Hummer H2. Manual — part 510
DOWN position.
Does the test lamp illuminate?
Go to Step 15
Go to Step 22
15
1. Connect a test lamp between the power
window motor up and down control circuits.
2. Activate the power window switch to the UP
and DOWN positions.
Does the test lamp illuminate in both positions?
Go to Step 26
Go to Step 25
16
1. Disconnect the appropriate rear power
window switch.
2. With a test lamp connected to battery positive
voltage, probe the power window up signal
circuit at the rear window switch harness
connector.
3. Activate the appropriate rear window switch
on the master switch to the UP position.
Does the test lamp illuminate?
Go to Step 17
Go to Step 19
17
1. With a test lamp connected to battery positive
voltage, probe the power window down
signal circuit at the rear window switch
harness connector.
2. Activate the appropriate rear window switch
on the master switch to the DOWN position.
Does the test lamp illuminate?
Go to Step 25
Go to Step 20
18
Test for an open in the window lockout signal
circuit. Refer to Circuit Testing and Wiring
Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 33
Go to Step 23
19
Test for an open or short to ground in the power
window up or down signal circuit. Refer to Circuit
Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 33
Go to Step 23
20
Test for an open or short to ground in the power
window up or down signal circuit. Refer to Circuit
Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 33
Go to Step 23
21
Test for an open or short to ground in the power
window motor up control circuit. Refer to Circuit
Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 33
Go to Step 25
Test for an open or short to ground in the power
2004 Hummer H2
2004 ACCESSORIES & EQUIPMENT Doors - Hummer H2
22
window motor down control circuit. Refer to
Circuit Testing and Wiring Repairs in Wiring
Systems.
Did you find and correct the condition?
Go to Step 33
Go to Step 25
23
Inspect for poor connections at the body control
module (BCM). 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 33
Go to Step 29
24
Inspect for poor connections at the driver door
module. 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 33
Go to Step 30
25
Inspect for poor connections at the passenger rear
power window switch. 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 33
Go to Step 31
26
Inspect for poor connections at the passenger rear
power window motor. 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 33
Go to Step 32
27
Repair the open or short to ground in the battery
positive voltage circuit. Refer to Circuit Testing
and Wiring Repairs in Wiring Systems.
Did you complete the repair?
Go to Step 33
-
28
Repair the open in the rear power window switch
ground circuit. Refer to Circuit Testing and
Wiring Repairs in Wiring Systems.
Did you complete the repair?
Go to Step 33
-
29
Replace the BCM. Refer to Body Control Module
Replacement in Body Control System.Did you
complete the repair?
IMPORTANT:
Perform the set up procedure for the BCM. Refer
to Body Control Module (BCM)
Programming/RPO Configuration in Body Control
System.
Go to Step 33
-
30
IMPORTANT:
Perform the set up procedure for the driver door
module. Refer to Service Programming System
(SPS) in Programming.
2004 Hummer H2
2004 ACCESSORIES & EQUIPMENT Doors - Hummer H2
DOOR AJAR INDICATOR MALFUNCTION
Door Ajar Indicator Malfunction
POWER DOOR LOCKS INOPERATIVE (FRONT DOOR(S))
Power Door Locks Inoperative (Front Door(s))
Replace the driver door module. Refer to Switch
Replacement - Door Lock and Side Window -
Driver .Did you complete the repair?
Go to Step 33
-
31
Replace the passenger rear power window switch.
Refer to Power Window Switch Replacement -
Rear Door .
Did you complete the repair?
Go to Step 33
-
32
Replace the passenger rear power window motor.
Refer to Window Regulator Motor Replacement -
Rear Door .
Did you complete the repair?
Go to Step 33
-
33
Operate the system in order to verify the repair.
Did you correct the condition?
System OK
Go to Step 2
Step
Action
Yes
No
Schematic Reference: Door Lock/Indicator Schematics
Connector End View Reference:Power Door Systems Connector End Views
1
Did you perform the Door Systems Diagnostic
System Check?
Go to Step 2
Go to Diagnostic
System Check -
Door Systems
2
Open and close the driver and passenger doors
one at a time while monitoring the DIC display.
Do the door ajar indicators operate properly?
Go to Testing for
Intermittent Conditions
and Poor Connections in
Wiring Systems
Go to Step 3
3
Do the courtesy lamps operate properly with
the opening and closing of each of the doors?
Go to Step 4
Go to Courtesy
Lamps Inoperative
in Lighting Systems
4
Replace the instrument panel cluster. Refer to
Instrument Panel Cluster (IPC)
Replacement in Instrument Panel, Gauges and
Console.Did you complete the replacement?
IMPORTANT:
Perform the setup procedure for the
instrument panel cluster.
Go to Step 5
-
5
Operate the system in order to verify the repair.
Did you correct the condition?
System OK
Go to Step 3
Step
Action
Yes
No
2004 Hummer H2
2004 ACCESSORIES & EQUIPMENT Doors - Hummer H2
Schematic Reference: Door Lock/Indicator Schematics
Connector End View Reference: Power Door Systems Connector End Views
1
Did you perform the Door Systems Diagnostic
System Check?
Go to Step 2
Go to Diagnostic
System Check -
Door Systems
2
Activate the door lock switches to the lock and
unlock positions.
Do the driver and front passenger doors lock and
unlock?
Go to Testing for
Intermittent Conditions
and Poor Connections in
Wiring Systems
Go to Step 3
3
Do the door lock switches lock and unlock at least
one of the front door lock actuators?
Go to Step 4
Go to Step 9
4
1. Disconnect the inoperative door lock actuator.
2. With a test lamp connected to a good ground,
probe the door lock actuator lock circuit at the
door lock actuator harness connector.
3. Activate a door lock switch to lock position.
Does the test lamp illuminate?
Go to Step 5
Go to Step 7
5
1. With a test lamp connected to a good ground,
probe the door lock actuator unlock circuit at
the door lock actuator harness connector.
2. Activate a door lock switch to unlock position.
Does the test lamp illuminate?
Go to Step 6
Go to Step 8
6
1. Connect a test lamp between the door lock
actuator lock and unlock circuits at the door
lock actuator harness connector.
2. Activate a door lock switch to both the lock
and unlock positions.
Does the test lamp illuminate in both positions?
Go to Step 10
Go to Step 9
7
Test for an open or short to ground in the door lock
actuator lock circuit. Refer to Circuit Testing and
Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 13
Go to Step 9
8
Test for an open or short to ground in the door lock
actuator unlock circuit. Refer to Circuit Testing and
Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 13
Go to Step 9
9
Inspect for poor connections at the harness
connector of the appropriate door module. Refer to
Testing for Intermittent Conditions and Poor
Connections and Connector Repairs in Wiring
Systems.
2004 Hummer H2
2004 ACCESSORIES & EQUIPMENT Doors - Hummer H2
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