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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