Hummer H2. Manual - part 581

Is the resistance within the specified values?

Go to Step 10

18

10

Test the resistance through the seat cushion heater 
element from the heated seat control module 
harness connector. 
Is the resistance less than the specified value?

5 ohm

Go to Step 23

Go to Step 

18

11

Repair the ignition voltage supply circuit to the 
heated seat control module for an open or short to 
ground. Refer to Wiring Repairs and to 
Connector Repairs in Wiring Systems. 
Is the repair complete?

-

Go to Step 25

-

12

Repair the battery voltage supply circuit to the 
heated seat control module for an open or short to 
ground. Refer to Wiring Repairs and to 
Connector Repairs in Wiring Systems. 
Is the repair complete?

-

Go to Step 25

-

13

Repair the heated seat control module ground 
circuit for an open or high resistance. Refer to 
Wiring Repairs and to Connector Repairs in 
Wiring Systems. 
Is the repair complete?

-

Go to Step 25

-

14

1. Disconnect the heated seat switch connector.  

2. Test the heated seat switch signal circuit for 

an open or short to ground. Refer to Circuit 
Testing and to Wiring Repairs in Wiring 
Systems.  

Did you find and correct the condition?

-

Go to Step 25

Go to Step 

15

15

Test the heated seat switch ground circuit for an 
open or high resistance. Refer to Circuit Testing in 
Wiring Systems. 
Did you find and correct the condition?

-

Go to Step 25

Go to Step 

19

16

1. Disconnect the heated seat switch connector.  

2. Test the heated seat switch high indicator 

control circuit for an open or short to ground. 
Refer to Circuit Testing and to Wiring 
Repairs in Wiring Systems.  

Did you find and correct the condition?

-

Go to Step 25

Go to Step 

19

17

1. Disconnect the heated seat switch connector.  

2. Test the heated seat switch low indicator 

control circuit for an open or short to ground. 
Refer to Circuit Testing and to Wiring 
Repairs in Wiring Systems.  

-

Go to Step 

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Seats - Hummer H2

  

SEAT - HARD TO MOVE FORWARD AND REARWARD 

Seat - Hard to Move Forward and Rearward 

Did you find and correct the condition?

Go to Step 25

19

18

1. Disconnect the seat cushion heater element 

connector.  

2. Test the seat cushion heater element and 

thermistor circuits from the heated seat 
control module connector to the seat cushion 
heater element connector for an open or short 
to ground. Refer to Circuit Testing and to 
Wiring Repairs in Wiring Systems.  

Did you find and correct the condition?

-

Go to Step 25

Go to Step 

21

19

Inspect for poor connections at the heated seat 
switch. Refer to Testing for Intermittent 
Conditions and Poor Connections and to 
Connector Repairs in Wiring Systems. 
Did you find and correct the condition?

-

Go to Step 25

Go to Step 

20

20

Replace the heated seat switch. Refer to Heated 
Seat Switch Replacement - Rear . 
Is the repair complete?

-

Go to Step 25

-

21

Inspect for poor connections at the seat cushion 
heater element connector. Refer to Testing for 
Intermittent Conditions and Poor Connections 
and to Connector Repairs in Wiring Systems. 
Did you find and correct the condition?

-

Go to Step 25

Go to Step 

22

22

Replace the seat cushion heater element. Refer to 
Seat Cushion Heater Replacement - Rear . 
Is the repair complete?

-

Go to Step 25

-

23

Inspect for poor connections at the heated seat 
control module. Refer to Testing for Intermittent 
Conditions and Poor Connections and to 
Connector Repairs in Wiring Systems. 
Did you find and correct the condition?

-

Go to Step 25

Go to Step 

24

24

Replace the heated seat control module. 
Is the repair complete?

-

Go to Step 25

-

25

Operate the system in order to verify the repair. 
Did you correct the condition?

-

System OK

Go to Step 3

Problem

Action

The adjusters are not properly lubricated.

Lubricate the channels with Lubricate, or the 
equivalent.

The adjusters are binding because the channels are bent 
or damaged.

Replace the seat adjuster.

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Seats - Hummer H2

  

REPAIR INSTRUCTIONS 

SEAT REPLACEMENT - FRONT BUCKET 

Removal Procedure 

Fig. 16: Front Bucket Seat 
Courtesy of GENERAL MOTORS CORP. 

1. Move the seat to the full rearward position. Remove the front seat nut cover (3).  

The adjusters are not in parallel alignment with each 
other.

Replace the seat adjuster.

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Seats - Hummer H2

  

2. Remove the seat retaining front nuts (1).  

3. Move the seat to the full forward position in order to remove the seat retaining rear bolts (2).  

4. Disconnect the electrical harness.  

5. Remove the seat from the vehicle.  

Installation Procedure 

Fig. 17: Front Bucket Seat 
Courtesy of GENERAL MOTORS CORP. 

1. Position the seat in the vehicle.  

2. Connect the electrical harness. 

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Seats - Hummer H2