This is a TRAC and ABS system technical training article from Lexus, it shows the Toyota Supra (and Camry) Traction Control System (TRAC), ABS system and how they all work together with the ECU’s.
These documents can give further troubleshooting steps to the service manual and give a better understanding of the system in general.
Thought I’d had these posted but realised I hadn’t, this is the 2005 IS300 workshop manual pages. These come in handy for the VVTi guys due to the VVTi head torque and specs, most apply to the 2JZGE and 2JZGTE VVTi figures.
Most of these documents are applicable to the J-SPEC and Europe-SPEC supras. There might be differences to driving side, wiring and some features and functions.
This is a guide to cleaning the VVTi Oil Control Valve (OCV) and filter on the 2JZGTE or 2JZGE VVTi engine. This is the valve the controls the oil pressure sent to the VVTi intake cam gear assembly. This can be done as preventive maintenance, to replace with new components or if there are error codes. I’ve seen various forums that mention code 59 for supra and P1329 for IS300/Aristo which may be cleared by cleaning the OCV if there are issues with the VVTi system.
This article is to help out with the troubleshooting of the ETCS-i (Electronic Throttle Control System intelligence)also otherwise known as the DBW (Drive By Wire) system found on the 2JZ GE and GTE VVTi, this article is aimed at the supra but may also to apply to the JZS161 Aristo or any other ETCS-i equipped Toyota/Lexus vehicle.
I thought I’d start a page with pictures of anything VVTi related such as engines and parts for people to reference.I will update whenever I have any further pictures. Thanks to the various resources for taking some of these pictures.
If anyone has any they would like to share please contact me using the contact form below
Some more pictures below;
While I had a stock engine and ECU I really strugged to find much information or tools to scan the 2JZGTE VVTi engine in my supra, standard OBDII tools did not seem to work. Some guys had tried and failed or got mixed results. I did find a guy in the UK that found out how, but it seemed one of his friends was a Toyota Mechanic and had access to an expensive scanner tool which wasn’t an option for me.
I’ve hopefully now found some basic information for the Toyota Supra 2JZGTE VVTi ECU;
-Is not OBDII compliant, it uses an JOBD compliant protocol as it’s a Japanese ECU –
-Uses a OBDII connector but requires a scan tool with correct software to read the correct protocol which is ISO 14230
It now seems like there is a cheap solution for reading the protocol; Thanks to Muzzytt on supraforums.com.au and Konrad on mkivsupra.net for sharing this information around on the forums.