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4-3 (T4AO)
STEERING SYSTEM
4. Troubleshooting Chart with Trouble Code - Only for Electroni-
cally Controlled Power Steering
A: TROUBLE CODE "VF" - POWER SUPPLY SYSTEM OR LAMP WIRING IS FAULTY
Diagnosis
Faulty lamp wiring
Faulty power supply system
Faulty ECU
1 .
Check warning lamp wiring ("(D" side)] wiring .
OK
2 .
Check ECU power supply .
OK
Check ECU connector terminals for poor contact .
OK
Replace ECU .
Not OK
Not OK
Not OK
84
Symptom
Warning lamp does not go out .
Repair or replace wiring .
3 .
Check harness between ECU and F/B (fuse
block) .
Repair ECU connector terminals .
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Troubleshooting
