Inspection Procedure

WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

In case of using the LEXUS hand-held tester, start the inspection from step 1 and in case of not using the LEXUS hand-held tester, start from step 2.

Check rear seat control switch using LEXUS hand-held tester.

PREPARATION:

Connect the LEXUS hand-held tester to the DLC3.

CHECK:

Check that the rear seat control switch using DATA LIST.

OK:

Rear seat control switch

SWITCH NAME

Switch name (Tester display)	No pressing	Pressing
Passenger seat return switch Full front
Passenger seat return switch Return	OFF	ON
Rear RH seat slide switch Back side (RR HDRST SW DOWN)	OFF	ON
Rear RH seat headrest switch UP side (RR HDRST SW UP)	OFF	ON
Rear RH seat headrest switch DOWN side (RR HDRST SW DOWN)	OFF	ON
Rear RH seat neckrest switch Front side (RR NCRST SW Fr)	OFF	ON
Rear RH seat neckrest switch Rear side (RR NCRST SW Rr)	OFF	ON
Rear RH vibration seat switch START (RR REF START SW)	OFF	ON
Rear RH vibration seat switch STOP (RR REF STOP SW)	OFF	ON
Rear LH seat slide switch Back side (RL SLIDE SW DOWN)	OFF	ON
Rear LH seat headrest switch UP side (RL HDRST SW UP)	OFF	ON
Rear LH seat headrest switch DOWN side (RL HDRST SW DOWN)	OFF	ON
Rear LH seat neckrest switch Front side (RL NCRST SW Fr)	OFF	ON
Rear LH seat neckrest switch Rear side (RL NCRST SW Rr)	OFF	ON
Rear LH vibration seat switch START (RL REF START SW)	OFF	ON
Rear LH vibration seat switch STOP (RL REF STOP SW)	OFF	ON

OK : Proceed to next circuit inspection shown on problem symptom table (See PROBLEM SYMPTOMS TABLE ).
NG : Replace rear seat control switch (See DISASSEMBLY ).