GM Service Manual Online
For 1990-2009 cars only

A/T Controls Component Location Table

Name

Location

Locator View

Connector End View

Group No.

1-2 Shift Solenoid Valve

In transmission valve body

Automatic Transmission Electronic Component Views

7 - Automatic Transmission

--

2-3 Shift Solenoid Valve

In transmission valve body

Automatic Transmission Electronic Component Views

7 - Automatic Transmission

--

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

In transmission valve body

Automatic Transmission Electronic Component Views

7 - Automatic Transmission

--

Automatic Transmission Fluid Temperature (TFT) Sensor

In transmission valve body

Automatic Transmission Electronic Component Views

7 - Automatic Transmission

--

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

In transmission valve body

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

--

Engine Compartment Fuse/Relay Center

Forward of LH front strut tower

8A-201-7

Fig. 15

8A-11-0

--

Powertrain control Module (PCM)

LH front corner of engine compartment, under air cleaner housing

6 - Engine Controls

--

C1 (80 cavities)

Engine harness to PCM, LH front corner of engine compartment, under air cleaner housing

6 - Engine Controls

--

C2 (80 cavities)

Engine harness to PCM, LH front corner of engine compartment, under air cleaner housing

6 - Engine Controls

--

Pressure Control Solenoid Valve (PC SOL. Valve)

In transmission valve body

Automatic Transmission Electronic Component Views

7 - Automatic Transmission

--

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

In transmission valve body

Automatic Transmission Electronic Component Views

7 - Automatic Transmission

--

Trunk Compartment Fuse Block

In trunk, attached to electronics bay

8A-201-34

Fig. 66

8A-202-8

--

Vehicle Speed Sensor (VSS)

Lower RH rear of engine on transmission

Automatic Transmission Electronic Component Views

7 - Automatic Transmission

--

C101 (23 cavities)

Body main harness, LH side of engine compartment, on wheelhouse

8A-201-7

Fig. 15

8A-202-0

--

C106 (14 cavities)

Engine harness to transmission, LH front of transmission

7 - Automatic Transmission

7 - Automatic Transmission

--

P101

LH rear corner of engine, on cowl

8A-201-29

Fig. 56

--

--

S126

Engine harness, top LH side of engine about 10.5 cm from connector C127 breakout

8A-201-18

Fig. 35

--

--

S318

Body main harness about 18 cm (Deville/Concours), or about 31 cm (Eldorado/Seville) from sensing and diagnostic module (SDM)

8A-201-38

Fig. 73

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