GM Service Manual Online
For 1990-2009 cars only
Connector 1: Fuse Block - Underhood Label
Connector 2: Fuse Block - Underhood Top View
Connector 3: Fuse Block - Underhood Bottom View
Connector 4: Fuse Block - IP Label
Connector 5: Fuse Block - IP Top View
Connector 6: Fuse Block - IP Bottom View
Connector 7: C202 - Roof Harness to I/P Fuse Block
Connector 8: C203 - I/P Harness to I/P Fuse Block
Connector 9: C204 - I/P Harness to I/P Fuse Block
Connector 10: C205 - I/P Harness to I/P Fuse Block
Connector 11: C206 - I/P Harness to I/P Fuse Block
Connector 12: C207 - Front Harness to I/P Fuse Block
Connector 13: C208 - Front Harness to I/P Fuse Block
Connector 14: C209 - Front Harness to I/P Fuse Block
Connector 15: C210 - Body Harness to I/P Fuse Block
Connector 16: C211 - Body Harness to I/P Fuse Block

Fuse Block - Underhood Label


Object Number: 1262801  Size: MF

Fuse Block - Underhood Label Usage

No.

Fuse/Circuit Breaker

Rating

Description

Ef1

IGN 1

30A

Ignition-1 (Key)

Ef2

IGN 3

30A

Ignition-2 (Key)

Ef3

RAD FAN HI

40A

Cooling Fan High Speed

Ef4

BLOWER MTR

30A

Blower Relay

Ef5

ENG MAIN

30A

Main Relay

Ef6

MAIN

40A

I/P Fuse Block (F1-F10)

Ef7

ILL LAMP

20A

Illumination Relay

Ef8

RR DEFOG

30A

Rear Defog Relay

Ef9

ELEC WINDOW

30A

Power Window

Ef10

RAD FAN LOW

30A

Cooling Fan Low Speed

Ef11

ABS

50A

ABS

Ef12

HEADLAMP

20A

Head Lamp Low

Ef13

HORN

10A

Horn Relay

Ef14

FRT FOG

15A

Front Fog Relay

Ef15

SIREN

10A

Siren

Ef16

ILL LH

10A

Illumination LH

Ef17

ILL RH

10A

Illumination RH

Ef18

HL LOW RH

10A

Head Lamp Low LH

Ef19

HL LOW RH

10A

Head Lamp Low RH

Ef20

HL HI LH

10A

Head Lamp High LH

Ef21

HL HI RH

10A

Head Lamp High RH

Ef22

ECM

10A

ECM

Ef23

FUEL PUMP

15A

Fuel Pump Relay

Ef24

A/C COMP

10A

A/C Comp. Relay

Ef25

EMS 1

10A

Injector (2.0 DOHC)

Ef26

EMS 2

15A

DIS (2.0 DOHC)/Injector (1.8L)

Ef27

MIR, HEAT

10A

Mirror Heating

Ef28

SOCKET

15A

Power Socket

D29

DIODE

--

A/C Compressor

Ef30

HEATG MAT

15A

Heating Mat

Ef31

--

10A

Not Used

Ef 32

--

10A

Not Used

Ef33

--

15A

Not Used

Fuse Block - Underhood Top View


Object Number: 1478507  Size: MF

Fuse Block - Underhood Bottom View


Object Number: 1478508  Size: MF

Fuse Block - Underhood Wire Entry

Connector Part Information

108-Way (BK)

Pin

Wire Color

Circuit No.

Function

1

--

2

Battery Positive Voltage (BUS)

2

--

2

Battery Positive Voltage (BUS)

3

--

2

Battery Positive Voltage (BUS)

4

--

2

Battery Positive Voltage (BUS)

5

--

2

Battery Positive Voltage (BUS)

6

--

2

Battery Positive Voltage (BUS)

7

--

2

Battery Positive Voltage (BUS)

8

--

2

Battery Positive Voltage (BUS)

9

--

2

Battery Positive Voltage (BUS)

10

PU

1687

Park Lamp Supply Voltage

11

--

1687

Park Lamp Supply Voltage (BUS)

12

GY

12

Headlamp Low Beam Supply Voltage

13

--

12

Headlamp Low Beam Supply Voltage (BUS)

14

L-GN/BK

11

Headlamp High Beam Supply Voltage

15

--

11

Headlamp High Beam Supply Voltage (BUS)

16

OG/BK

642

Battery Positive Voltage

17

OG

1642

Battery Positive Voltage

18

OG/BK

342

Battery Positive Voltage

19

OG/BK

742

Battery Positive Voltage

20

OG

242

Battery Positive Voltage

OG

242

Battery Positive Voltage

21

OG

142

Battery Positive Voltage

22

OG/BK

1440

Battery Positive Voltage

23

OG

1740

Battery Positive Voltage

24

OG/D-BU

1540

Battery Positive Voltage

25

PU/WH

709

Left Park Lamp Supply Voltage

26

PU/WH

309

Right Park Lamp Supply Voltage

PU/WH

309

Right Park Lamp Supply Voltage

27

YE/D-GN

712

Left Headlamp Low Beam Supply Voltage

YE/D-GN

712

Left Headlamp Low Beam Supply Voltage

28

D-GN/WH

312

Right Headlamp Low Beam Supply Voltage

29

GY

711

Left Headlamp High Beam Supply Voltage

30

PU

311

Right Headlamp High Beam Supply Voltage

31

--

2

Battery Positive Voltage (BUS)

32

--

2

Battery Positive Voltage (BUS)

33

--

2

Battery Positive Voltage (BUS)

34

--

2

Battery Positive Voltage (BUS)

35

--

2

Battery Positive Voltage (BUS)

36

--

2

Battery Positive Voltage (BUS)

37

--

2

Battery Positive Voltage (BUS)

38

--

2

Battery Positive Voltage (BUS)

39

--

2

Battery Positive Voltage (BUS)

40

GY/WH

1534

Ignition 1 Voltage

41

GY/WH

1534

Ignition 1 Voltage

42

D-GN

293

Rear Defog Element Supply Voltage

43

L-GN

580

Power Window Supply Voltage

44

D-BU

59

A/C Compressor Clutch Supply Voltage

45

GY/WH

1534

Ignition 1 Voltage

46

OG/D-GN

1042

Battery Positive Voltage

OG/D-GN

1042

Battery Positive Voltage

47

OG/BK

1142

Battery Positive Voltage

48

OG/D-BU

542

Battery Positive Voltage

49

OG/WH

442

Battery Positive Voltage

50

RD

42

Battery Positive Voltage

51

OG/BK

842

Battery Positive Voltage

OG/BK

842

Battery Positive Voltage

52

OG

2040

Battery Positive Voltage

53

OG/D-GN

1940

Battery Positive Voltage

54

OG/BK

1640

Battery Positive Voltage

55

PK/BK

839

Ignition 1 Voltage (2.0L MR-140)

D-GN/YE

2100

Ignition 1 Voltage (1.6L Sirius D4)

56

PK

1039

Ignition 1 Voltage (2.0L MR-140)

PK

1039

Ignition 1 Voltage (2.0L MR-140)

GY/D-GN

2157

Ignition 1 Voltage (1.6L Sirius D4)

57

GY

267

Heated Mirror/Rear Defog Relay Coil Supply Voltage

58

RD/D-BU

341

Ignition 3 Voltage

59

BK

150

Ground

60

PK/BK

1239

Ignition 1 Voltage

PK/BK

1239

Ignition 1 Voltage (2.0L MR-140)

61

D-BU

193

Rear Defog Relay Control

62

OG/BK

1142

Battery Positive Voltage

63

BK

150

Ground

64

OG/D-BU

542

Battery Positive Voltage

65

D-GN/WH

335

Low Speed Cooling Fan Relay Control

66

OG-WH

442

Battery Positive Voltage

67

BN/BK

1080

Park Lamp Relay Control

68

PU

1687

Park Lamp Supply Voltage

69

OG/BK

1440

Battery Positive Voltage

70

BK/WH

29

Horn Control

70

BK/WH

29

Horn Control

71

D-GN

67

A/C Compressor Clutch Coil Supply Voltage

72

D-BU

59

A/C Compressor Clutch Supply Voltage

D-BU

59

A/C Compressor Clutch Supply Voltage

73

D-GN

293

Rear Defog Element Supply Voltage

74

RD/YE

241

Ignition 3 Voltage

75

L-GN

580

Power Window Supply Voltage

76

RD/YE

241

Ignition 3 Voltage

77

BN

409

Cooling Fan Motor Supply Voltage

BN

409

Cooling Fan Motor Supply Voltage

78

RD/YE

241

Ignition 3 Voltage (2.0L MR-140)

D-GN/YE

2100

Ignition 1 Voltage (1.6L Sirius D4)

79

OG/D-GN

1042

Battery Positive Voltage

80

OG/D-GN

1042

Battery Positive Voltage

81

OG/BK

1440

Battery Positive Voltage

82

BK

28

Horn Relay Control

83

OG/BK

1640

Battery Positive Voltage

84

RD/YE

241

Ignition 3 Voltage

85

PK/BK

539

Ignition 1 Voltage (2.0L MR-140)

GY/BK

1029

Main Relay Control (1.6L Sirius D4)

86

OG

242

Battery Positive Voltage

87

GY

473

High Speed Cooling Fan Relay Control

GY

473

High Speed Cooling Fan Relay Control

88

OG/BK

342

Battery Positive Voltage

89

BK

150

Ground

90

OG/BK

742

Battery Positive Voltage

91

BN/WH

1798

Headlamp Relay Control

92

WH/BK

1346

Headlamp Relay Supply Voltage

93

BK

150

Ground

94

GY

34

Front Fog Lamp Supply Voltage

GY

34

Front Fog Lamp Supply Voltage

95

BK

150

Ground (2.0L MR-140)

PK

439

Ignition 1 Voltage (1.6L Sirius D4)

PK

439

Ignition 1 Voltage (1.6L Sirius D4)

96

D-BU

120

Fuel Pump Supply Voltage

97

GY/WH

1534

Ignition 1 Voltage

98

BK

150

Ground

OG

242

Battery Positive Voltage

99

PU

532

Cooling Fan Motor Supply Voltage

100

RD/YE

241

Ignition 3 Voltage (2.0L MR-140)

D-GN/YE

2100

Ignition 1 Voltage (1.6L Sirius D4)

101

D-BU/BK

65

Blower Motor Feed

102

L-BU/PK

52

Blower Motor High Control

103

OG/BK

842

Battery Positive Voltage

104

PK

439

Ignition 1 Voltage

PK/BK

1239

Ignition 1 Voltage

105

OG

1740

Battery Positive Voltage

106

BN/BK

317

Fog Lamp Relay Coil Supply Voltage

107

OG/BK

1940

Battery Positive Voltage

108

L-GN

465

Fuel Pump Relay Control

Fuse Block - IP Label


Object Number: 1838987  Size: SF

Fuse Block - IP Label Usage

No.

Fuse/Circuit Breaker

Rating

Description

F1

SUN ROOF

20A

Sun Roof

F2

STOP LP

15A

Stop Lamp

F3

ROOM LP

10A

Room Lamp, Clock, Cluster, Map Lamp, Trunk Room Lamp

F4

ALDL

10A

DLC 6 Terminal

F5

--

--

Not Used

F6

--

--

Not Used

F7

DR LOCK

15A

Door Lock Unit

F8

HAZARD

15A

Hazard Switch

F9

TCM

10A

TCM, Immobilizer

F10

AUDIO

10A

Radio, Auto HVAC

F11

ELEC MIRR

10A

Outside Rearview Mirrors

F12

WIPER

25A

Wipers

F13

EMS

15A

Generator, CMP Sensor, EVAP Canister Purge Solenoid

F14

BACK-UP

10A

Back Up Lamp, PNP Switch

F15

ECM

10A

TCM, Cluster, PNP Switch, ECM (2.0 DOHC)

F16

CLUSTER

10A

Cluster, BTSI Solenoid, Chime Bell, Clock

F17

RELAY IGN

10A

Ignition 2 Relay, ABS Module, EBCM

F18

HEATER

20A

A/C

F19

AIR BAG

10A

SDM

F20

TURN SIG

10A

Turn Signal Lamp

F21

IMMOBILIZER

10A

Immobilizer

F22

AUDIO

15A

Radio

F23

CIGAR

20A

Cigar Lighter, Power Socket Center

F24

--

--

Not Used

Fuse Block - IP Top View


Object Number: 1478509  Size: MF

Fuse Block - IP Bottom View


Object Number: 1478510  Size: MF

C202 - Roof Harness to I/P Fuse Block


Object Number: 1468516  Size: CH

Connector Part Information

  • OEM: 174923
  • Service: N/A
  • Description: 6-Way F 070 Multilock Series (WH)

C202 - Roof Harness to I/P Fuse Block

Pin

Wire

Circuit

Function

1

OG/BK

340

Battery Positive Voltage

2-4

--

--

Not Used

5

WH/RD

161

Antenna Enable Signal

6

D-BU

156

Courtesy Lamp Control

C203 - I/P Harness to I/P Fuse Block


Object Number: 1500005  Size: CH

Connector Part Information

  • OEM: 85096-1
  • Service: N/A
  • Description: 22-Way F .070 Multilock Series (WH)

C203 - I/P Harness to I/P Fuse Block

Pin

Wire

Circuit

Function

1

OG

540

Battery Positive Voltage

2

--

--

Not Used

3

L-BU

14

Left Turn Signal Lamps Indicator Control

4

BN

33

Brake Warning Indicator Control

5

OG

1040

Battery Positive Voltage (LHD)

6

OG/BK

240

Battery Positive Voltage

7

PK

539

Ignition 1 Voltage (Automatic Transmission)

PK

539

Ignition 1 Voltage (RHD)

8

BN/WH

1798

Headlamp Relay Control

9

PK/BK

739

Ignition 1 Voltage (Automatic Transmission)

10

PK/BK

139

Ignition 1 Voltage

11

PU

156

Courtesy Lamp Control

12

RD

161

Antenna Enable Signal

13

OG

1040

Battery Positive Voltage

14

--

--

Not Used

15

WH

15

Right Turn Signal Lamps Supply Voltage

16

BN

20

Stop Lamp Switch Signal

17

--

--

Not Used

18

BN

1080

Park Lamp Relay Control

19

PU

309

Right Park Lamp Supply Voltage

20

PU

309

Right Park Lamp Supply Voltage

21

PK

339

Ignition 1 Voltage

22

PK

339

Ignition 1 Voltage

C204 - I/P Harness to I/P Fuse Block


Object Number: 1500006  Size: CH

Connector Part Information

  • OEM: 173851
  • Service: N/A
  • Description: 12-Way F .070 Multilock Series (WH)

C204 - I/P Harness to I/P Fuse Block

Pin

Wire

Circuit

Function

1

RD/YE

241

Ignition 3 Voltage

2-3

--

--

Not Used

4

RD

901

Ultra Sonic Sensor Signal

5

BK

450

Ground

6

RD/YE

241

Ignition 3 Voltage

7

PK

39

Ignition 1 Voltage

8

--

--

Not Used

9

PK/BK

239

Ignition 1 Voltage

10

YE

43

Accessory Voltage

11

YE

43

Accessory Voltage

YE

43

Accessory Voltage (Automatic Transmission)

12

YE/BK

143

Accessory Voltage

C205 - I/P Harness to I/P Fuse Block


Object Number: 1466976  Size: CH

Connector Part Information

  • OEM: 173852
  • Service: N/A
  • Description: 14-Way F .070 Multilock Series (WH)

C205 - I/P Harness to I/P Fuse Block

Pin

Wire

Circuit

Function

1

RD/WH

41

Ignition 3 Voltage

2

RD/WH

41

Ignition 3 Voltage

3

OG

1840

Battery Positive Voltage

4

RD/WH

141

Ignition 3 Voltage

5

RD/WH

141

Ignition 3 Voltage

6

OG

340

Battery Positive Voltage

7

OG

40

Battery Positive Voltage

8

PK/BK

239

Ignition 1 Voltage

9

PK/BK

239

Ignition 1 Voltage (LHD)

PK/BK

239

Ignition 1 Voltage

10

PK/BK

239

Ignition 1 Voltage (RHD)

PK/BK

239

Ignition 1 Voltage (w/Automatic Transmission LHD)

11-12

--

--

Not Used

13

RD/WH

141

Ignition 3 Voltage

14

OG

340

Battery Positive Voltage

OG

340

Battery Positive Voltage

C206 - I/P Harness to I/P Fuse Block


Object Number: 1506100  Size: CH

Connector Part Information

  • OEM: AK36331
  • Service: N/A
  • Description: 3-Way F (BN)

C206 - I/P Harness to I/P Fuse Block

Pin

Wire

Circuit

Function

1

RD

3

Ignition 1 Voltage

2

YE

4

Accessory Voltage

3

BN

300

Ignition 3 Voltage

C207 - Front Harness to I/P Fuse Block


Object Number: 1500005  Size: CH

Connector Part Information

  • OEM: 85096-1
  • Service: N/A
  • Description: 22-Way F .070 Multilock Series (WH)

C207 - Front Harness to I/P Fuse Block

Pin

Wire

Circuit

Function

1

PU

309

Right Park Lamp Supply Voltage

2

BN/WH

1798

Headlamp Relay Control

3

--

--

Not Used

4

BN/BK

1080

Park Lamp Relay Control

5-6

--

--

Not Used

7

BN

33

Brake Warning Indicator Control

BN

33

Brake Warning Indicator Control (w/ABS)

8

D-BU

14

Left Turn Signal Lamp Supply Control

D-BU

14

Left Turn Signal Lamp Supply Control

9-10

--

--

Not Used

11

BN/BK

885

Left Rear Wheel Speed Sensor Signal

12

D-GN/WH

884

Left Rear Wheel Speed Sensor Return

13-15

--

--

Not Used

16

BN

20

Stop Lamp Switch Signal

17

--

--

Not Used

18

WH

15

Right Turn Signal Lamp Supply Voltage

19-21

--

--

Not Used

22

RD/WH

22

Ground

C208 - Front Harness to I/P Fuse Block


Object Number: 1466976  Size: CH

Connector Part Information

  • OEM: 173852-1
  • Service: N/A
  • Description: 14-Way F .070 Multilock Series (WH)

C208 - Front Harness to I/P Fuse Block

Pin

Wire

Circuit

Function

1

--

--

Not Used

2

PK

439

Ignition 1 Voltage

3

PK

439

Ignition 1 Voltage (w/MR140 2.0L)

4

PK/WH

739

Ignition 1 Voltage

5

PK/BK

539

Ignition 1 Voltage (2.0L)

PK/BK

539

Ignition 1 Voltage (MR-140)

6

PK/BK

539

Ignition 1 Voltage (w/ABS)

7-9

--

--

Not Used

10

RD/YE

241

Ignition 3 Voltage

11

--

--

Not Used

12

PU

883

Right Rear Wheel Speed Sensor Low Reference (w/ABS)

13

YE

882

Right Rear Wheel Speed Sensor Low Signal (w/ABS)

14

PU/WH

709

Left Park Lamp Supply Voltage

C209 - Front Harness to I/P Fuse Block


Object Number: 1506091  Size: CH

Connector Part Information

  • OEM: MG610658
  • Service: N/A
  • Description: 1-Way F (BK)

C209 - Front Harness to I/P Fuse Block

Pin

Wire

Circuit

Function

1

OG

142

Battery Positive Voltage

C210 - Body Harness to I/P Fuse Block


Object Number: 1466978  Size: CH

Connector Part Information

  • OEM: 173853
  • Service: N/A
  • Description: 18-Way F .070 Multilock Series (WH)

C210 - Body Harness to I/P Fuse Block

Pin

Wire

Circuit

Function

1

RD/WH

141

Ignition 3 Voltage

2-4

--

--

Not Used

5

PU

156

Courtesy Lamp Control

6

PU

156

Courtesy Lamp Control

7

--

--

Not Used

8

PU

309

Right Park Lamp Relay Supply Voltage

9

D-BU

14

Left Turn Signal Lamp Supply Voltage

10

BN

33

Brake Warning Indicator Control

11

WH

15

Right Turn Signal Lamp Supply Voltage

12

BN

20

Stoplamp Supply Voltage

13

BN

20

Stoplamp Supply Voltage

14-15

--

--

Not Used

16

D-BU/WH

884

Left Rear Wheel Speed Sensor Return

17

RD/BK

885

Left Rear Wheel Speed Sensor Signal

18

--

--

Not Used

C211 - Body Harness to I/P Fuse Block


Object Number: 1500006  Size: CH

Connector Part Information

  • OEM: 173851
  • Service: N/A
  • Description: 12-Way F .070 Multilock Series (WH)

C211 - Body Harness to I/P Fuse Block

Pin

Wire

Circuit

Function

1

PU

709

Left Park Lamp Supply Voltage

2-3

--

--

Not Used

4

OG

1340

Battery Positive Voltage

5

RD/WH

741

Ignition 1 Voltage

6

BN

882

Right Rear Wheel Speed Sensor Signal

7

YE/D-BU

883

Right Rear Wheel Speed Sensor Return

8-11

--

--

Not Used

12

OG

340

Battery Positive Voltage