Friday, December 31, 2004 - 09:20 pm, by: Peter Nitschke
Toyota Soarer / SC400 Cruise Control Diagnostics Kindly provided by Harry Lemmens
This document has been prepared to show how to do simple diagnostics on your vehicle. It shows how to run the Air Conditioning diagnostics on a Soarer/Lexus SC400. The diagnostics are relatively general, and as such, apply to many different vehicles marketed by Toyota and Lexus.
The same fault codes are often shared by the 2.5 litre twin turbo, and the 3 litre normally aspirated SC300. If there is time, it may also include the fault codes from the Japanese manual, although translation of these will be left up to the end user, as I cannot read Japanese
Most of the following has been lifted from the "Soarer Bible". (And mostly from the Lexus SC300/SC400 English manual
If you need more specific information, you could ask on the relevant club forum, you could get yourself a copy of the relevant CD’s containing the information you need, or you might purchase the appropriate workshop manuals from your local Toyota or Lexus dealership. (Genuine manuals are easier to use!) The Soarer Bible CD can be purchased from several sources, notably Jeff Harper (http://www.f1kits.com), or from http://www.tifbitz.co.uk for our mates in the United Kingdom.
To remove the 108 kph factory limit applied to Japanese Soarers, follow this tutorial. (Involves the addition of one link to the Cruise Control ECU.)
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