LS 460 RWD V8-4.6L (1UR-FSE) (2010)
Repair/Removal and Replacement/Steering Wheel/Removal
OK -- Continue to next step.
6. CHECK STEERING PAD SWITCH ASSEMBLY WITH MODULATOR (OPERATION)
(a) Temporarily replace the steering pad switch with modulator with a new or normally functioning one See: Steering and
Suspension/Steering/Steering Wheel/Service and Repair/Removal and Replacement/Steering Wheel/Removal.
(b) Check that the vehicle horns operate normally.
OK:
Vehicle horns operate normally.
NG -- REPLACE FRONT LIGHT ECU (FRONT CONTROLLER)
OK -- END (STEERING PAD SWITCH ASSEMBLY WITH MODULATOR IS FAULTY)
Problem Symptoms Table
HORN: HORN SYSTEM: PROBLEM SYMPTOMS TABLE
HINT
*
Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order
of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they
are listed. Replace parts as necessary.
*
Problem symptoms may occur if the electric power control system's functions malfunction. Follow the HOW TO PROCEED
WITH TROUBLESHOOTING procedures.