Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual — part 196

EN(H4DOTC)(diag)-8

General Description

ENGINE (DIAGNOSTICS)

D: PREPARATION TOOL

ILLUSTRATION

TOOL NUMBER

DESCRIPTION

REMARKS

1B022XU0

SUBARU SELECT
MONITOR III KIT

Used for troubleshooting the electrical system.

499987500

CRANKSHAFT
SOCKET

Used for rotating crankshaft.

ST1B022XU0

ST-499987500

EN(H4DOTC)(diag)-9

Electrical Component Location

ENGINE (DIAGNOSTICS)

4. Electrical Component Location

A: LOCATION

1. CONTROL MODULE

(1)

Engine control module (ECM)

(3)

Delivery (test) mode connector

(4)

Data link connector

(2)

Malfunction indicator light

EN-09237

(1)

(3)

(4)

(2)

EN-06142

(1)

(2)

EN-06143

EN-06145

(3)

EN-06147

(4)

EN(H4DOTC)(diag)-10

Electrical Component Location

ENGINE (DIAGNOSTICS)

2. SENSOR

• Models without SI-DRIVE

(1)

Manifold absolute pressure sen-
sor

(4)

Knock sensor

(7)

Mass air flow and intake air tem-
perature sensor

(2)

Engine coolant temperature sen-
sor

(5)

Intake camshaft position sensor

(8)

Tumble generator valve ASSY

(3)

Electronic throttle control

(6)

Crankshaft position sensor

EN-06151

(7)

(5)

(1)

(6)

(4)

(8)

(2)

(8)

(5)

(3)

EN(H4DOTC)(diag)-11

Electrical Component Location

ENGINE (DIAGNOSTICS)

EN-01927

(1)

EN-00295

(2)

EN-01928

(3)

EN-02169

(4)

EN-01798

(5)

EN-02919

(6)

EN-06149

(7)

EN-05373

(8)