Hummer H2. Manual — part 609

POWER ROOF SYSTEMS CONNECTOR END VIEWS

Sunroof Terminal Identification Module

Sunroof Terminal Identification Relay

1

S302

2

S305

3

S301

4

Headliner Harness

5

Sunroof Relay

Connector Part Information

z

15336184

z

10-Way F AMP (WH)

Pin

Wire Color

Circuit No.

Function

1-4

-

-

Not Used

5

TN

755

Sunroof Relay Switched Output

6

-

-

Not Used

7

BK

1050

Ground

8

-

-

Not Used

9

BN

100

Sunroof Switch Open Signal

10

OG

110

Sunroof Switch Close Signal

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Sunroof Terminal Identification Switch

Connector Part Information

z

12110541

z

6-Way F Metri-Pack 280 Series Flexlock (BK)

Pin

Wire Color

Circuit No.

Function

A1

BK

1050

Ground

A2

TN

755

RAP Relay Switched Output

TN

755

RAP Relay Switched Output

B1-B2

-

-

Not Used

C1

OG

3840

Battery Positive Voltage

C2

D-BU

1353

RAP Supply Voltage

Connector Part Information

z

12064998

z

8-Way F Metri-Pack 280 Series (BK)

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DIAGNOSTIC INFORMATION AND PROCEDURES

DIAGNOSTIC STARTING POINT - ROOF

Begin the system diagnosis with the Diagnostic System Check - Power Sunroof . The Diagnostic System
Check will provide the following information:

z

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

z

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

z

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 - POWER SUNROOF

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.

3: This step tests for valid system power moding in all ignition switch positions.

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.

Diagnostic System Check - Power Sunroof

Pin

Wire Color

Circuit No.

Function

A

OG

110

Sunroof Switch Close Signal

B

BN/WH

230

Instrument Panel Lamps Dimming Control

C

BK

1050

Ground

D

-

-

Not Used

E

BN

100

Sunroof Switch Open Signal

F

TN

755

RAP Relay Switched Output

G-H

-

-

Not Used

Step

Action

Yes

No

1

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.

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SYMPTOMS - ROOF

1. Perform Diagnostic Starting Point - Roof in order to verify that all of the following are true:

2

2. Attempt to establish communication

with the body control module.

Does the scan tool communicate with the
body control module?

Go to Step 3

Go to Scan Tool Does Not

Communicate with Class 2

Device in Data Link

Communications

3

1. Access the Class 2 Power Mode

parameter in the Diagnostic Circuit
Check menu on the scan tool.

2. Rotate the ignition switch through all

positions while observing the Class 2
Power Mode parameter.

Does the Class 2 Power Mode parameter
reading match the ignition switch position
for all switch positions?

IMPORTANT:

Open the driver door and leave it open
during this test. This will disable the
RAP power mode and eliminate this
power mode from the power mode
parameter list.

IMPORTANT:

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

Go to Step 4

Go to Power Mode

Mismatch in Body Control

System

4

Select the body control module display
DTCs function on the scan tool.
Does the scan tool display any DTCs?

Go to Step 5

Go to Symptoms - Roof

5

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

Go to Diagnostic

Trouble Code (DTC)

List in Data Link

Communications

Go to Step 6

6

Does the scan tool display DTC B1000?

Go to Diagnostic

Trouble Code (DTC)

List in Body Control

System

Go to Symptoms - Roof

IMPORTANT: The following must be completed before using the symptom tables.

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