GS 400 V8-4.0L (1UZ-FE) (1999)
Step 3
INSPECTION PROCEDURE
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.
General L Terminal Circuit (W/ DRL Vehicle Only)
CIRCUIT DESCRIPTION
Body No.2 ECU receives the generator L signal from ECM through communication and outputs it to the Day time running light relay.
Day time running light relay judges whether the engine rotates or not with this generator L signal and makes the Day time running light turn ON and
OFF.
WIRING DIAGRAM