Hummer H3. Manual — part 1288

Mode Actuator

Pin

Wire Color

Circuit No.

Function

A

YE

1791

Low Reference

B

L-GN/BK

2276

Mode Door Position Signal

C

GY

6137

Evaporative Temperature Sensor
Signal

D

D-BU

1646

Right Air Temperature Door Position
Signal

E

L-BU

733

Left Air Temperature Door Position
Signal

F

L-BU/BK

1688

5V

G

D-GN

1614

Recirculation Door Control A

H

TN/BK

2274

Recirculation Door Control B

J

L-GN

2275

Mode Door Control B

K

TN

2273

Mode/Right Air Temperature Door
Control B

L

L-GN/BK

1647

Air Temperature Door A

M

D-BU

1199

Left Air Temperature Door Control B

2007 Hummer H3

2007 HVAC HVAC - Manual - H3

Fig. 19: Mode Actuator Connector End Views
Courtesy of GENERAL MOTORS CORP.

Mode Actuator Connector Parts Information

Mode Actuator Connector Terminal Identification

Connector Part Information

OEM: 12064982

Service: 12102633

Description: 5-Way F Micro-Pack 100 Series (BK)

Terminal Part Information

Terminal/Tray: 12146447/3

Core/Insulation Crimp: E/C

Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)

Pin

Wire Color

Circuit No.

Function

YE

1791

Low Reference (LHD)

2007 Hummer H3

2007 HVAC HVAC - Manual - H3

Recirculation Actuator

Fig. 20: Recirculation Actuator Connector End Views
Courtesy of GENERAL MOTORS CORP.

Recirculation Connector Parts Information

1

L-BU/BK

1688

5V (RHD)

2

L-GN/BK

2276

Mode Door Position Signal

3

L-BU/BK

1688

5V (LHD)

YE

1791

Low Reference (RHD)

4

TN

2273

Mode/Right Air Temperature Door
Control B (LHD)

L-GN

2275

Mode Door Control B (RHD)

5

L-GN

2275

Mode Door Control B (LHD)

TN

2273

Mode/Right Air Temperature Door
Control B (RHD)

Connector Part Information

2007 Hummer H3

2007 HVAC HVAC - Manual - H3

Recirculation Actuator Connector Terminal Identification

DIAGNOSTIC INFORMATION AND PROCEDURES

DIAGNOSTIC CODE INDEX

DIAGNOSTIC CODE INDEX

SCAN TOOL OUTPUT CONTROLS

Scan Tool Output Controls

OEM: 12064982

Service: 12102633

Description: 5-Way F Micro-Pack 100 Series (BK)

Terminal Part Information

Terminal/Tray: 12146447/3

Core/Insulation Crimp: E/C

Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)

Pin

Wire Color

Circuit No.

Function

1-3

-

-

Not Used

4

L-BU

1614

Recirculation Door Control A (LHD)

TN-BK

2274

Recirculation Door Control B (RHD)

5

L-GN

2274

Recirculation Door Control B (LHD)

D-GN

1614

Recirculation Door Control A (RHD)

DTC

Description

DTC P0532 or P0533

** MULTIPLE VALUES **

DTC B3787 or B3788

**DESCRIPTION NOT COLLECTED **

Scan Tool

Output Control

Additional Menu

Selection(s)

Description

HVAC Fan Auto
On

Outputs

When On is selected with the scan tool, the body
control module (BCM) supplies a ground for coil of
the ignition 3 relay (IGN 3) in the underhood
bussed electrical center (UBEC), which supplies
battery power to the blower motor and the HVAC
control assembly. The blower motor switch must be

2007 Hummer H3

2007 HVAC HVAC - Manual - H3