GM Service Manual Online
For 1990-2009 cars only
Table 1: A/C Compressor Clutch Relay
Table 2: Blower Motor Relay
Table 3: Blower Motor Resistor Assembly
Table 4: Heater And A/C Control Assembly
Table 5: Heater And A/C Control Assembly

A/C Compressor Clutch Relay


Object Number: 535912  Size: CH

Connector Part Information

    • 12129716
    • 4-Way F Metri-Pack Series 280 FLX LK (MD GRY)

Pin

Wire Color

Circuit No.

Function

30

PNK

439

Fuse Output-Ignition-1

85

DK GRN/ WHT

459

Air Conditioning Control Relay Output-Coil

86

PNK

439

Vehicle Speed Signal

87

DK GRN

59

Air Conditioning Compressor Clutch Feed

Blower Motor Relay


Object Number: 535919  Size: CH

Connector Part Information

    • 12110539
    • 5-Way F Metri-Pack Series 280 FLX LK (BLK)

Pin

Wire Color

Circuit No.

Function

30

PPL

65

Blower Motor Feed

85

BRN

64

High Speed Blower Relay Feed-Coil

86

BLK

150

Ground

87

ORN

840

Fuse Output-Battery

87A

DK BLU

101

Blower Resistor-Output

Blower Motor Resistor Assembly


Object Number: 535917  Size: CH

Connector Part Information

    • 12129692
    • 4-Way F Metri-Pack Series 480 (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

101

Blower Resistor-Output

B

LT BLU

72

Blower Switch Output-Medium 2

C

TAN

63

Blower Switch Output-Medium

D

YEL

60

Blower Switch Output-Low

Heater And A/C Control Assembly


Object Number: 232132  Size: CH

Connector Part Information

    • 12020813
    • 5-Way F Metri-Pack Series 630 (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

60

Blower Switch Output-Low

B

BRN

64

High Speed Blower Relay Feed Coil

C

TAN

63

Blower Switch Output-Medium 1

D

LT BLU

72

Blower Switch Output-Medium 2

E

WHT

119

Mode Switch Output

Heater And A/C Control Assembly


Object Number: 38596  Size: CH

Connector Part Information

    • 12020557
    • 3-Way F Metri-Pack Series 480 (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN

66

Outside Ambient Temperature Sensor Return

B

WHT

119

Mode Switch Output

C

BRN

41

Fuse Output-Ignition 3