PCM connectors

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S-Series PCM Connections (1991 - 2002)


OBDI 91-95

J1 PCM Engine/Body

Connector description

Looking at the face of the connector on the harness, with the clip/latch pointed down, the top row is "D", the bottom row is "C", and the rightmost pin is one counting up to the left.

  • SOHC - Pink connector
  • DOHC - Lt Blue connector

Connector pin descriptions

OBDI 91-95 - PCM Connector J1
C Color C Function D Color D Function
1 BLACK/WHITE Power Ground BLACK Intake Air Temperature sensor Return
2 TAN/WHITE Ground BLACK Manifold Absolute Pressure sensor Return
3 BLACK Engine coolant temperature sensor Ground BLACK Throttle Position sensor
4 BLACK Exhaust gas return valve Return
5 BLACK/RED Ignition Module Low
6 LIGHT BLUE/WHITE Idle air control valve A High ORANGE 12V Battery
7 LIGHT BLUE/BLACK Idle air control valve A Low WHITE/BLACK ALDL Port Diagnostics request
8 LIGHT GREEN/BLACK Idle air control valve B Low YELLOW/BLACK Coolant level sensor
9 LIGHT GREEN/WHITE Idle air control valve B High PURPLE Oxygen sensor High
10 DARK GREEN Air Conditioner Request TAN Oxygen sensor Low
11 WHITE Ignition Module IC Signal WHITE Ignition Module 6x Reference/Tack Out
12 YELLOW Engine coolant temperature sensor Return PURPLE/WHITE Ignition Module High
13 TAN/BLACK Ignition Module Bypass DARK BLUE Throttle body fuel injector

Multi-port fuel injector #4

14 DARK GREEN/WHITE Fuel Pump Relay DARK BLUE Multi-port fuel injector #3
15 DARK BLUE/WHITE Electronically variable orifice Low DARK GREEN Multi-port fuel injector #2
16 LIGHT BLUE/BLACK Electronically variable orifice High DARK GREEN Multi-port fuel injector #1


J2 PCM Engine/Body

Connector description

Looking at the face of the connector on the harness, with the clip/latch pointed down, the top row is "B", the bottom row is "A", and the rightmost pin is 1 counting up to the left.

  • SOHC - Pink connector
  • DOHC - Lt Blue connector


Connector pin descriptions

OBDI 91-95 - PCM Connector J2
A Color A Function B Color B Function
1 BROWN/WHITE SES LIGHT TAN/BLACK

LIGHT GREEN

UPSHIFT LIGHT
2 DARK GREEN SPD OUT 5K
3 DARK GREEN COOL FAN DARK GREEN TEMP LIGHT
4 DARK GREEN PWM1-CCP GRAY AC RELAY
5 LIGHT BLUE PWM2-EGR GRAY 5v TP SENSOR
6 GRAY 5v Intake Air Temperature sensor GRAY 5v Manifold Absolute Pressure sensor
7 PINK IGNITION TAN IAT
8 DARK BLUE TP SENSOR BROWN LNR EGR SENSOR
9 YELLOW VSS HI LIGHT GREEN MAP
10 PURPLE VSS LO
11 TAN SERIAL DATA
12 DARK BLUE KNCK SENSOR


J3 Transmission

Connector description

Looking at the face of the connector on the harness, with the clip/latch pointed down, the top row is "F", the bottom row is "E", and the rightmost pin is one counting up to the left.

  • Green


Connector pin descriptions

OBDI 91-95 - PCM Connector J3
E Color E Function F Color F Function
1 TAN/WHITE Power Ground DARK BLUE OF 1 - MLP
2 BLACK/WHITE Power Ground LIGHT GREEN OF 3 - 2nd
3 LIGHT BLUE Shift Mode YELLOW/BLACK OF 4 - 3rd
4 TAN/WHITE Oil temp
5 BROWN Brake
6 GRAY Shift select 3
7 YELLOW Shift select 2
8 BLACK/WHITE Shift select 1
9 WHITE Shift select D
10 PURPLE OF 5 - 4th
11
12
13
14 TAN/BLACK OF 2 - TCC
15 DARK BLUE/WHITE Turbine speed LO ORANGE/BLACK Oil temp return
16 BLACK/RED Turbine speed HI

OBDII 96-99

J1 PCM Engine/Body

Connector description

Needs connector description please. -Sprint

Connector pin descriptions

OBDII 96-99 - PCM Connector J1
C Color C Function D Color D Function
1 DARK GREEN COOL FAN MTR CTRL GREY A/C RELAY CTRL
2 TAN/BLACK UPSHIFT TT WHITE TACH OUT
3 BROWN/WHITE MIL (SERV ENG) TT DARK GREEN COOL TEMP GAUGE OUT
4 YELLOW LOW FUEL TT WHITE EVO HI
5 LIGHT BLUE CRUISE CLUTCH OUT BROWN EVO LO
6 PURPLE SERVICE TT DARK GREEN SPEED OUT 5K RPM
7 DARK GREEN COOL TEMP: A/T FL. TT PINK CRUISE MOVE OUT
8 PURPLE CLASS 2 DATA BUS PURPLE CLASS 2 DATA BUS
9 DARK BLUE FLASH POWER
10 DARK GREEN/WHITE FUEL PUMP OUT LIGHT BLUE SHFT MODE
11 DARK GREEN A/C REQUEST IN LIGHT GREEN CRUISE WOT/IDLE OUT
12 PINK IGN
13 ORANGE B+
14 BROWN BRAKE IN LIGHT BLUE DCKLD/LFTGTE ENABLE
15 GREY CRUISE RASC IN
16 PURPLE/WHITE FUEL GAUGE OUT BLACK FLASH RETURN

J2 PCM Engine/Body

Connector description

Needs connector description please. -Sprint

Connector pin descriptions

OBDII 96-99 - PCM Connector J2
A Color A Function B Color B Function
1 PNK/BLK INJ 3 DARK GREEN/WHITE EVAP CONTROL
2 LT BLUE/BLACK INJ 4 BLACK INJ 1
3 LT GREEN/BLACK INJ 2 YELLOW ENG COOL TEMP SENS IN
4 GRAY +5 VOLTS
5 BROWN LINEEGR FEEDBACK IN GRAY 5V TPS
6 DARK BLUE TPS IN BLACK/WHITE POWER GROUND
7 LIGHT GREEN MAP IN WHITE EST 1-4 OUT
8 TAN IAT SENSOR IN ORANGE EST 2-3 OUT
9 LIGHT GREEN/VIOLET IAC B HI OUT BLACK/WHITE POWER GROUND
10 LIGHT GREEN/BLACK IAC B LO OUT LIGHT BLUE LIN EGR SOL CTRL
11 LIGHT BLUE/BLACK IAC A LO OUT PINK LIN EGR RECIRC
12 LIGHT BLUE/WHITE IAC A HI OUT ORANGE B+

J3 Transmission

Connector description

Needs connector description please. -Sprint

Connector pin descriptions

OBDII 96-99 - PCM Connector J3
C Color C Function D Color D Function
1 BLACK MAP RTN
2 BLACK/WHITE FUEL LEVEL RETURN
3 BROWN/WHITE CYL NO 4 SIG
4 YELLOW/BLACK COOLANT LEVEL IN
5 PURPLE FUEL LEVEL IN
6
7
8 BLACK ECT SENS RTN
9
10 DARK BLUE KNOCK SENSOR IN BLACK IAT SENSOR RTN
11 TAN HO2S (REAR) LO IN BLACK TPS RTN
12 PURPLE/WHITE HO2S (REAR) HI IN
13 TAN O2S (FRONT) LO IN YELLOW TX REF HI
14 PURPLE O2S (FRONT) HI IN PURPLE TX REF LO
15 PURPLE VSS LO IN YELLOW VSS HI IN
16 BLACK LIN EGR FEEDBACK RTN

J4 Transmission

Connector description

Needs connector description please. -Sprint

Connector pin descriptions

OBDII 96-99 - PCM Connector J4 Automatic
A Color A Function B Color B Function
1
2 TAN/BLACK TCC OUT GRAY SEL SW B2
3 DARK BLUE TFP OUT YELLOW SEL SW B1
4 BLACK/WHITE SEL SW B0
5 PURPLE 4TH OUT WHITE SEL SQ B3
6 YELLOW/BLACK 3RD OUT
7 LIGHT GREEN 2ND OUT
8 ORANGE/BLACK TRANS FLUID TEMP IN
9 TAN/WHITE POWER GROUND
10 BLACK/WHITE POWER GROUND RED/BLACK TURBINE HI SPD IN
11 BLACK TRANS FLUID TEMP RTN DARK BLUE/WHITE TURBINE LO SPD IN
12

OBD2 00-02

J1 PCM Engine

Connector description

The connector has each pin numbered with slightly raised numbers on the backside. Numbering starts with 1 in what we'll call the top left corner and ends with 80 in the bottom right corner. Numbering is sequential from left to right for each row.

Connector pin descriptions

OBD2 00-02 - PCM Connector J1
Color Function Color Function
1 DARK BLUE TPS IN 41 GREY TPS +5V
2 TAN IAT IN 42 LIGHT GREEN/BLACK IAC SOL B LO
3 LIGHT GREEN MAP IN 43 LIGHT BLUE/BLACK IAC SOL A LO
4 BROWN LINEAR EGR 44 WHITE EVO SOL HI
5 PURPLE/WHITE H2OS 2 HI 45 LIGHT GREEN/VIOLET IAC SOL B HI
6 46 WHITE IGN MODULE
7 DARK BLUE KNOCK SENSOR 47
8 YELLOW CPS IN 48 BLACK/WHITE COOLANT TEMP
9 TAN GROUND 49
10 TAN H2OS 2 LO 50
11 GREY MAP SENS +5V 51 TAN OIL PRESS SENS
12 BLANK TPS RETURN 52 GREY TR SWITCH C
13 WHITE OIL CHANGE RESET 53 BLACK LINEAR EGR IN
14 54 YELLOW COOLANT TEMP
15 YELLOW TR SWITCH B 55 RED/BLACK GROUND
16 56 LIGHT GREEN/WHITE GROUND
17 57 PINK/BLACK FUEL INJ 3
18 PURPLE SHIFT SOL 4 58
19 59 YELLOW/BLACK SHIFT SOL 3
20 60 DARK BLUE PC SOL
21 61 RED LINEAR EGR PWR
22 BROWN EVO LO 62 BROWN/WHITE GENERATOR
23 GREY EGR +5V 63 LIGHT BLUE LINEAR EGR OUT
24 64 LIGHT BLUE/WHITE IAC SOL HI
25 ORANGE/BLACK TRANS OIL TEMP 65 ORANGE IGN MODULE
26 BROWN/WHITE CYL 4 OUT 66 BLACK TRANS OIL TEMP
27 PURPLE VSS LO 67 PINK/BLACK AIR SOL
28 LIGHT BLUE KNOCK SENS 68 DARK GREEN COOL FAN RLY
29 BLACK IAT RETURN 69
30 PURPLE CPS SENS 70 BROWN AIR PUMP
31 BLACK/WHITE TR SWITCH A 71 PURPLE H2OS 1 SIG
32 BLACK MAP SENS RETURN 72 YELLOW VSS HI IN
33 DARK BLUE/WHITE TS SENS LO 73
34 YELLOW/BLACK COOLANT LVL 74 DARK GREEN/WHITE CAN PURGE OUT
35 RED/BLACK TS SENS HI 75 BLACK/WHITE H2OS 2 HTR
36 WHITE TR SWITCH D 76 TAN/WHITE GROUND
37 77 TAN/WHITE GROUND
38 78 LIGHT BLUE/BLACK FUEL INJ 4
39 TAN/BLACK TCC SOL OUT 79 BLACK FUEL INJ 1
40 LIGHT GREEN SHIFT SOL 2 80 LIGHT GREEN/BLACK FUEL INJ 2

J2 PCM Engine

Connector description

Connector is noticeably smaller then the J1 connector and like J1 has raised numbers in the same fashion. Numbering is from 1 to 28.


Connector pin descriptions

OBD2 00-02 - PCM Connector J2
Color Function Color Function
1 ORANGE BATTERY 15 ORANGE/BLACK FTP SENS IN
2 GRAY FTP SENS +5V 16
3 GRAY CRUISE RES/ACL 17 BLACK/VIOLET FUEL LEVEL RETURN
4 18
5 19 LIGHT GREEN CRUISE MODULE
6 20
7 PURPLE FUEL LVL IN 21 GREY A/C CLUTCH
8 ORANGE BATTERY 22
9 23 PINK IGNITION
10 DARK GREEN FTP SENS IN 24
11 PURPLE CLASS 2 DATA 25 DARK GREEN/VIOLET FUEL PUMP
12 PURPLE CLASS 2 DATA 26 BROWN BPP SWITCH
13 LIGHT BLUE CRUISE CLUTCH 27
14 VIOLET FUEL VENT OUT 28 PINK CRUISE MODULE