Circuit Description
WARNING: This page is about a different car, the 2003 Lexus IS 300 and 2002 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.
This DTC is output when communication stops between A/C ECU and body ECU. See Figure.
Detecting Condition - No communication from the ECU for more than 10 seconds.
Trouble Area
- A/C ECU.
- Wiring Harness.