GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1999 🢒 Tahoe 4WD - RHD 🢒 Body and Accessories 🢒 Data Link Communications 🢒 HVAC Connector End Views

Blower Motor Relay, High


Object Number: 39685 Size: CH

Connector Part Information
    • 12110539
    • 5F M/P 280 (BLK)

Pin

Wire Color

Circuit No.

Function

30

PPL

65

Blower Motor Feed

85

BLK

150

Ground

86

ORN

52

Blower Switch Output-High

87

RED

542

Fuse Output-Battery-Type II Fuse

87A

DK BLU

101

Blower Resistor Output

Blower Motor Resistor


Object Number: 39662 Size: CH

Connector Part Information
    • 12048412
    • 4F M/P 480 (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

72

Blower Switch Ouput-Medium 2

B

YEL

60

Blower Switch Output-Low

C

DK BLU

101

Blower Resistor Output

D

TAN

63

Blower Switch Output-Medium 1

HVAC Control Module, C1


Object Number: 38596 Size: CH

Connector Part Information
    • 12020557
    • 3F M/P 480 (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN

66

Air Conditioning Switch Output

B

YEL

60

Blower Switch Output-Low

C

BRN

141

Fuse Output-Ignition 3-Type III Fuse

HVAC Control Module, C2


Object Number: 320619 Size: CH

Connector Part Information
    • 12004067
    • 4F PAC / ON 1 HD (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN

63

Blower Switch Output-Medium 1

B

ORN

52

Blower Switch Output-High

C

LT BLU

72

Blower Switch Output-Medium 2

D

YEL

60

Blower Switch Output-Low

HVAC Control Module, C3


Object Number: 38598 Size: CH

Connector Part Information
    • 12034146
    • 3F M/P 280 SLD (BLK)

Pin

Wire Color

Circuit No.

Function

A

BRN

141

Fuse Output-Ignition 3-Type III Fuse

B

LT BLU

733

Air Temperature Valve Position Sensor Signal

C

BLK

150

Ground