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Hummer H2. Manual - part 410

Front Passenger Door Module (FPDM) - Terminal Identification - C1

Front Passenger Door Module (FPDM) - Terminal Identification - C2

D-BU

660

Left Front Door Courtesy Lamp Control

5-9

Not Used

1690

Automatic Day/Night Mirror Signal

Not Used

1691

Automatic Day/Night Mirror Low Reference

D-BU/WH

149

Courtesy Lamp-Left Front Door Supply Voltage

4140

Battery Positive Voltage

L-GN

262

Driver Door Key Switch Signal

16-17

Not Used

GY/BK

745

Left Front Door Ajar Switch Signal

Not Used

294

Door Lock Actuator Unlock Control

295

Door Lock Actuator Lock Control

1046

DDM Class 2 Serial Data

23-26

Not Used

Connector Part Information

15393410

4-Way F 2.8mm Sealed AMP (NA)

Pin

Wire Color

Circuit No.

Function

667

Power Window Motor Right Front Down Control

1340

Battery Positive Voltage

1050

Ground

D-BU

666

Power Window Motor Right Front Up Control

2004 Hummer H2

2004 ACCESSORIES & EQUIPMENT Keyless Entry - Hummer H2

DIAGNOSTIC INFORMATION AND PROCEDURES

DIAGNOSTIC STARTING POINT - KEYLESS ENTRY

Begin the system diagnosis with Diagnostic System Check - Remote Keyless Entry . The Diagnostic System
Check will provide the following information:

Connector Part Information

15398841

26-Way F AMP Lever Assist (BK)

Pin

Wire Color

Circuit No.

Function

1-4

Not Used

BK/WH

746

Right Front Door Ajar Switch Signal

6-7

Not Used

156

Courtesy Lamp-Right Front Door Supply Voltage

Not Used

295

Door Lock Actuator Lock Control

294

Door Lock Actuator Unlock Control

12-13

Not Used

4240

Battery Positive Voltage

15-18

Not Used

L-BU

661

Right Front Door Courtesy Lamp Control

D-GN

1178

Right Front Door Switch Low Reference

Not Used

1047

PDM Class 2 Serial Data

Not Used

L-GN

265

Passenger Door Key Switch Signal

25-26

Not Used

2004 Hummer H2

2004 ACCESSORIES & EQUIPMENT Keyless Entry - Hummer H2

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

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

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 - REMOTE KEYLESS ENTRY

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. Any other body
control module DTCs displayed by the scan tool do not apply to Remote Keyless Entry and should be
diagnosed in the applicable section.

Diagnostic System Check - Remote Keyless Entry

Step

Action

Yes

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

1. Turn ON the ignition, with the

engine OFF.

2. Attempt to establish

communication with the
following control modules.

body control module

passenger door module

Does the scan tool communicate with
all of the listed control modules?

Go to Step 3

Go to Scan Tool Does Not

Communicate with Class 2

Device in Data Link

Communications

1. Access the Class 2 Power Mode

in the Diagnostic Circuit Check

IMPORTANT:

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

2004 Hummer H2

2004 ACCESSORIES & EQUIPMENT Keyless Entry - Hummer H2

SCAN TOOL OUTPUT CONTROLS

Scan Tool Output Controls

SCAN TOOL DATA LIST

Scan Tool Data List

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?

Go to Step 4

Go to Power Mode

Mismatch in Body Control

System

Select the display DTCs function on
the scan tool.

body control module

passenger door module

Does the scan tool display any DTCs?

Go to Step 5

Go to Symptoms - Keyless

Entry

Does the scan tool display any DTCs
which begin with a "U"?

Go to Scan Tool Does Not

Communicate with Class 2

Device in Data Link

Communications

Go to Diagnostic Trouble

Code (DTC) List in Body

Control System

Scan Tool

Output

Control

Additional

Menu Selections

Description

Special
Functions

Program All Key
Fobs

The Passenger door module will erase all previously programmed key
fobs and then program the first fob as Fob 1, the next fob as Fob 2,
and any additional fobs as Fob 3 and Fob 4.

Special
Functions

Program
Individual Key
Fob

The Passenger door module will program a key fob to any one of 4
possible positions: Key Fob 1-4.

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON, Engine OFF

Fob 1 Battery

Passenger Door Module Data

OK, Low

Fob 2 Battery

Passenger Door Module Data

OK, Low

Fob 3 Battery

Passenger Door Module Data

OK, Low

Fob 4 Battery

Passenger Door Module Data

OK, Low

2004 Hummer H2

2004 ACCESSORIES & EQUIPMENT Keyless Entry - Hummer H2

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