Hummer H3. Manual — part 1058

Passenger Door Lock and Window Switch Connector Terminal Identification

DIAGNOSTIC INFORMATION AND PROCEDURES

DIAGNOSTIC CODE INDEX

DIAGNOSTIC CODE INDEX

DIAGNOSTIC STARTING POINT - VEHICLE ACCESS

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

Core/Insulation Crimp: 4/A

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

Pin

Wire Color

Circuit No.

Function

1-2

-

-

Not Used

3

D-BU

245

Passenger Door Lock Switch Unlock
Control

4

L-BU

244

Passenger Door Lock Switch Lock
Control

5

BK

1550

Ground

6

BN

9

Park Lamp Supply Voltage

7

D-BU

1307

Power Window Master Switch
Lockout Signal

8

TN

167

Power Window Master Switch Right
Front Down Signal

9

L-BU

166

Power Window Master Switch Right
Front Up Signal

10

BN

667

Power Window Motor Right Front
Down Control

11

YE

443

Accessory Voltage

12

D-BU

666

Power Window Motor Right Front Up
Control

DTC

Description

DTC B3142 or B3143

Unlock Switch Circuit

DTC B3152 or B3153

Lock Switch Circuit

2007 Hummer H3

2007 ACCESSORIES & EQUIPMENT Vehicle Access - H3

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

All Door Unlock Relay

The scan tool displays On/Off. The door unlock relay output from the body control module
(BCM), where the relay actuating to the unlock position is displayed as On.

Battery Voltage Signal

The scan tool displays 9.0-15.0 volts. The state of the battery voltage supplied to the BCM.

Calibration ID

The scan tool displays the calibration ID number of the BCM.

Door Lock Relay

The scan tool displays On/Off. The door lock relay output from the BCM, where the relay
actuating to the lock position is displayed as On.

Door Lock Relay Fdbk.

The scan tool displays Active/Inactive. The door lock relay feedback input to the BCM,
where the relay being actuated is displayed as Active.

Driver Door Ajar Sw.

The scan tool displays Door Closed/Door Ajar. The driver door ajar switch input to the
BCM, where a closed switch is displayed as Door Ajar.

End Model Part Number

The scan tool displays the end model part number of the BCM.

2007 Hummer H3

2007 ACCESSORIES & EQUIPMENT Vehicle Access - H3

Julian Date of Build

The scan tool displays the date the BCM was built.

Passenger Door Ajar Sw.

The scan tool displays Door Closed/Door Ajar. The passenger door ajar switch input to the
BCM, where a closed switch is displayed as Door Ajar.

Software Part Number

The scan tool displays the BCMs software revision part number.

Year Module Build

The scan tool displays the year the BCM was built.

SCAN TOOL DATA LIST

Body Control Module Scan Tool Data List

SCAN TOOL OUTPUT CONTROLS

Scan Tool Parameter

Data List

Units Displayed

Typical Data

Value

Operating Conditions: Key ON, Engine OFF.

All Door Unlock Relay

Outputs

On/Off

Off

Battery Voltage Signal

Data

Volts

12.8 Volts

Calibration ID

ID Information

Numerical

XXXX

Door Lock Relay

Outputs

On/Off

Off

Door Lock Relay Fdbk.

Inputs

Active/Inactive

Inactive

Driver Door Ajar Sw.

Inputs

Door Closed/Door

Ajar

Door Closed

End Model Part Number

ID Information

Numerical

XXXX

Julian Date of Build

ID Information

Numerical

XXX

Passenger Door Ajar Sw.

Inputs

Door Closed/Door

Ajar

Door Closed

Software Part Number

ID Information

Numerical

XXXX

Year Module Built

ID Information

Numerical

XXXX

2007 Hummer H3

2007 ACCESSORIES & EQUIPMENT Vehicle Access - H3

Body Control Module

DTC B3142 OR B3143

Circuit Description

The body control module (BCM) provides an output to the driver switch assembly through the
door unlock control circuit for controlling automatic door unlock, anti-lockout and keyless entry
unlock functions.

DTC Descriptors

This diagnostic procedure supports the following DTCs:

DTC B3142 Unlock Switch Circuit Low

DTC B3143 Unlock Switch Circuit High

Conditions for Setting the DTC

The BCM detects a short to ground on the door unlock control circuit for greater than 60
seconds.

The BCM detects a short to battery on the door unlock control circuit for greater than 1
second.

Action Taken When the DTC Sets

The BCM stores DTC B3142 or B3143 in memory.

The BCM will disable the output and all operations of the output until the fault no longer
exists.

Conditions for Clearing the DTC

The BCM no longer detects the short to ground on the door unlock control circuit for

Scan Tool

Output Control

Additional Menu

Selection(s)

Description

Door Lock

Door Lock Test

The body control module (BCM) actuates all of the
door lock actuators for approximately 5 seconds
when you select On. All of the doors should lock.

Unlock Doors

Door Lock Test

The BCM actuates all of the door lock actuators for
approximately 5 seconds when you select On. All of
the doors should unlock.

2007 Hummer H3

2007 ACCESSORIES & EQUIPMENT Vehicle Access - H3