GM Service Manual Online
For 1990-2009 cars only

A/C Compressor Refrigerant Pressure Switch


Object Number: 194380  Size: CH

Connector Part Information

    • K 4-20
    • 4 Way

Pin

Wire Color

Circuit No.

Function

1

BLK/WHT

FM99

A/C Request Output Signal

2

BLK/WHT

FM7

A/C Request Signal

3

BRN/WHT

XM120

B+ from Relay K28

4

BLK

F57

Ground to G103

Auxiliary Engine Coolant Fan #1


Object Number: 194387  Size: CH

Connector Part Information

    • ZFW 2-6
    • 2 Way F

Pin

Wire Color

Circuit No.

Function

A

RED/WHT

AM13

B+ from Relay K26

B

BRN/GRN

XU3

Ground from Relay K52

Auxiliary Engine Coolant Fan #2


Object Number: 194387  Size: CH

Connector Part Information

    • ZFW 2-6
    • 2 Way F

Pin

Wire Color

Circuit No.

Function

A

RED/WHT

AM5

Fan ON Signal

B

BLK

F4

Ground to G103

Auxiliary Water Pump Relay K22


Object Number: 193830  Size: CH

Connector Part Information

    • ZF9-28
    • 9 Way F

Pin

Wire Color

Circuit No.

Function

1

Not Used

2

RED/BLU

AP3

B+ from Relay K26

3

Not Used

4

BRN

X6

B+ from Fuse #10

5

BRN/GRN

XU2

Auxiliary Water Pump On Signal

6

BLK

F5

Ground to G103

7-9

Not Used

Coolant Fan Test Connector


Object Number: 194195  Size: CH

Connector Part Information

    • ZPM 6-59
    • 6 Way M

Pin

Wire Color

Circuit No.

Function

1

BRN/BLU

XP999

Test Pin for Relay K26 and Relay K48

2

BRN/WHT

XM999

Test Pin for Relay K28

3

BRN

X999

B+ from Fuse #13

4

BRN/WHT

XM998

Test pin for Relay K67

5

BRN/WHT

XM997

Test Pin for Relay K28 and Relay K52

6

BLK

F999

Ground to G103

Electric Cooling Fan


Object Number: 194299  Size: CH

Connector Part Information

    • ZFW 2-24
    • 2 Way F

Pin

Wire Color

Circuit No.

Function

A

RED/WHT

AM17

Fan ON Signal

B

BLK

F100

Ground to G103

Fan Control Relay K26


Object Number: 193830  Size: CH

Connector Part Information

    • ZF 9-11
    • 9 Way F

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

RED

A222

B+ from Fuse #52

3

RED

A6

B+ from Fuse #50

4

RED

A223

B+ from Fuse #52

5

RED/BLU

AP1

Fan Resistor Signal

6

BRN/WHT

XP3

Relay K26 Control Signal

7

--

--

Not Used

8

RED/WHT

AM1

Fan #1 ON Signal

9

--

--

Not Used

Fan Control Relay K28


Object Number: 193830  Size: CH

Connector Part Information

    • ZF 9-28
    • 9 Way F
    • ORN

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

BRN

X400

B+ from Fuse #10

3

--

--

Not Used

4

RED

A14

B+ from Fuse #40

5

BRN/WHT

XM10

Relay K28 Control Signal

6

BRN/WHT

XP124

Relay K28 Control Signal

7

--

--

Not Used

8

RED/WHT

AM4

Fan #2 On Signal

9

--

--

Not Used

Fan Control Relay K52


Object Number: 193830  Size: CH

Connector Part Information

    • ZF 9-32
    • 9 Way F
    • BRN

Pin

Wire Color

Circuit No.

Function

1

--

--

Not used

2

BRN/GRN

XU3

Fan #1 Control Signal

3

--

--

Not Used

4

BRN

X30

B+ form Fuse #10

5

RED/WHT

AM3

Fan #2 Control Signal

6

BRN/WHT

XM123

Relay K52 Control Signal

7

--

--

Not Used

8

BLK

F7

Ground to G103

9

--

--

Not Used

Fan Control Relay K67


Object Number: 193830  Size: CH

Connector Part Information

    • ZF 9-27
    • 9 Way F
    • BLU

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

BRN

X2

B+ from Fuse #10

3

--

--

Not Used

4

RED

A710

B+ from Fuse #42

5

--

--

Not Used

6

BRN/WHT

XM5

XM998

Relay K67 Control Signal

7

--

--

Not Used

8

RED/WHT

AM16

Coolant Fan ON Signal

9

--

--

Not Used

Fan Control Relay K87


Object Number: 193830  Size: CH

Connector Part Information

    • ZF 9-8
    • 9 Way F
    • GRN

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

GRN

U4

Compressor Control Signal

3

--

--

Not Used

4

RED

A221

B+ from Fuse #52

5

--

--

Not Used

6

BLK

F2

Ground to G103

7

--

--

Not Used

8

RED/WHT

AM12

Fan #1 Control Signal

9

--

--

Not Used

Heater Water Auxiliary Pump


Object Number: 193700  Size: CH

Connector Part Information

    • ZFW 2-57
    • 2 Way F

Pin

Wire Color

Circuit No.

Function

1

BLK

F75

Ground to G103

2

BRN

X70

B+ from Fuse #10

Primary Cooling Fan Temperature Switch


Object Number: 194381  Size: CH

Connector Part Information

    • K 3-10
    • 3 Way

Pin

Wire Color

Circuit No.

Function

1

BLK

F600

Ground to G103

2

BRN/BLU

XP30

Relay K26 Control

3

BRN/WHT

XM5

Relay K67 Control

Secondary Cooling Fan Temperature Switch


Object Number: 194383  Size: CH

Connector Part Information

    • ZFW 3-6
    • 3 Way F

Pin

Wire Color

Circuit No.

Function

1

BRN/BLK

XF101

Compressor Control Signal

2

BRN/WHT

XM122

Relay K28 & K52 Control

3

BLK

F60

Ground to G103

Water Auxiliary Pump


Object Number: 193700  Size: CH

Connector Part Information

    • ZFW 2-40
    • 2 Way F

Pin

Wire Color

Circuit No.

Function

1

BLK

F6

Ground to G103

2

BRN/GRN

XU2

Pump Control Signal