Basic Operation Of Self-Diagnosis System; No Trouble; Fail-Safe Function - Subaru SVX 1992 Manual

2-7 Inn7031 FUEL INJECTION SYSTEM
3. BASIC OPERATION OF SELF-DIAGNOSIS SYSTEM
No TROUBLE '
Mode Read memory terminal Test mode terminal Condition CHECK ENGINE light
Ignition switch ON
ON
U-check X X
(Engine OFF)
Engine ON OFF
Ignition switch ON
Read memory 0 X
(Engine OFF)
Blink
Engine ON
Ignition switch ON
ON
0
(Engine OFF)
D-check X
Engine ON
Vehicle specificaion
* code -> Blink
Ignition switch ON
ON
0 0
(Engine OFF)
Clear memory
Engine ON
Vehicle specification
code - Blink
TROUBLE
Mode
Read memory terminal Test mode terminal Condition CHECK ENGINE light
U-check X
X Ignition switch ON ON
Read memory 0 X
Ignition switch ON
(Engine OFF)
Trouble code
(memory)
Engine ON ON
D-check X
0
Engine ON Trouble code**
Clear memory 0 0 Engine ON Trouble code**
* When the engine operates at a speed greater than reached, the check engine light blinks .
2,000 rpm for more than 40 seconds, the check ** When the engine operates at a speed greater than
engine light blinks . However, when all check items 2,000 rpm for more than 40 seconds, a trouble code
check out "O .K .',' even before the 40 seconds is is emitted .
4. FAIL-SAFE FUNCTION
For the part which has been judged faulty in the self-
diagnosis, the ECU generates the associated pseudo
signal (only when convertible to electric signal) and
carries out the computational processing . In this fash-
ion, the fail-safe function is performed.
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