding Section Harness Containing 3 Wire Connectors 
Courtesy of GENERAL MOTORS CORP. 

16. Guide the section of the harness containing the 3 individual wire connectors down through the hole where 

the original harness was removed in step 9, and into the vehicle along the A-pillar. 

IMPORTANT: Seat grommet properly in hole to insure a watertight seal. Failure to do so 

will cause water damage to the vehicle.

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Lighting Systems - Hummer H2

  

Fig. 96: Wires & Marker Lamp Pocket 
Courtesy of GENERAL MOTORS CORP. 

17. Guide the remaining wires through the opening (1) the marker lamp pocket in the roof rail. 

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Lighting Systems - Hummer H2

  

Fig. 97: Guiding Wires Into Connector 
Courtesy of GENERAL MOTORS CORP. 

18. Guide the wires into the connector. Once terminals are fully seated, close the retaining clip of the 

connector. Wires are to be placed in this order: 

z

Opening A = Purple wire  

z

Opening B = Black wire  

z

Opening C = Red wire  

19. Insert connector into the connector from the light bar assembly.  

20. Re-install the clearance lamp, making sure to re-install the lamp bulb. Refer to Clearance Lamp 

Replacement (SUV) . 

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Lighting Systems - Hummer H2