Subaru Legacy IV (2008 year). Service manual — part 748

5AT(diag)-7

General Description

AUTOMATIC TRANSMISSION (DIAGNOSTICS)

C: PREPARATION TOOL

1. SPECIAL TOOL

2. GENERAL TOOL

ILLUSTRATION

TOOL NUMBER

DESCRIPTION

REMARKS

1B022XU0

SUBARU SELECT
MONITOR III KIT

Used for troubleshooting the electrical system.

TOOL NAME

REMARKS

Circuit tester

Used for measuring resistance, voltage and current.

Oscilloscope

Used for measuring the sensor.

ST1B022XU0

5AT(diag)-8

Electrical Component Location

AUTOMATIC TRANSMISSION (DIAGNOSTICS)

4. Electrical Component Location

A: LOCATION

1. CONTROL MODULE

(1)

Engine control module (ECM)

(3)

Transmission control module
(TCM)

(4)

Data link connector

(2)

AT OIL TEMP light (AT warning
light)

(5)

Body integrated unit

AT-02049

(1)

(3)

(4) (2)

(5)

5AT(diag)-9

Electrical Component Location

AUTOMATIC TRANSMISSION (DIAGNOSTICS)

(1)

AT-02051

AT-03759

(2)

AT-02053

(3)

(4)

AT-02052

AT-04405

(5)

5AT(diag)-10

Electrical Component Location

AUTOMATIC TRANSMISSION (DIAGNOSTICS)

2. SENSOR

(1)

Accelerator pedal position sensor

(4)

Rear vehicle speed sensor

(6)

ATF temperature sensor

(2)

Front vehicle speed sensor

(5)

Turbine speed sensor 1

(7)

Turbine speed sensor 2

(3)

Inhibitor

switch

(6)

(3),(5),(7)

(2)

(4)

AT-04263

(1)