Inspection Procedure
WARNING: This page is about a different car, the 2007 Lexus GS 350. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK FOR DTC
- Delete the DTCs.
HINT:
After all DTCs are cleared, check if the trouble occurs again 5 seconds after the engine switch is turned on (IG).
- Check for DTCs again.
OK:
No DTC is output.
NG: GO TO DTC CHART
OK: Go to next step
- Delete the DTCs.
- CHECK BASIC FUNCTION
- When the key is inside the vehicle and the shift lever position is in P, check that depressing the brake pedal causes the engine switch indicator to illuminate green.
Result
RESULT CHARTResult Proceed to Indicator Illuminates green A Engine switch indicator circuit is normal but indicator does not illuminate green B Room oscillator recognizes key but indicator does not illuminate green C
B: GO TO ROOM OSCILLATOR DOES NOT RECOGNIZE KEY
C: GO TO ENGINE SWITCH INDICATOR CIRCUIT
A: REPLACE POWER SOURCE CONTROL ECU
- When the key is inside the vehicle and the shift lever position is in P, check that depressing the brake pedal causes the engine switch indicator to illuminate green.