Diagnostic Trouble Code Chart

WARNING: This page is about a different car, the 2004 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

while the climate control seat is operated, if the indicator of the climate control switch blinks in any of the patterns shown in the illustration, the climate control ECU will enter fail-safe mode.

Fig 1: Identifying Blinking Pattern

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

After identifying the blinking pattern, troubleshoot according to the flow chart below.

Fig 2: Diagnostic Trouble Code Chart