Hummer H2. Manual — part 199
2004 ACCESSORIES & EQUIPMENT
Garage Door Opener - Hummer H2
SPECIFICATIONS
FASTENER TIGHTENING SPECIFICATIONS
Fastener Tightening Specifications
SCHEMATIC AND ROUTING DIAGRAMS
GARAGE DOOR OPENER SCHEMATICS
Fig. 1: Garage Door Opener
Courtesy of GENERAL MOTORS CORP.
COMPONENT LOCATOR
Application
Specification
Metric
English
Transmitter Module Retaining Screws
2 N.m
18 lb in
2004 Hummer H2
2004 ACCESSORIES & EQUIPMENT Garage Door Opener - Hummer H2
2004 Hummer H2
2004 ACCESSORIES & EQUIPMENT Garage Door Opener - Hummer H2
GARAGE DOOR OPENER COMPONENT VIEWS
Fig. 2: Garage Door Opener Component Views
Courtesy of GENERAL MOTORS CORP.
Callouts For Fig. 2
GARAGE DOOR OPENER CONNECTOR END VIEWS
Garage Door Opener - Terminal Identification
Callout
Component Name
1
Garage Door Opener
2
Noise Cancellation Microphone
3
Overhead Console
2004 Hummer H2
2004 ACCESSORIES & EQUIPMENT Garage Door Opener - Hummer H2
DIAGNOSTIC INFORMATION AND PROCEDURES
DIAGNOSTIC STARTING POINT - GARAGE DOOR OPENER
Begin the system diagnosis by reviewing the system Description and Operation. Reviewing the Description and
Operation information will help you determine the correct symptom diagnostic procedure to use when a
malfunction exists. Reviewing the Description and Operation information will also help you determine if the
condition described by the customer is normal operation. Refer to Symptoms - Garage Door Opener in order
to identify the correct procedure for diagnosing the system and where the procedure is located.
SYMPTOMS - GARAGE DOOR OPENER
Visual/Physical Inspection
z
Inspect for aftermarket devices which could affect the operation of the garage door opener. Refer to
Checking Aftermarket Accessories in Wiring Systems.
z
Inspect the easily accessible or visible system components for obvious damage or conditions which could
cause the symptom.
Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for
Connector Part Information
z
12162335
z
3-Way F Molex Edge Card (NA)
Pin
Wire Color
Circuit No.
Function
1
OG
4540
Battery Positive Voltage
2
BN/WH
230
Instrument Panel Lamps Dimming Control
3
BK
1050
Ground
IMPORTANT: Review the system description and operation in order to familiarize yourself
with the system functions. Refer to Garage Door Opener Description and
Operation .
2004 Hummer H2
2004 ACCESSORIES & EQUIPMENT Garage Door Opener - Hummer H2
Intermittent Conditions and Poor Connections in Wiring Systems.
Symptom List
Refer to Garage Door Opener Inoperative in order to diagnose the symptom.
GARAGE DOOR OPENER INOPERATIVE
Garage Door Opener Inoperative
Step
Action
Yes
No
1
Did you review the Garage Door Opener Description and
Operation and perform the necessary inspections?
Go to
Step 2
Go to Garage Door
Opener Description and
Operation
2
Operate each button on the garage door opener one at a
time.Do all 3 buttons illuminate the LED?
IMPORTANT:
If the vehicle is equipped with a valet switch, verify that the
switch is in the OFF position.
Go to
Step 4
Go to Step 3
3
Do any buttons illuminate the LED?
Go to
Step 9
Go to Step 5
4
1. Place the J 41540 HomeLink Tester, adjacent to the
GDO as indicated. See Special Tools and Equipment .
2. Operate each button on the garage door opener.
Does the J 41540 verify each button when pressed? See
Special Tools and Equipment .
Go to
Step 9
Go to Step 8
5
Test the Switched Ignition Voltage circuit for an open, high
resistance or a short to ground. Refer to Circuit Testing and
Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to
Step 11
Go to Step 6
6
Test the Inadvertent Power Supply circuit for an open, high
resistance or short to ground. Refer to Circuit Testing and
Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to
Step 11
Go to Step 7
7
Test the ground circuit for an open or high resistance. Refer to
Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to
Step 11
Go to Step 8
8
Inspect for poor connection at the harness connector. Refer to
Testing for Intermittent Conditions and Poor Connections
and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to
Step 11
Go to Step 9
9
Replace the garage door opener.
Did you complete the replacement?
Go to
Step 10
or
Program the garage door opener. Refer to Garage Door
2004 Hummer H2
2004 ACCESSORIES & EQUIPMENT Garage Door Opener - Hummer H2
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