Subaru SVX 1992 Manual page 818

4-3 [T4BO) STEERING SYSTEM
B: TROUBLE CODE "WF" - FAULTY WARNING LAMP OR HARNESS
Diagnosis
" Faulty D-check and read-memory harnesses
" Faulty power supply or GND circuit .
+ Faulty lamp or harness
Faulty ECU
1 . Check D-check and read-memory harnesses .
OK
Check ECU power supply.
(Refer to [T4A0] .)
* OK
2 . Check warning lamp system .
OK
Check ECU connector terminals for poor contact .
OK
Replace ECU .
Symptom
Warning lamp remains off during diagnosis.
Not OK
-~ Repair or replace harness(es) .
Not OK
Check harness.
Not OK -
Repair or replace harness .
Not OK
Repair ECU connector/terminal .
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