GM Service Manual Online
For 1990-2009 cars only

4T80-E Gcar, A/T Controls Component Location Table

Name

Location

Locator View

Connector End View

Group No.

1-2 Shift Solenoid Valve

In transmission valve body

7 - Automatic Transmission Automatic Transmission Electronic Component Views

7 - Automatic Transmission

--

2-3 Shift Solenoid Valve

In transmission valve body

7 - Automatic Transmission Automatic Transmission Electronic Component Views

7 - Automatic Transmission

--

Automatic Transmission Fluid Pressure Manual Valve Position Switch (TFP Val. Position Sw.)

In transmission valve body

7 - Automatic Transmission Automatic Transmission Electronic Component Views

7 - Automatic Transmission

--

Automatic Transmission Fluid Temperature (TFT) Sensor

In transmission valve body

7 - Automatic Transmission Automatic Transmission Electronic Component Views

7 - Automatic Transmission

--

Automatic Transmission Input (Shaft) Speed (A/T ISS) Sensor

In transmission valve body

7 - Automatic Transmission Automatic Transmission Electronic Component Views

7 - Automatic Transmission

--

Brake Switch

Below LH side of IP, above brake pedal

8A-201-31

Fig. 60

8A-202-16

--

Shift Mode (Driver Select Shift) Switch

In center console, on shift handle

--

--

--

IP Fuse Block

Behind LH side of IP

8A-201-22

Fig. 42

8A-11-0

--

Powertrain Control Module (PCM)

Behind LH side of IP

6 - Engine Controls

--

--

C1 (80 cavities)

Body main harness to PCM, behind LH side of IP

--

6 - Engine Controls

--

C2 (80 cavities)

Body main harness to PCM, behind LH side of IP

--

6 - Engine Controls

--

Pressure Control Solenoid Valve (PC SOL. Valve)

In transmission valve body

7 - Automatic Transmission Automatic Transmission Electronic Component Views

7 - Automatic Transmission

--

Torque Converter Clutch Pulse Width Modulation Solenoid (TCC PWM Sol.) Valve

In transmission valve body

7 - Automatic Transmission Automatic Transmission Electronic Component Views

7 - Automatic Transmission

--

Vehicle Speed Sensor (VSS)

Lower RH rear of engine compartment on transmission

7 - Automatic Transmission Automatic Transmission Electronic Component Views

7 - Automatic Transmission

--

C100 (7 cavities)

Engine harness to transmission, top LH rear of engine beside transmission

7 - Automatic Transmission

7 - Automatic Transmission

--

C101 (78 cavities)

Engine to body main harness, center rear of engine compartment

8A - 201 - 7

Fig. 15

8A - 202 - 1

--

C102 (30 cavities)

Engine to body main harness, center rear of engine compartment

8A - 201 - 7

Fig. 15

8A - 202 - 5

--

C200 (116 cavities)

IP to body main harness, behind center of IP, right of steering column

8A - 201 - 33

Fig. 43

8A - 202 - 8

--

C220 (6 cavities)

IP to console harness, under center console trim plate

8A - 201 - 33

Fig. 62

--

--

C300 (16 cavities)

Console to console jumper harness, under console near shifter

8A - 201 - 33

Fig. 62

--

--

P100

LH rear of engine compartment, behind strut tower

8A - 201 - 6

Fig. 14

--

--

P101

RH engine compartment

8A - 201 - 2

Fig. 5

--

--

P107

RH center front of dash

8A - 201 - 31

Fig. 59

--

--

S118

Engine harness, about 10 cm from transmission connector

--

--

--

S127

Engine harness, about 10 cm from transmission connector

--

--

--

S204

IP harness, behind center IP, about 6.5 cm from connector C200 breakout

8A - 201 - 23

Fig. 43

--

--

S205

Body main harness, about 38 cm from P500 breakout

8A - 201 - 22

Fig. 42

--

--

S211

Body main harness, about 15 cm from turn signal flasher breakout

8A - 201 - 29

Fig. 54

--

--

S245

Body main harness, about 38 cm from Powertrain Control Module (PCM) connectors

8A - 201 - 29

Fig. 54

--

--

S307

Body main harness, about 29 cm from P500 breakout

8A - 201 - 22 Fig. 42

--

--

S316

Console harness, under console, about 22 cm from connector C300

8A - 201 - 33

Fig. 62

--

--

S317

Console jumper harness, under console about 10 cm from driver shift select switch connector

8A - 201 - 33

Fig. 62

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