Hummer H3. Manual — part 1705

Fig. 22: Window Switch Connector End Views
Courtesy of GENERAL MOTORS CORP.

Right Rear Window Switch Connector Parts Information

Connector Part Information

OEM: 6240-5068

Service: 88987940

Description: 8-Way F 090 TS Series (BU)

Terminal Part Information

Pins: 1-2, 4-5

Terminal/Tray: 8240-4882/22

Core/Insulation Crimp: E/C

Release Tool/Test Probe: 15315247/J-35616-18 (BK)

Pins: 3, 6-8

Terminal/Tray: 8240-4942/22

2007 Hummer H3

2007 ACCESSORIES & EQUIPMENT Fixed and Moveable Windows - H3

Right Rear Window Switch Connector Terminal Identification

DIAGNOSTIC INFORMATION AND PROCEDURES

DIAGNOSTIC STARTING POINT - FIXED AND MOVEABLE WINDOWS

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

The identification of the control modules which command the system

The ability of the control modules to communicate through the serial data circuit

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.

SCAN TOOL DATA DEFINITIONS

Accy. Relay Command

The scan tool displays On/Off. The body control module will indicate if it is commanding

Core/Insulation Crimp: 2/1

Release Tool/Test Probe: 15315247/J-35616-18 (BK)

Pin

Wire Color

Circuit No.

Function

1

D-GN

168

Power Window Master Switch Right
Rear Up Signal

2

BN

9

Park Lamp Supply Voltage

3

BK

1450

Ground

4

PU

169

Power Window Master Switch Right
Rear Down Signal

5

D-BU

1307

Power Window Master Switch
Lockout Signal

6

YE

443

Accessory Voltage

7

BN

671

Power Window Motor Right Rear
Down Control

8

D-BU

670

Power Window Motor Right Rear Up
Control

2007 Hummer H3

2007 ACCESSORIES & EQUIPMENT Fixed and Moveable Windows - H3

the RAP/ACCY relay On or Off.

Rear Defog Relay Cmd.

The scan tool displays On/Off. The body control module will indicate if it is commanding
the rear defog relay On or Off.

Rear Defog Switch

The scan tool displays Active/Inactive. The BCM receives an input from the HVAC control
head indicating Active when the rear defog system is turned On.

SCAN TOOL DATA LIST

Body Control Module

SCAN TOOL OUTPUT CONTROLS

Body Control Module (BCM)

DTC B0285 OR B0286

Circuit Description

The body control module (BCM) monitors the rear defogger switch input. When the rear

Scan Tool

Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition in RUN, Engine OFF, All Doors Closed, Park Brake

Applied (DRLs OFF)

Accy. Relay

Cmd.

Outputs

On/Off

Off

Rear Defog

Switch

Inputs

Active/Inactive

Inactive

Rear Defog

Relay Cmd.

Outputs

On/Off

Off

Scan Tool

Output Control

Additional Menu

Selections

Description

Body Control
Module

Rear Defogger
Relay

The body control module (BCM) actuates the Rear
Defogger relay when ON is selected. The rear
window defogger grid should become warm.

2007 Hummer H3

2007 ACCESSORIES & EQUIPMENT Fixed and Moveable Windows - H3

defogger is turned ON, the rear defog switch is closed and the BCM supplies the battery positive
voltage to the coil side of the rear defog relay. This will energize the relay activating the rear
defogger.

The first time that the rear defogger is activated in an ignition cycle, the rear defogger will remain
ON for 10 minutes or until the ignition switch is turned OFF. If the rear defogger is activated
again during the same ignition cycle, the rear defogger will remain ON for 5 minutes or until the
ignition switch is turned OFF.

DTC Descriptors

This diagnostic procedure supports the following DTCs:

DTC B0285 Electronic Rear Defrost Circuit Low

DTC B0286 Electronic Rear Defrost Circuit High

Conditions for Running the DTC

The ignition is in RUN.

Conditions for Setting the DTC

The BCM detects an open, short to ground or short to voltage in the rear defog relay control
circuit.

The condition exists for 30 seconds.

The BCM is not requesting the Rear Defogger System.

Action Taken When the DTC Sets

The rear window defogger will be inoperative if the circuit is open or shorted to ground.

The rear window defogger will be ON if the circuit is shorted to voltage.

The rear defogger indicator may not illuminate when the rear defogger switch is activated or
may always be illuminated.

Conditions for Clearing the DTC

This DTC will change from current to history when the fault is no longer present.

A history DTC will clear after 100 consecutive ignition cycles if the condition for the
malfunction is no longer present.

Test Description

2007 Hummer H3

2007 ACCESSORIES & EQUIPMENT Fixed and Moveable Windows - H3