Hummer H2. Manual - part 737

Turn Signal/Multifunction Terminal Identification Switch - C2 

Washer Fluid Level Terminal Identification Sensor 

Connector Part Information

z

15393435  

z

10-Way F Micro-Pack (GY)  

Pin

Wire Color

Circuit No.

Function

A-C

-

-

Not Used

D

BK/WH

1851

Ground

E

BN/WH

230

Instrument Panel Lamps Dimming Control

F

GY

391

Rear Window Wiper Switch Signal

G

YE

343

Accessory Voltage

H

D-GN

392

Rear Window Washer Pump Control

J

WH

393

Rear Window Wiper Motor Wash Signal

K

-

-

Not Used

Connector Part Information

z

15339058  

z

7-Way F Metri-Pack 150 Series (MD GY)  

Pin

Wire Color

Circuit No.

Function

G

-

-

Not Used

H

PK

94

Windshield Washer Switch Signal

J

GY

478

Windshield Washer Switch Supply Voltage

K

D-BU/ 

WH

477

Windshield Wiper Switch High Signal

L-N

-

-

Not Used

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Wipers/Washer Systems - Hummer H2

  

Washer Fluid Pump Terminal Identification - Reversible 

Connector Part Information

z

15336024  

z

2-Way F GT 150 Sealed (BK)  

Pin

Wire Color

Circuit No.

Function

1

BK/WH

174

Low Washer Fluid Indicator Signal

2

BK

150

Ground

Connector Part Information

z

15423480  

z

2-Way F Yazaki Sealed (BK)  

Pin

Wire Color

Circuit No.

Function

1

RD

228

Windshield Washer Pump Control

2

D-BU

227

Rear Window Washer Pump Control

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Wipers/Washer Systems - Hummer H2

  

Windshield Wiper Terminal Identification Motor and Module

DIAGNOSTIC INFORMATION AND PROCEDURES 

DIAGNOSTIC STARTING POINT - WIPER/WASHER SYSTEMS 

Begin the system diagnosis by reviewing the system Description and Operation. Reviewing the Description and 
Operation information will help you determine the correct symptom diagnostic procedure when a malfunction 
exists. Reviewing the Description and Operation information will also help you determine if the condition 
described by the customer is normal operation. Refer to Symptoms - Wiper/Washer Systems in order to 
identify the correct procedure for diagnosing the system and where the procedure is located. 

SCAN TOOL DATA LIST 

Connector Part Information

z

15326939  

z

12-Way F GT 150 SLD (BK)  

Pin

Wire Color

Circuit No.

Function

A

D-GN/WH

266

Washer Fluid Pump Supply Voltage

B

RD

228

Windshield Washer Pump Control

C

D-GN

392

Rear Window Washer Switch Signal

D

D-BU

477

Windshield Wiper Switch High Signal

E

GY

478

Windshield Wiper Switch Supply Voltage

F

YE

143

Accessory Voltage

G

BK

1050

Ground

H

D-BU

227

Rear Window Washer Pump Control

J

OG

2268

Washer Fluid Pump Relay Control

K

PK

94

Windshield Washer Switch Signal

L

D-GN

113

Windshield Wiper Switch Signal 2

M

BK

1050

Ground

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Wipers/Washer Systems - Hummer H2

  

Scan Tool Data List 

SCAN TOOL DATA DEFINITIONS 

Front Wipers Active  

Input from the windshield wiper motor and module indicating the status of wipers/washer system. 

SYMPTOMS - WIPER/WASHER SYSTEMS 

z

Wiper/Washer System Description and Operation  

z

Rear Wiper/Washer System Description and Operation  

Visual/Physical Inspection 

z

Inspect for aftermarket devices which could affect the operation of the Windshield Wiper/Washer 
System. Refer to Checking Aftermarket Accessories in Wiring Systems.  

z

Inspect the easily accessible or visible system components for obvious damage or conditions which could 
cause the symptom.  

z

Inspect the washer fluid reservoir for the proper fluid level.  

Intermittent 

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for 
Intermittent Conditions and Poor Connections in Wiring Systems. 

Symptom List 

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom: 

z

Low Washer Fluid Indicator Malfunction  

z

Washers Always On  

z

Washers Inoperative  

z

Wipers Always On  

z

Wipers Inoperative - All Modes  

z

Wipers Inoperative - One or More Modes  

z

Washer Inoperative - Rear  

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: BCM powered and communicating with the scan tool.

Front Wipers Active

Inputs

On/Off

Off

IMPORTANT: Refer to the system description and operation from the following list in order to 

familiarize yourself with the system functions.

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Wipers/Washer Systems - Hummer H2