Hummer H2. Manual — part 631

Window Terminal Identification Motor - RR

Window Terminal Identification Switch - LR

Connector Part Information

z

12129487

z

2-Way F Metri-Pack 280 Series Flexlock Sealed (M-GY)

Pin

Wire Color

Circuit No.

Function

A

BN

669

Power Window Motor Left Rear Down Control

B

D-BU

668

Power Window Motor Left Rear Up Control

Connector Part Information

z

12129487

z

2-Way F Metri-Pack 280 Series Flexlock Sealed (M-GY)

Pin

Wire Color

Circuit No.

Function

A

BN

671

Power Window Motor Right Rear Down Control

B

D-BU

670

Power Window Motor Right Rear Up Control

2004 Hummer H2

2004 ACCESSORIES & EQUIPMENT Doors - Hummer H2

Window Terminal Identification Switch - RR

Connector Part Information

z

12191825

z

8-Way F Metri-Pack 280 Series (BN)

Pin

Wire Color

Circuit No.

Function

A

OG

1240

Battery Positive Voltage

B

YE

1187

Power Window Switch Relay Left Rear Down Control

C

WH

1185

Power Window Switch Relay Left Rear Up Control

D

L-BU

2265

Power Window Lockout Left Rear Signal

E

BK

1150

Ground

F

D-BU

668

Power Window Motor Left Rear Up Control

G

BN

669

Power Window Motor Left Rear Down Control

H

BN/WH

230

Instrument Panel Lamps Dimming Control

2004 Hummer H2

2004 ACCESSORIES & EQUIPMENT Doors - Hummer H2

DIAGNOSTIC INFORMATION AND PROCEDURES

DIAGNOSTIC STARTING POINT - DOORS

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

z

The identification of the control module(s) which command the system.

z

The ability of the control module(s) to communicate through the serial data circuit.

z

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.

DIAGNOSTIC SYSTEM CHECK - DOOR SYSTEMS

Test Description

The numbers below refer to the step numbers on the diagnostic table.

2: Lack of communication may be due to a partial malfunction of the class 2 serial data circuit or due to a
total malfunction of the class 2 serial data circuit. The specified procedure will determine the particular
condition.

5: The presence of DTCs which begin with "U" indicate some other module is not communicating. The
specified procedure will compile all the available information before tests are performed.

Diagnostic System Check - Door Systems

Connector Part Information

z

12191825

z

8-Way F Metri-Pack 280 Series (BN)

Pin

Wire Color

Circuit No.

Function

A

OG

1340

Battery Positive Voltage

B

D-GN

1188

Power Window Switch Relay Right Rear Down Control

C

GY/BK

1186

Power Window Switch Relay Right Rear Up Control

D

L-GN

2266

Power Window Lockout Right Rear Signal

E

BK

1250

Ground

F

D-BU

670

Power Window Motor Right Rear Up Control

G

BN

671

Power Window Motor Right Rear Down Control

H

BN/WH

230

Instrument Panel Lamps Dimming Control

Step

Action

Yes

No

1

Install a scan tool.
Does the scan tool power up?

Go to Step 2

Go to Scan Tool Does Not

Power Up in Data Link

Communications

2004 Hummer H2

2004 ACCESSORIES & EQUIPMENT Doors - Hummer H2

2

1. Turn ON the ignition, with the

engine OFF.

2. Attempt to establish

communication with the
following modules:

z

The driver door module

z

The passenger door
module

z

The body control module

z

The powertrain control
module

z

The instrument panel
cluster

Does the scan tool communicate with
all of the modules?

Go to Step 3

Go to Scan Tool Does Not

Communicate with Class 2

Device in Data Link

Communications

3

1. Access the Class 2 Power Mode

in the Diagnostic Circuit Check
on the scan tool.

2. Rotate the ignition switch

through all positions while
observing the ignition switch
power mode parameter.

Does the ignition switch parameter
reading match the ignition switch
position for all switch positions?

IMPORTANT:

The engine may start during the
following step. Turn OFF the engine
as soon as you have observed the
Crank power mode.

Go to Step 4

Go to Power Mode

Mismatch in Body Control

System

4

With the scan tool, select the Display
DTCs function for each of the
following modules:

z

The driver door module

z

The passenger door module

z

The body control module

z

The powertrain control module

z

The instrument panel cluster

2004 Hummer H2

2004 ACCESSORIES & EQUIPMENT Doors - Hummer H2