GM Service Manual Online
For 1990-2009 cars only
Connector 1: Fuseblock - I/P X1
Connector 2: Fuseblock - I/P X2
Connector 3: Fuseblock - Underhood X1
Connector 4: Fuseblock - Underhood X3
Connector 5: Ignition Switch

Fuseblock - I/P X1


Object Number: 1835062  Size: CH

Connector Part Information

  • OEM: TYCO 0-1743134-2
  • Service: N/A
  • Description: 60-Way F Unsealed

Fuseblock X1

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

YE

--

Accessory Voltage

3-9

--

--

Not Used

10

PK

--

Run/Crank Ignition 1 Voltage

11

PK

--

Run/Crank Ignition 1 Voltage

12

PK

--

Run/Crank Ignition 1 Voltage

13

--

--

Not Used

14

RD/WH

--

Battery Positive Voltage

15-16

--

--

Not Used

17

YE

--

Accessory Voltage

18

YE

--

Accessory Voltage

19

PK

--

Run/Crank Ignition 1 Voltage

20-21

--

--

Not Used

22

RD/WH

--

Battery Positive Voltage

23-24

--

--

Not Used

25

PK

--

Run/Crank Ignition 1 Voltage

26

YE

--

Run/Crank Ignition 1 Voltage

27-28

--

--

Not Used

29

RD/WH

--

Battery Positive Voltage

30

RD/WH

--

Battery Positive Voltage

31

--

--

Not Used

32

PK

--

Run/Crank Ignition 1 Voltage

33-34

--

--

Not Used

35

RD/WH

--

Battery Positive Voltage

36-37

--

--

Not Used

38

RD/WH

--

Battery Positive Voltage

39-40

--

--

Not Used

41

RD/WH

--

Battery Positive Voltage

42

RD/WH

--

Battery Positive Voltage

43

BN

--

Run Ignition 3 Voltage

44-45

--

--

Not Used

46

RD/WH

--

Battery Positive Voltage

47-48

--

--

Not Used

49

RD/WH

--

Battery Positive Voltage

50

RD/WH

--

Battery Positive Voltage

51-53

--

--

Not Used

54

RD/WH

--

Battery Positive Voltage

55-56

--

--

Not Used

57

RD/WH

--

Battery Positive Voltage

58

RD/WH

--

Battery Positive Voltage

59

BN

--

Run Ignition 3 Voltage

60

BN

--

Run Ignition 3 Voltage

Fuseblock - I/P X2


Object Number: 1835062  Size: CH

Connector Part Information

  • OEM: TYCO 0-1743134-3
  • Service: N/A
  • Description: 60-Way F 110/250/375 Unsealed

Fuseblock To Block ASM - I/P Wiring Harness Junction X2

Pin

Wire Color

Circuit No.

Function

1-2

--

--

Not Used

3

RD/WH

--

Battery Positive Voltage

4

OG

--

Rear For Lamp Supply Voltage

5-6

--

--

Not Used

7

RD/WH

--

Battery Positive Voltage

8

BN

--

Run Ignition 3 Voltage

9

--

--

Not Used

10

PK

--

Run/Crank Ignition 1

11

WH

--

Rear Defog Relay Control

12

PK

--

Lift Glass/Trunk Exterior Release Signal

13

RD/WH

--

Battery Positive Voltage

14

--

--

Not Used

15

RD/WH

--

Battery Positive Voltage

16

BN

--

Run Ignition 3 Voltage

17

YE

--

Accessory Voltage

18

PK

--

Run/Crank Ignition 1 Voltage

19

PK

--

Run/Crank Ignition 1 Voltage

20

OG

--

Windshield Washer Pump Control

21

RD/WH

--

Battery Positive Voltage

22-23

--

--

Not Used

24

BN

--

Run Ignition 3 Voltage

25

YE

--

Run/Crank Relay Coil Control

26

PK

--

Run/Crank Ignition 1 Voltage

27

BN

--

Lift Glass/Trunk Motor Release Control

28

RD/WH

--

Battery Positive Voltage

29-30

--

--

Not Used

31

BN

--

Rap Relay Coil Control

32

PK

--

Run/Crank Ignition 1 Voltage

33

YE

--

Rear Fog Lamp Relay Control

34

RD/WH

--

Battery Positive Voltage

35

--

--

Not Used

36

RD/WH

--

Battery Positive Voltage

37

YE

--

Accessory Voltage

38

YE

--

Power Supply

49

RD/WH

--

Battery Positive Voltage

40-41

--

--

Not Used

42

RD/WH

--

Battery Positive Voltage

43

OG

--

--

44

BN

--

Signal Ground

45

YE

--

Accessory Voltage

46

--

--

Not Used

47

GY

--

Door Lock Actuator Lock Control

48

RD/WH

--

Battery Positive Voltage

49

BN

--

Door Lock Actuator Unlock Control

50

--

--

Not Used

51

RD/WH

--

Battery Positive Voltage

52

--

--

Not Used

53

YE

--

Accessory Voltage

54

--

--

Not Used

55

BN

--

Driver Door Lock Actuator Unlock Control

56

L-GN

--

Left Front Door Lock Relay Control

57

BK

--

Ground

58

PK/BK

--

Engine Main Relay Fused Control (2)

59-60

--

--

Not Used

Fuseblock - Underhood X1


Object Number: 1835064  Size: CH

Connector Part Information

  • OEM: TYCO 0-1743130-2
  • Service: N/A
  • Description: 55-Way Block Assembly Unsealed

Fuseblock X1

Pin

Wire Color

Circuit No.

Function

1

GY

--

Cooling Fan Motor Supply Volt (2)

2

--

--

Not Used

3

PK/BK

--

Engine Main Relay Fused Control  (2)

4

PK/BK

--

Engine Main Relay Fused Control  (2)

5

--

--

Not Used

6

RD/WH

--

Battery Positive Voltage

7

PU

--

Starter Solenoid Crank Voltage

8

YE

--

Starter Relay Coil Control

9-11

--

--

Not Used

12

PK/BK

--

Engine Main Relay Fused Control (3)

13

PK/BK

--

Engine Main Relay Fused Control (3)

14

PK/BK

--

Engine Main Relay Fused Control (3)

15

--

--

Not Used

16

PK/BK

--

Engine Main Relay Fused Control (4)

17

PK/BK

--

Engine Main Relay Fused Control (4)

18

BN

--

Engine Main Relay Fused Control

19

--

--

Not Used

20

PK/BK

--

Engine Main Relay Fused Control (1)

21

--

--

Not Used

22

L-BU

--

Cooling Fan Motor Supply Volt (1)

23-24

--

--

Not Used

25

D-GN

--

A/C Comp Clutch Supply Volt

26

PK/BK

--

Engine Main Relay Fused Control (4)

27

PK/BK

--

Engine Main Relay Fused Control (4)

28

BK

--

Ground

29

--

--

Not Used

30

D-GN

--

Low Speed Cooling Fan Relay Control

31-32

--

--

Not Used

33

WH

--

Cooling Fan Motor Low Reference

34

YE

--

Trans PSN Switch B2 Signal

35

--

--

Not Used

36

RD/WH

--

Battery Positive Voltage

37

RD/WH

--

Battery Positive Voltage

38

--

--

Not Used

39

BK/WH

--

Signal Ground

40-42

--

--

Not Used

43

BN/WH

--

Trans PSN Switch B1 Signal

44

WH

--

Trans PSN Switch PB Signal

45

PK

--

Run/Crank Ignition 1 Voltage

46

D-GN/WH

--

A/C Comp Clutch Relay Control

47

--

--

Not Used

48

D-GN/WH

--

Fuel Pump Primary Relay Control

49-50

--

--

Not Used

51

GY

--

Trans PSN Switch B3 Signal

52

--

--

Not Used

53

L-BU

--

Stop Lamp Supply Voltage

54

PK

--

Run/Crank Ignition 1 Voltage

55

L-GN

--

High Speed Cooling Fan Relay Control

56

--

--

Not Used

Fuseblock - Underhood X3


Object Number: 1835064  Size: CH

Connector Part Information

  • OEM: TYCO 1-1743130-3
  • Service: N/A
  • Description: 56-Way Block Assembly Unsealed

Fuseblock X3

Pin

Wire Color

Circuit No.

Function

1-2

--

--

Not Used

3

D-BU/WH

--

Right Front T/Signal Lamp Supply Voltage

4

PU/WH

--

Air Quality Sensor Signal

5

BN

--

Run Ignition 3 Voltage

6

L-BU/WH

--

Left Front T/Signal Lamp Supply Voltage

7

BN/WH

--

Windshield Washer Fluid Level Sensor Signal

8

--

--

Not Used

9

D-GN

--

Rear Window Washer Pump

10-11

--

--

Not Used

12

PU

--

Right Park Lamp Supply Voltage

13

D-GN/WH

--

Outside Ambient Air Temperature

14-15

--

--

Not Used

16

PU

--

Hood Closed Switch Signal

17

--

--

Not Used

18

D-GN

--

HDLP Leveling Motor Supply Voltage

19

--

--

Not Used

20

YE

--

Left HDLP Low Beam Supply Voltage

21

--

--

Not Used

22

OG/BK

--

Sensor Low Reference

23

--

--

Not Used

24

PU

--

Front Fog Lamp Supply

25

PU

--

Front Fog Lamp Supply

26

OG

--

Windshield Washer Pump Control

27

D-GN

--

HDLP Leveling Motor Supply Voltage

28-29

--

--

Not Used

30

BN/WH

--

Right HDLP Low Beam Supply Voltage

31-33

--

--

Not Used

34

D-GN/WH

--

Left HDLP High Beam Supply Voltage

35-36

--

--

Not Used

37

BK

--

Ground

38

--

--

Not Used

39

BN/WH

--

Left Park Lamp Supply Voltage

40-42

--

--

Not Used

43

L-GN/BK

--

Right HDLP High Beam Supply Voltage

44

--

--

Not Used

45

D-GN

--

HDRN Control

46

D-GN

--

HDRN Control

47-53

--

--

Not Used

54

PU

--

Headlamp Washer Pump Control

55-56

--

--

Not Used

Ignition Switch


Object Number: 307727  Size: CH

Connector Part Information

  • OEM: JAE IL-AG5-6S-S3C1
  • Service: N/A
  • Description: 6-Way F IL5 Unsealed

Ignition Switch

Pin

Wire Color

Circuit No.

Function

1

YE

--

Accessory Voltage

2

RD/WH

--

Battery Positive Voltage

3

PK

--

Ignition 1 Voltage

4

WH/BK

--

Ignition Key Resistor Signal

5

WH

--

Off/Run/ Crank Voltage

6

--

--

Not Used