Hummer H2. Manual - part 1349

Fig. 17: Crimped Duraseal Splice Sleeve 
Courtesy of GENERAL MOTORS CORP. 

7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop.  

8. Tightly close the handles of the crimp tool until the crimper handles open when released. 

The crimper handles will not open until you apply the proper amount of pressure to the duraseal splice 
sleeve. Repeat steps 4 and 5 for the opposite end of the splice. 

Fig. 18: Identifying Heated Splice Sleeve 
Courtesy of GENERAL MOTORS CORP. 

9. Using the heat torch, apply heat to the crimped area of the barrel.  

10. Gradually move the heat barrel to the open end of the tubing: 

z

The tubing will shrink completely as the heat is moved along the insulation.  

z

A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is 
achieved.  

SIR/SRS System Wire Splice Repair 

Apply a new splice (not sealed) from the J-38125 if damage occurs to any of the original equipment splices (3 
wires or more) in the SIR/SRS wiring harness. Carefully follow the instructions included in the kit for proper 

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Wiring Systems - Hummer H2

  

splice clip application. See Special Tools and Equipment .

Connector Position Assurance (CPA) 

The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of all the 
SIR/SRS system electrical connectors. The CPA ensures that the connector halves cannot vibrate apart. You 
must have the CPA in place in order to ensure good contact between the SIR/SRS mating terminals. 

Terminal Position Assurance (TPA) 

The terminal position assurance (TPA) insert resembles the plastic combs used in the control module 
connectors. The TPA keeps the terminal securely seated in the connector body. Do not remove the TPA from 
the connector body unless you remove a terminal for replacement. 

CONNECTOR REPAIRS 

The Connector Repairs section contains the following types of connector repair information. Using these 
elements together will make connector repair faster and easier: 

z

Connector Position Assurance Locks  

z

Terminal Position Assurance Locks  

z

Push to Seat Connectors  

z

Pull to Seat Connectors  

z

Weather Pack Connectors  

z

Repairing Connector Terminals  

CONNECTOR POSITION ASSURANCE LOCKS 

The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of the 
connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in all SIR system 
electrical connectors. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA 
in place in order to ensure good contact between the mating terminals, of the connector. 

TERMINAL POSITION ASSURANCE LOCKS 

The terminal position assurance (TPA) insert resembles the plastic combs used in the control module 
connectors. The TPA keeps the terminal securely seated in the connector body. Do not remove the TPA from 
the connector body unless you remove a terminal for replacement. 

PUSH TO SEAT CONNECTORS 

Terminal Removal 

Follow the steps below in order to repair push to seat connectors.

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Wiring Systems - Hummer H2

  

Fig. 19: Separating Weather Pack Connector Halves 
Courtesy of GENERAL MOTORS CORP. 

1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA) device, 

and/or the secondary lock.  

2. Separate the connector halves (1). 

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Wiring Systems - Hummer H2

  

Fig. 20: Removing Cable & Terminal From Connector 
Courtesy of GENERAL MOTORS CORP. 

3. Use the proper pick or removal tool (1) in order to release the terminal.  

4. Gently pull the cable and the terminal (2) out of the back of the connector. 

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Wiring Systems - Hummer H2