Hummer H2. Manual — part 176

2

2. Unlock the doors using the power

door lock switch or the keyless
entry transmitter.

3. Remove the keys from the ignition.

4. Open the driver's door.

5. Observe the courtesy lamps.

Do the courtesy lamps illuminate?or

Go to Step 3

Go to Courtesy Lamps

Inoperative in Lighting

Systems

3

1. Open the driver's window.

2. Unlock the doors using the power

door lock switch or the keyless
entry transmitter.

3. Remove the keys from the ignition.

4. Open the driver's door.

5. Observe the SECURITY telltale.

Does the SECURITY telltale flash?or

Go to Step 4

Go to Security Indicator

Inoperative

4

1. Lock the vehicle using the power

door lock switches or the keyless
entry transmitter.

2. Observe the SECURITY telltale.

Does the SECURITY telltale change
from flashing to on steady?

Go to Step 5

Go to Power Door Locks

Inoperative (Front Door(s))

or Power Door Locks

Inoperative (Rear Door(s))

in Doors

5

1. Close all of the doors.

2. Observe the SECURITY telltale.

Does the SECURITY telltale turn off in
about 15 seconds?

IMPORTANT:

Ensure that all the doors are
closed. The content theft
deterrent system will not arm
itself without all of the doors
being closed.

Go to Step 6

Go to Courtesy Lamps

Always On in Lighting

Systems

6

1. Reach in and manually unlock the

driver's door.

2. Open the driver's door.

Do all of the alarm mode functions

2004 Hummer H2

2004 ACCESSORIES & EQUIPMENT Theft Deterrent - Hummer H2

CONTENT THEFT DETERRENT (CTD) DOES NOT DISARM WITH KEY LOCK

Content Theft Deterrent (CTD) Does Not Disarm with Key Lock

activate, parking lights flash and horn
pulses?

Go to Step 7

Go to Step 8

7

Disarm the CTD system by inserting the
door key into the driver or the passenger
door lock cylinder and rotate the key to
the unlock position.
Do all of the alarm mode functions stop?

Go to Testing for

Intermittent Conditions

and Poor Connections

in Wiring Systems

Go to Content Theft

Deterrent (CTD) Does Not

Disarm with Key Lock

8

Do any of the alarm functions activate?

Go to Step 9

Go to Courtesy Lamps

Inoperative in Lighting

Systems

9

Do the horns pulse only?

Go to Lights

Inoperative in Content

Theft Deterrent (CTD)

Alarm Mode

Go to Horn Inoperative in

Content Theft Deterrent

(CTD) Alarm Mode

Step

Action

Value(s)

Yes

No

Schematic Reference:Theft Deterrent System Schematics
Connector End View Reference:Theft Deterrent System Connector End Views
DEFINITION: The CTD system does not disarm when the vehicle is unlocked with the key.

1

Did you perform the Theft Deterrent Diagnostic System
Check?

-

Go to

Step 2

Go to Diagnostic

System Check -

Theft Deterrent

2

1. Turn ON the ignition with the engine OFF.

2. With a scan tool, observe the door key switch

parameter in the Body Control Module (BCM)
security data list.

Does the scan tool display INACTIVE?

INACTIVE

Go to

Step 3

Go to Step 11

3

1. Turn OFF the ignition.

2. With a scan tool, observe the door key switch

parameter in the BCM data list.

3. Insert the ignition key into the drivers door lock

cylinder.

4. Turn and hold the door lock cylinder to the

UNLOCK position.

Does the scan tool display ACTIVE?

ACTIVE

Go to

Step 6

Go to Step 4

1. Insert the ignition key into the passenger door

lock cylinder.

2. With a scan tool, observe the door key switch

2004 Hummer H2

2004 ACCESSORIES & EQUIPMENT Theft Deterrent - Hummer H2

4

parameter in the BCM data list.

3. Turn and hold the door lock cylinder to the

UNLOCK position.

Does the scan tool display ACTIVE?

ACTIVE

Go to

Step 9

Go to Step 5

5

1. Connect a 3 amp fused jumper wire between the

signal circuit of the door key switch and ground.

2. With a scan tool, observe the door key switch

parameter in the BCM data list.

Does the scan tool display ACTIVE?

ACTIVE

Go to

Step 8

Go to Step 18

6

1. Insert the ignition key into the passenger door

lock cylinder.

2. With a scan tool, observe the door key switch

parameter in the BCM data list.

3. Turn and hold the door lock cylinder to the

UNLOCK position.

Does the scan tool display ACTIVE?

ACTIVE

System

OK

Go to Step 7

7

1. Disconnect the RH door key switch connector.

2. With a scan tool, observe the Door Key Switch

parameter.

3. Connect a 3 amp fused jumper wire between the

signal circuit of the door key switch and ground.

Does the scan tool display ACTIVE?

ACTIVE

Go to

Step 8

Go to Step 20

8

1. Connect a 3 amp fused jumper wire between the

signal circuit of the door key switch and the
ground circuit at the RH door key switch
connector.

2. With the scan tool, observe the Door Key Switch

parameter.

Does the scan tool display ACTIVE?

ACTIVE

Go to

Step 19

Go to Step 21

9

1. Disconnect the LH door key switch connector.

2. With a scan tool, observe the Door Key Switch

parameter.

3. Connect a 3 amp fused jumper wire between the

signal circuit of the door key switch and ground.

Does the scan tool display the specified ACTIVE?

ACTIVE

Go to

Step 10

Go to Step 15

1. Connect a 3 amp fused jumper wire between the

2004 Hummer H2

2004 ACCESSORIES & EQUIPMENT Theft Deterrent - Hummer H2

10

signal circuit of the door key switch and the
ground circuit at the LH door key switch
connector.

2. With the scan tool, observe the Door Key Switch

parameter.

Does the scan tool display ACTIVE?

ACTIVE

Go to

Step 17

Go to Step 16

11

1. With a scan tool observe the Door Key Switch

parameter.

2. Disconnect the BCM connector containing the

circuits to the door key switch.

Does the scan tool display INACTIVE?

INACTIVE

Go to

Step 12

Go to Step 22

12

1. Reconnect the BCM connector.

2. Disconnect the LH door key switch connector.

3. With a scan tool observe the Door Key Switch

parameter.

Does the scan tool display INACTIVE?

INACTIVE

Go to

Step 17

Go to Step 13

13

1. Disconnect the RH door key switch connector.

2. With a scan tool observe the Door Key Switch

parameter.

Does the scan tool display INACTIVE?

INACTIVE

Go to

Step 19

Go to Step 14

14

Repair the short to ground in the signal circuit of the
door key switch between the BCM and either door
latch.
Did you complete the repair?

-

Go to

Step 23

-

15

Repair the open in the signal circuit of the door key
switch between the LH door latch and C200.
Did you complete the repair?

-

Go to

Step 23

-

16

Repair the open in the ground circuit of the door key
switch between the LH door key switch connector and
G203.
Did you complete the repair?

-

Go to

Step 23

-

17

Replace the LH door latch. Refer to Latch
Replacement - Front Door in Doors.
Did you complete the replacement?

-

Go to

Step 23

-

18

Repair the open in the signal circuit of the door key
switch between the BCM and C200.
Did you complete the repair?

-

Go to

Step 23

Go to Step 22

19

Replace the RH door latch. Refer to Latch
Replacement - Front Door in Doors.

-

Go to

-

2004 Hummer H2

2004 ACCESSORIES & EQUIPMENT Theft Deterrent - Hummer H2