GM Service Manual Online
For 1990-2009 cars only

Automatic Transmission Component Location Table

Name

Location

Locator View

Connector End View

Group No.

1-2 Shift Solenoid Valve

In the Automatic Transmission

--

8A-202

0470265

2-3 Shift Solenoid Valve

In the Automatic Transmission

--

8A-202

0470265

3-2 Shift Solenoid Valve

In the Automatic Transmission

--

8A-202

0470265

Automatic Transmission

RH side of transmission

8A-201

8A-202

4.003

Automatic Transmission Fluid Pressure Manual Valve Position Switch

In the Automatic Transmission

--

8A-202

0470265

Brake Pressure Modulator Valve

LH side of engine compartment above wheel house

8A-201

--

0499730

    • Connector C1 (10 Cavities)

--

--

8A-202

--

Clutch Pedal Position And Cruise Control Shutoff Switch

On clutch pedal support bracket

8A-201

8A-202

0450054

Cruise Control Module

LH rear of engine compartment on cowl

8A-201

8A-202

3.887

Driver's Information Display Center

Front of overhead console

8A-201

--

--

    • Connector C2 (9 Cavities)

--

--

8A-202

--

Electronic Brake Control Module

Part of Brake Pressure Modulator Valve

--

--

--

Four Wheel Drive Indicator Switch

Center of floor console

8A-201

8A-202

0495563

Front Axle Switch

Front axle, right of differential

8A-201

8A-202

--

I/P Fuse Block

LH side of instrument panel

8A-201

8A-11

2.483

Instrument Cluster

LH side of instrument panel

8A-201 Fig. 58

8A-202 Pg. 50

9.735

Powertrain Control Module (2.2 L Engine)

RH side of engine compartment

8A-201

--

3.670

    • Connector C1 (80 Cavities)

--

--

Engine Controls Connector End Views

--

    • Connector C2 (80 Cavities)

--

--

Engine Controls Connector End Views

--

Pressure Control Solenoid Valve

In the Automatic Transmission

--

8A-202

0470265

Radio

Center of instrument panel

8A-201

--

9.650

    • Connector C2 (6 Cavities)

--

--

8A-202

--

TCC Brake And Cruise Control Release Switch

On brake pedal support bracket

8A-201

8A-202

3.887

Torque Converter Clutch Pulse Width Modulation Solenoid Valve

In the Automatic Transmission

--

8A-202

0470122

Torque Converter Clutch Solenoid Valve

In the Automatic Transmission

--

--

0470265

Transfer Case Shift Control Module

Behind center of instrument panel

8A-201

8A-202

0495563

Transmission Fluid Temperature Sensor

In the Automatic Transmission

--

--

--

Transmission Range Switch (Park/Neutral Position And Backup Lamp Switch)

LH side of automatic transmission

8A-201

--

2.698

    • Connector C1 (7 Cavities)

--

--

8A-202

--

Vehicle Control Module (4.3 L Engine)

RH side of engine compartment

8A-201

--

3.670

    • Connector C1 (32 Cavities)

--

--

6 --Engine Controls

--

    • Connector C2 (32 Cavities)

--

--

Engine Controls Connector End Views

--

    • Connector C3 (32 Cavities)

--

--

Engine Controls Connector End Views

--

    • Connector C4 (24 Cavities)

--

--

Engine Controls Connector End Views

--

    • Connector C5 (5 Cavities)

--

8A-201

Engine Controls Connector End Views

--

Vehicle Speed Sensor (With Manual Transmission, without 4WD)

RH rear of transmission

8A-201

8A-202

3.682

Vehicle Speed Sensor (With Automatic Transmission, without 4WD)

LH Rear of transmission

8A-201

8A-202

3.682

Vehicle Speed Sensor (With Four Wheel Drive)

LH Rear of Transfer Case

8A-201

8A-202

3.682

C101 (7 cavities)

Engine harness to I/P extension harness, RH side of engine compartment near VCM

8A-201

8A-202

--

C102 (15 cavities)

Engine harness to front of dash harness, LH rear of engine compartment above brake booster

8A-201

8A-202

--

C114 (2 cavities)

Front of dash harness to front axle switch extension harness, LH engine compartment near cruise control module, 4.3L, 4WD

8A-201

8A-202

--

C116 (2 cavities)

Engine harness to VSS extension harness, near C175, passes over the top of the rear of transmission,(4.3L Engine W/ A/T)

8A-201

8A-202

--

C120 (15 cavities)

Engine harness to I/P extension harness, near Powertrain Control Module on RH side of engine compartment

8A-201

8A-202

--

C175 (13 cavities)

Engine harness to transmission, RH side of transmission just forward of Catalytic Converter

8A-201

8A-202

--

C200 (23 cavities)

Front of dash harness to I/P harness, behind RH side of instrument panel

8A-201

8A-202

--

C201 (23 cavities)

I/P harness to I/P extension harness, behind RH side of instrument panel

8A-201

8A-202

--

C203 (56 cavities)

Front of dash harness to I/P harness, behind instrument panel, RH side

8A-201

8A-202

--

C209 (10 cavities)

Front of dash harness to dome lamp harness, behind upper LH side of instrument panel (Utility W/Overhead Console)

8A-201

8A-202

--

G101

LH rear of engine compartment to the left of the A/C compressor relay, 4.3 liter engine harness

8A-201

--

--

G102 (4.3 L Engine)

RH rear of engine, on head

8A-201

--

--

G103 (4.3 L Engine)

RH rear of engine, on head

8A-201

--

--

G104 (4.3 L Engine)

LH rear portion of cylinder head

8A-201

--

--

G105 (4.3 L Engine)

LH rear portion of cylinder head

8A-201

--

--

G113 (2.2 L Engine)

LH rear of engine compartment to the left of the A/C compressor relay

8A-201

--

--

G114 (2.2 L Engine)

LH rear of engine, below crankshaft position sensor

8A-201

--

--

G115 (2.2 L Engine)

LH rear of engine, below crankshaft position sensor

8A-201

--

--

G116 (2.2 L Engine)

LH side of engine below exhaust manifold, engine harness

8A-201

--

--

G132 (2.2 L Engine)

LH side of engine below exhaust manifold, engine harness

8A-201

--

--

P100

At cowl on LH rear of engine compartment

8A-201

--

--

P101

At cowl on RH rear of engine compartment

8A-201

--

--

S102 (4.3 L Engine)

Engine harness, 8 cm left of generator breakout

8A-201

--

--

S105 (2.2 Engine)

Engine harness, 12 cm left of A/C Refrigerant Pressure Sensor breakout

8A-201

--

--

S106 (2.2L Engine)

Engine harness, 8 cm from breakout to Connector C102 and oxygen sensor

8A-201

--

--

S106 (4.3L Engine)

Engine harness, 4 cm from generator breakout and toward the C104 connector

8A-201

--

--

S107 (4.3 L Engine)

Engine harness, 4 cm from C104 breakout and toward the generator breakout

8A-201

--

--

S108 (4.3 L Engine)

Engine harness, 13 cm from C102, C104 breakout and toward the connectors

8A-201

--

--

S109 (4.3 L Engine)

Engine harness, 7 cm to the right of C102, C103, and C104 breakout

8A-201

--

--

S112 (2.2 L Engine)

Engine harness, 6.5 cm toward dash from generator harness breakout

--

--

--

S129 (Automatic Transmission Only)

In the Automatic Transmission

--

--

--

S140 (2.2 L Engine)

Engine harness, 17 cm from C175 breakout

8A-201

--

--

S140 (4.3 L Engine)

Engine harness, 15 cm from C116 connector

8A-201

--

--

S212

I/P harness, 7 cm into the radio breakout

8A-201

--

--

S213

I/P harness, 4 cm left of cigarette lighter breakout

8A-201

--

--

S220

I/P harness, 6 cm into relay center breakout

8A-201

--

--

S230

Front of dash harness, 25 cm right of P100

8A-201

--

--

S231

Front of dash harness, 4 cm into clutch pedal position switch breakout

8A-201

--

--

S238

Front of dash harness, 11 cm into TCC Brake and Cruise Control Release Switch breakout

8A-201

--

--

S239

Front of dash harness, 18 cm from TCC Brake and Cruise Control Release Switch

8A-201

--

--

S241

In front-of-dash harness 6 cm to the right of the steering column breakout

8A-201

--

--

S243

Front of dash harness, 19 cm right of steering column breakout

8A-201

--

--

S246 (Utility)

Front of dash harness, 37 cm right of steering column breakout

8A-201

--

--

S259

Front of dash harness, 20 cm from C201

8A-201

--

--

S266

I/P harness, on breakout to instrument cluster, 8.5 cm from breakout

8A-201

--

--

S298

I/P Harness, 6 cm into the breakout to the Heater and A/C Controller

8A-201

--

--