Hummer H2. Manual — part 260
Fig. 45: World Magnetic Variation Map
Courtesy of GENERAL MOTORS CORP.
1. Locate your current geographic location on the World Magnetic Variation Map.
2. Turn ON the ignition, with the engine OFF.
3. Press and hold the switch for the compass, which may be depicted as COMP, COMPASS, or on/off
(w/UE1) depending on the type of mirror on the vehicle, until a zone number appears on the compass
display.
4. Depress the switch for the compass to select the desired zone number.
5. Wait 5 seconds. The display will return to a compass heading. The variance procedure is now complete.
6. Calibrate the compass. Refer to Compass Calibration mentioned above.
REAR WINDOW DEFOGGER DESCRIPTION AND OPERATION
Rear Window Defogger System Components
The rear window defogger system consist of the following components:
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HVAC control module
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Body control module (BCM)
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DEFOG relay
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Rear window defogger grid
Rear Window Defogger Operation
2004 Hummer H2
2004 ACCESSORIES & EQUIPMENT Stationary Windows - Hummer H2
Battery positive voltage is supplied through the RR DEFOG fuse, in the underhood fuseblock, to the DEFOG
relay switched input. When you turn ON the ignition, ignition voltage is supplied through the SEO IGN fuse, in
the underhood fuseblock, to the DEFOG relay coil. When you depress the rear window defogger switch. The
HVAC control module illuminates the rear window defogger indicator and sends a class 2 message to the BCM
to enable the rear window defogger system. The BCM energizes the DEFOG relay by grounding the control
circuit of the relay. This allows battery positive voltage from the relay switched input through the switch
contacts and out the relay switched output to the rear window defogger grid. Ground for the rear window
defogger grid is provided by G301.
When you turn ON the ignition and press the rear window defogger switch, the defogger cycle lasts 10 minutes.
Further operation results in additional 10 minute defogger cycles.
STATIONARY WINDOW DESCRIPTION
Most stationary windows, specifically windshields, are retained to the body with urethane adhesive which
adheres the window to the body, increasing structural integrity. The reinstallation of the windows with urethane
adhesive requires complete replacement of the urethane adhesive bead, and is know as the Full Cut Method.
FULL-CUT METHOD DESCRIPTION
Use only the full cut method also know as in the field as Full Strip Method when installing windows.
This method includes the following:
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The replacement of a majority of the urethane adhesive bead remove all but approximately 2 mm (3/64
in) of the existing bead of urethane adhesive from the pinch-weld flange.
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Applying pinch-weld primer to any exposed painted areas on the pinch-weld flange.
No mounds or loose pieces of urethane adhesive should remain on the pinch-weld flange. Do not remove all
traces of urethane adhesive.
IMPORTANT:
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If corrosion of the pinch-weld flange is present, or if sheet metal repairs or
replacements are required, refinish the pinch-weld flange in order to
present a clean, primer-only surface.
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If paint repairs are required, mask the flange bonding area, prior to
applying the color coat, in order to provide a clean, primer-only surface.
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Appropriate materials for these primer applications are typically 2
component catalyzed products. Use materials such as BASF DE15(R),
DuPont 2610(R), Sherwin-Williams PSE 4600 and NP70(R) and Martin-
Semour 5120,5130(R), PPG DP90LF SPIES/ HECKER 3688/8590 -
3688/5150 - 4070/5090 STANDOX 11158/13320 - 14653/14980 products are
approved for this application. Follow the manufacturer's directions for the
mix, the application, and the drying times.
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After repairing the opening as indicated, shake the pinch-weld primer
black #3 well. Using a new dauber, apply the primer to the primed surface
2004 Hummer H2
2004 ACCESSORIES & EQUIPMENT Stationary Windows - Hummer H2
SPECIAL TOOLS AND EQUIPMENT
SPECIAL TOOLS
Special Tools
of the flange in the bonding area. Allow the primer to dry for 10 minutes.
Illustration
Tool Number/Description
J 24402-A
Glass Sealant Cold Knife Remover
J 34946
Window Pin Remover
J 39032
Stationary Glass Removal Tool
J 39040
Quarter Window Remover
2004 Hummer H2
2004 ACCESSORIES & EQUIPMENT Stationary Windows - Hummer H2
2004 ACCESSORIES & EQUIPMENT
Vehicle DTC Information - Hummer H2
DIAGNOSTIC INFORMATION AND PROCEDURES
DIAGNOSTIC TROUBLE CODE (DTC) LIST - VEHICLE
Diagnostic Trouble Code (DTC) List - Vehicle
DTC
Descriptor
DTC B0001
Vehicle Speed Information Circuit Range/Performance
DTC B0016, B0017, or B0018
Right Front/Passenger Frontal Deployment Loop (Stage 1)
Circuit
DTC B0022, B0024, or B0026
Left Front/Driver Frontal Deployment Loop (Stage 1) Circuit
DTC B0051
Deployment Commanded
DTC B0053
Deployment Commanded with Loop Malfunctions Present
DTC B0090
Active Switch Voltage Out of Range
DTC B0091
Active Switch Wrong State
DTC B0100, B0101, B0102, B0103,
B0104, or B0105
Electronic Frontal Sensor Circuit
DTC B0159
Outside Air Temperature Sensor Circuit Range/Performance
DTC B0164
Passenger Compartment Temperature Sensor #1 (Single
Sensor or LH) Circuit Range/Performance
DTC B0174, B0179, B0510, or B0515
Discharge Air Temperature Sensor Circuit
DTC B0183 or B0188
Sunload Sensor Circuit
DTC B0229, B0414, B0424, or B3770
HVAC Door Actuator Range/Performance
DTC B0263, B0268, B0408, or B0418
HVAC Door Actuator Circuit
DTC B0283
Electric Rear Defrost Circuit
DTC B0540
Speedometer Circuit
DTC B0560
Tachometer Circuit Range/Performance
DTC B0790
Transfer Case Neutral Indicator Circuit
DTC B1000
ECU Malfunction
DTC B1001
Option Configuration Error
DTC B1004
Keep Alive Memory (KAM) Reset
DTC B1007
EEPROM Write Error
DTC B1009
EEPROM Checksum Mismatch
DTC B1023
Integral Switch Performance
DTC B1025, B1035, B1045, or B1055
Audio [+] Output Circuit
DTC B1235
Amplifier On Signal Circuit
DTC B1271
Theft Locked
DTC B1372
Device Ignition 1 (ON and START) Circuit Low
DTC B1375
Device Ignition 3 (ON) Circuit
2004 Hummer H2
2004 ACCESSORIES & EQUIPMENT Vehicle DTC Information - Hummer H2
2004 Hummer H2
2004 ACCESSORIES & EQUIPMENT Vehicle DTC Information - Hummer H2
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