Subject: 99 pin PCM WIRE COLOR CONNECTOR Circuit No
From: <Saved by Windows Internet Explorer 7>
Date: Fri, 7 Nov 2008 13:45:07 -0500

Circuit Number C1 (Red)

This table contains all of the 1998 Pin connections, Wire colors, and Functions of Connector C1 (Red).  There are 80 pins on this connector

Pin

Wire Color

Function

1

Not Used

2

Not Used

3

WHT

EVAP Canister Vent Solenoid Valve

4

BRN/WHT

Camshaft Position Sensor

5

Not Used

6

Not Used

7

YEL

VSS Signal return

8

Not used

9

PNK/BLK

Injector #3 Control

10

Not Used

11

DK BLU

VTD Fuel Enable

12

LT BLU/BLK

Injector #4 Control

13

RED/WHT

Ignition #2 Control

14

DK GRN

A/C Status

15

BLK/WHT

Injector #5 Control

16

Not used

17

Not used

18

YEL/BLK

Injector #6 Control

19

Not used

20

Not used

21

PPL

IAT Sensor Ground

22

DK BLU

Transmission Range Signal B

23

LT GRN/BLK

Injector #2 Control

24

BLK/WHT

Sensor Ground Jumper

25

PNK

Transmission Range Signal A

26

Not used

27

RED/BLK

Injector #7 Control

28

Not used

29

Not used

30

GRY/BLK

Spark Retard Signal

31

DK BLU/WHT

Injector #8 Control

32

ORN/BLK

PNP Switch Signal

33

BLK

Injector #1 Control

34

GRY or WHT

Skip Shift Solenoid (M6), or 3-2 Shift Solenoid (A/T)

35

LT GRN

1-2 Shift Solenoid

36

DK BLU

Fuel Gauge Output Control

37

BRN/WHT

MIL Control

38

Not used

39

DK GRN/WHT

A/C Clutch Relay Control

40

WHT or YEL/BLK

Skip Shift Lamp Control (M/T) or 2-3 Shift Solenoid (A/T)

Elmer Boggs     Eboggs_jkvl      1/22/2001

Continued on next page

Circuit Number C1 (Red)

Table continued.

Pin

Wire Color

Function

41

BRN/WHT

Low Oil Level Indicator Lamp Control

42

LT/GRN

Reverse Inhibit Solenoid Control

43

DK/GRN

Cooling Fan relay #1 Control

44

YEL

Crankshaft Position Sensor Input

45

DK GRN/WHT

EVAP Canister Purge Valve Control

46

Not Used

47

DK GRN/WHT

A/C Request Signal

48

YEL

MAF Signal

49

PPL

Ignition #1 Control

50

Not Used

51

Not Used

52

PPL/WHT

Ignition #8 Control

53

RED

Ignition #7 Control

54

LT BLU/WHT

Ignition #6 Control

55

DK GRN/WHT

VSS Output Signal

56

DK GRN

Ignition #5 Control

57

DK GRN/WHT

Ignition #4 Control

58

LT BLU

Ignition #3 Control

59

BRN/WHT

Ignition Control Reference Low Bank 2

60

BRN

Ignition Control Reference Low Bank 1

61

RED

Transmission Range Signal C

62

BLK

EGR Pintle Position Ground

63

BLK

A/C Refrigerant Pressure Sensor Ground

64

Not used

65

Not used

66

Not used

67

Not used

68

Not used

69

Not used

70

Not used

71

PPL

VSS Signal Low

72

BLK

PCM Ground

73

Not used

74

Not used

75

GRY

Left and Right Fuel Tank Sensor Ground

76

BLK

PCM Ground

77

PPL

TCC/Brake Switch Signal

78

Not used

79

Not used

80

Not used

Elmer Boggs     Eboggs_jkvl      1/22/2001

Circuit Number C2 (Blue)

This table contains all of the Pin connections, Wire colors, and Functions of Connector C2 (Blue).  There are 80 pins on this connector

Pin

Wire Color

Function

1

TAN

HO2S Signal Low Bank 2 Sensor 2

2

TAN/WHT

HO2S Signal Low Bank 1 Sensor 2

3

TAN

Serial Data (UART)

4

RED

Camshaft Position Sensor B+ Supply

5

TAN

HO2S Signal Low Bank 2 Sensor 1

6

TAN/WHT

HO2S Signal Low Bank 1 Sensor 1

7

RED/BLK

A/C Refrigerant Pressure Sensor Signal

8

TAN

IAT Sensor Signal

9

BRN

EGR Pintle Position Sensor Signal

10

PPL

Fuel Level Sensor Signal

11

Not used

12

DK BLU

TP Sensor Signal

13

YEL/BLK

Transmission Fluid Temperature Signal

14

ORN/BLK

Transmission Fluid Temperature Ground

15

Not used

16

Not used

17

Not used

18

Not used

19

PNK

PCM Ignition 1 Feed

20

ORN

PCM Battery Feed

21

BLK

PCM Ground

22

YEL/BLK

Crankshaft Position Sensor Ground

23

BLK

TP sensor Ground

24

BLK/WHT

Sensor Ground Jumper

25

BRN

ECT Sensor Ground

26

ORN/BLK

MAP Sensor Ground

27

Not used

28

DRK BLU

Engine Cooling Fan Relay #2 and #3 Control

29

Not used

30

BRN

AIR Pump Relay Control

31

PPL

AIR Solenoid Relay Control

32

TAN/BLK

TCC Enable Control

33

BRN

TCC (PWM) Solenoid Valve Control

34

GRY

EGR Valve Ground

35

WHT

Engine Speed 9TACH)) Output Signal

36

LT BLU/WHT

Transmission Fluid Pressure Control Solenoid Control Low

37

DK GRN/WHT

Fuel Pump relay Control

38

LT BLU

EGR Valve Control Circuit

39

RED/BLK

Transmission Fluid Pressure Control Solenoid Control High

40

Not Used

Elmer Boggs     Eboggs_jkvl      1/22/2001

Continued on next page

Circuit Number C2 (Blue)

Table continued.

Pin

Wire Color

Function

41

PPL

HO2S Signal High Bank 2 Sensor 2

42

PPL/WHT

HO2S Signal High Bank 1 Sensor 2

43

GRY

TP Sensor 5V Reference

44

45

46

PPL

HO2S Signal High Bank 2 Sensor 1

47

PPL/WHT

HO2S Signal High Bank 1 Sensor 1

48

LT GRN

MAP Sensor Signal

49

YEL

ECT Sensor Signal

50

Not Used

51

Not Used

52

DK GRN

Fuel Tank Pressure Sensor Signal

53

Not Used

54

LT GRN/BLK

IAC Coil B Low

55

LT BLU/BLK

IAC Coil A Low

56

LT BLU/WHT

IAC Coil A High

57

LT GRN/WHT

IAC Coil B High

58

PPL

Serial Data (Class 2)

59

Not Used

60

BLK

PCM Ground

61

ORN

PCM Battery Feed

62

LT GRN

Crankshaft Position Sensor B+ Supply

63

Not used

64

GRY

MAP Sensor 5.0 Volt Reference

65

GRY

5V Reference

66

GRY

A/C Refrigerant Pressure Sensor 5.0 Volt Reference

67

GRY

5V Reference

68

LT BLU

Knock Sensor (KS) Rear

69

DK BLU

Knock Sensor (KS) Front

70

PNK/BLK

Camshaft Position Sensor ground

71

Not used

72

Not used

73

Not used

74

Not used

75

Not used

76

BRN

Oil Level Sensor Signal

77

Not used

78

Not used

79

Not used

80

Not used

Elmer Boggs     Eboggs_jkvl      1/22/2001