Subaru Legacy III (2000-2003 year). Manual - part 1005

IM-4

IMMOBILIZER (DIAGNOSTICS)

GENERAL DESCRIPTION

B: PREPARATION TOOL

1. SPECIAL TOOLS

2. GENERAL TOOLS

ILLUSTRATION

TOOL NUMBER

DESCRIPTION

REMARKS

24082AA210

(Newly adopted tool)

CARTRIDGE

Troubleshooting for electrical systems.

22771AA030

SELECT MONITOR 
KIT

Troubleshooting for electrical systems.
• English:
22771AA030 (Without printer)
• German:
22771AA070 (Without printer)
• French:
22771AA080 (Without printer)
• Spanish:
22771AA090 (Without printer)

TOOL NAME

REMARKS

Circuit Tester

Used for measuring resistance, voltage and ampere.

ST24082AA210

ST22771AA030

IM-5

IMMOBILIZER (DIAGNOSTICS)

ELECTRICAL COMPONENTS LOCATION

3. Electrical Components Location

A: LOCATION

NOTE:
IMM ECM location for RHD model is symmetrically opposite.

(1) Antenna

(3) Immobilizer control module (IMM 

ECM)

(2) Immobilizer indicator light (LED 

bulb)

(4) Transponder

IM-00040

( 1 )

( 2 )

( 3 )

( 4 )

   

   

IM-6

IMMOBILIZER (DIAGNOSTICS)

IMMOBILIZER CONTROL MODULE I/O SIGNAL

4. Immobilizer Control Module I/O Signal

A: SCHEMATIC

<Ref. to WI-236, SCHEMATIC, Immobilizer System.>

IM-7

IMMOBILIZER (DIAGNOSTICS)

SUBARU SELECT MONITOR

5. Subaru Select Monitor

A: OPERATION

1. HOW TO USE SUBARU SELECT MONI-
TOR

1) Prepare the Subaru Select Monitor kit.

2) Connect the diagnosis cable to Subaru Select
Monitor.
3) Insert the cartridge into Subaru Select Monitor.

4) Connect the Subaru Select Monitor to data link
connector.

(1) Data link connector (A) located in the lower
portion of the instrument panel (on driver's side).

(2) Connect the diagnosis cable to data link
connector.

CAUTION:
Do not connect the scan tools except for 
Subaru Select Monitor.

5) Turn the ignition switch to ON (engine OFF), and
then Subaru Select Monitor switch to ON.

6) Using the Subaru Select Monitor, call up any
DTCs and various data, and then record them.

2. READ DIAGNOSTIC TROUBLE CODE 
(DTC) FOR ENGINE.

Refer to Read Diagnostic Trouble Code for infor-
mation about how to indicate DTC.<Ref. to IM-8,
Read Diagnostic Trouble Code (DTC).>

3. INTERFACE CHECK

NOTE:
The communication line between ECM and IMM
ECM can be checked in «System Operation Check
Mode». This is referred to as “interface check”.
1) Connect the Subaru Select Monitor.
2) Set the «System Operation Check Mode» menu
display screen, and then select «Immobilizer Sys-
tem».
3) Start the interface check.
4) Does “Communication Line not Shorted” appear
on screen?
If “YES”. Go to step 5).
If “NO”. Go to step 6).
5) After diagnostic results, it is determined that the
short circuit is not a diagnostic item. This completes
interface check.
6) If a problem is detected, repair. <Ref. to IM-18,
DTC P1572 IMM CIRCUIT FAILURE (EXCEPT
ANTENNA CIRCUIT), Diagnostic Procedure with
Trouble Code (DTC).>

CC-00028

ST

CC-00029

CC-00076

( A )

(1) Power switch

CC-00045

( 1 )