Seat Vibration System LIN Communication Malfunction: Description

WARNING: This page is about a different car, the 2008 Lexus LS 600hL. However, it is still accessible from the selected car via links, so may be relevant.

The seat vibrator module receives power from the battery, and operates the seat vibrator. Also, the seat vibrator module and seat vibrator switch are controlled through communication signals. If an error is detected, all system operations stop and only SW1 can be operated (all other switches cannot be operated). After the error is corrected, the system enters stop mode.

DTC DETECTION CONDITION CHART

Blinking Area	Detection Condition / Cause	Display
LED6 blinks	Communication malfunction between seat vibrator switch and seat vibrator module Abnormal data from seat vibrator switch or seat vibrator module continues for 5 seconds	LED blinks in standby mode All LEDs other than LED1 are off
LED7 blinks	Malfunction in ECU power supply's IG voltage Condition that IG voltage is 9 V or less, or 16 V or more continues for 2 seconds	LED blinks in standby mode All LEDs other than LED1 are off