Inspection Procedure

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: When the seat belt control ECU is replaced with a new one, Initialization must be performed (See INITIALIZATION ).

CHECK DTC OUTPUT (CAN COMMUNICATION SYSTEM)
1. Clear the DTC s (See DTC CHECK / CLEAR )
2. Recheck for DTC s
  OK: DTC U0122 is not output.
NG: GO TO CAN COMMUNICATION SYSTEM (See HOW TO PROCEED WITH TROUBLESHOOTING )

OK: Go to next Step
CHECK DTC OUTPUT (VEHICLE STABILITY CONTROL SYSTEM)
1. Clear the DTC s (See DTC CHECK / CLEAR )
2. Recheck for DTC s
  OK: DTC is not output.
NG: GO TO VEHICLE STABILITY CONTROL SYSTEM (See HOW TO PROCEED WITH TROUBLESHOOTING )

OK: Go to next Step
CHECK DTC OUTPUT (PRE-COLLISION SYSTEM)
1. Clear the DTC s (See DTC CHECK / CLEAR )
2. Recheck for DTC s
  OK: DTC B2060 is not output.
NG: REPLACE SEAT BELT CONTROL ECU (See SEAT BELT CONTROL ECU )

OK: CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION) (See HOW TO PROCEED WITH TROUBLESHOOTING )