Read Diagnostic Trouble Code (Dtc) - Subaru LEGACY 2003 Service Manual

8. Read Diagnostic Trouble
Code (DTC)
A: OPERATION
1. WITHOUT SUBARU SELECT MONITOR
1) Take out diagnosis connector from side of driv-
er's seat heater unit.
( 2 )
(1) Diagnosis connector
(2) Diagnosis terminal
(3) 8 terminal
(4) 5 terminal
Example of DTC indication
DTC: 21
1
ON
1.2 sec
OFF
DTC: 22,31
1
1
ON
OFF
Start code
2. WITH SUBARU SELECT MONITOR
Refer to SUBARU SELECT MONITOR for informa-
tion about how to obtain and understand diagnostic
trouble codes (DTCs). <Ref. to VDC-20, Subaru
Select Monitor.>

READ DIAGNOSTIC TROUBLE CODE (DTC)

( 1 )
( 3 )
( 4 )
VDC00136
1 2
1.0 sec 1.2 sec 1.2 sec
0.3 sec 0.3 sec
DTC: 21
2
DTC: 22
2) Turn ignition switch OFF.
3) Connect diagnosis connector terminal 8 to diag-
nosis terminal.
4) Turn ignition switch ON.
5) ABS warning light is set in the diagnostic mode
and blinks to identify diagnostic trouble code
(DTC).
6) After the start code (11) is shown, the diagnostic
trouble codes (DTCs) will be shown in order of the
last information first.
These repeat for a maximum of 5 minutes.
NOTE:
• When there are no diagnostic trouble codes
(DTCs) in memory, only the start code (11) is
shown.
• When on-board diagnosis of the VDC control
module detects a problem, the information (up to a
maximum of three) will be stored in the EEP ROM
as a diagnostic trouble code (DTC). When there
are more than three, the most recent three will be
stored. (Stored codes will stay in memory until they
are cleared.)
1 1 1
1.0 sec
0.3 sec
Start code
2 3
VDC-23
VDC (DIAGNOSTICS)
2 1
DTC: 21
1 1
Start code
DTC: 31
1
VDC00137