Subaru Legacy 2003 Service Manual page 1847

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ENGINE (DIAGNOSTICS)

• Superior startability and warm-up perfor-

mance in cold weather since compensation is

made for coolant and intake air temperature.

3. AUTOMATIC TRANSMISSION AND

ELECTRONIC-HYDRAULIC CONTROL SYS-

The electronic-hydraulic control system consists of

various sensors and switches, a transmission con-

trol module (TCM) and the hydraulic controller in-

cluding solenoid valves. The system controls the

D: PREPARATION TOOL

ILLUSTRATION

ST24082AA210

ST22771AA030

GENERAL DESCRIPTION

(Newly adopted

SELECT MONI-

EN(H4DOSTC)-8

transmission proper including shift control, lock-up

control, overrunning clutch control, line pressure

control and shift timing control. It also controls the

AWD transfer clutch. In other words, the system

detects various operating conditions from various

input signals and sends output signals to shift sole-

noids 1, 2 and low clutch timing solenoid and 2-4

brake timing solenoid, line pressure duty solenoid,

lock-up duty solenoid, transfer duty solenoid and 2-

4 brake duty solenoid (a total of eight solenoids).

Troubleshooting for electrical systems.

• English: 22771AA030 (Without printer)

• German: 22771AA070 (Without printer)

• French: 22771AA080

(Without printer)

• Spanish: 22771AA090 (Without printer)

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