Saturn Transmission. Manual - part 4

J2 Connector Pinout

Figure 24

Note: Connector shown above is for models up to and including 1994

19

AUTOMATIC TRANSMISSION SERVICE GROUP

Technical Service Information

J3 Connector Pinout

Note: Connector shown above is for models up to and including 1994

20

AUTOMATIC TRANSMISSION SERVICE GROUP

Technical Service Information

Figure 25

.

.

.

.

.

.

Battery Power

Ignition Power

MLP

ACTUATOR

4TH

ACTUATOR

TCC

ACTUATOR

2ND/REV

ACTUATOR

3RD

ACTUATOR

TRANSAXLE 
ACTUATORS

4TH ACTUATOR

GROUND

MLP ACTUATOR

GROUND

3RD ACTUATOR

GROUND

2ND/REV ACT.

GROUND

TCC ACTUATOR

GROUND

CLAMP HLD ACT

1991-1992 ONLY

TRANS ENABLE

RELAY GROUND

1991-1993 ONLY

UNDERHOOD

JUNCTION BOX

7.5 A

FUSES

TRANS MASTER

ENABLE RELAY

PCM

F1

Terminal numbers

in J3 Connector

on PCM

E10

F3

F2

E14

E13

E12

F

D

B

H

K

G

C

A

J

E

Terminal Letters Stamped on

Connector Plate in VB

MLP

4TH

3RD

2ND

TCC

HLD

E

F

16

15
14
13
12
11

10

9
8
7
6
5
4
3
2
1

J3

CONNECTOR

UNDERHOOD

JUNCTION BOX

K

J

H

G

F

E D

C

B

A

TRANSAXLE/ACTUATOR

ELECTRICAL CONNECTOR

HLD*

TCC

2nd

4th
LP

3rd

Trans Master

Enable Relay

* CLAMP TRANS HOLD ACTUATORS:

On 1991 and 1992 vehicles, the amount of current required to energize an actuator is greater than the amount of 
current required to HOLD an actuator in the closed position. Hold Mode is a feature built into the PCM that reduces 
current draw of the 2nd, 3rd, and 4th actuators when these clutches are being held off.

*

PCM/Actuators Wiring Diagram

1

2

3

4

1

2

3

4

F

E

Figure 26

21

AUTOMATIC TRANSMISSION SERVICE GROUP

Technical Service Information

Fuse panel shown

is for vehicles up

to 1994

J3

 CONNECTOR

E

F

E

F

16
15
14
13
12
11

10

9
8
7
6
5
4

3
2
1

A

B

C

D

F14

E11

E8

E7

E6

E9

A

B

F4

F15

TCC-A

TCC-B

12V

12V

12V

12V

TEMP. +

TEMP -

E15

E16

A

B

TSS +

TSS -

PWR GND

PWR GND

E1

E2

PCM

J3 Connector

J3 

Connector

*5 ohm 

Wire

1991-1992 

PATTERN SELECT

SWITCH

TRANS. FLUID

TEMP. SENSOR

TURBINE SPEED

SENSOR

1

2

3

TCC HOLD

CIRCUIT*

PATTERN SELECT

SWITCH

TRANS. FLUID TEMP./

TURBINE SHAFT SENSOR

A

TAN/WHT

B

ORN/BLK

TFT

TSS

A

GRY/RED

B

DK BLU/WHT

Figure 27

Pattern Select Switch/TFT/TSS  Wiring Diagram

1

2

3

A

B

C

D

BLK/WHT

YELLOW

GREY

WHITE

TAN/WHT

ORN/BLK

GRY/RED

DK BLU/WHT

22

AUTOMATIC TRANSMISSION SERVICE GROUP

Technical Service Information

Schematic shown

is for vehicles up

to 1994