Originally Posted by Rudy R
how do I reset the ecu?
what is an AUTOBOOK? is it a hand held computer?
Presumption: You have a Land Rover. You have to reset the ecu. A little history first.
About 1996 and later, the Land Rover (and most modern autombiles and trucks) adopted a standard called OBD II (or two). OBD II was implemented and allows for an automotive technican to get an more informed idea of what is going on inside the engine, dynamically, using a codereader or a laptop. You see a bunch of error codes and based on what kind, you can make an more informed guess of what is working/ not working/ not working well.
Now for the inside deal, fellow LRO member. There are codes that can be universally read by a OBD2 codereader and there are factory codes that only a Land Rover codereader can decipher. (For example, with a Testbook or Autobook, it can tell you if you have a defective thermostat awhile a stock OBD2 would not know how to read that code. It is part of what is called manufacturers codes.)
What can you do? Well, you can try to buy a testbook. It is an EXPENSIVE tool.
Or you can find a shop with one and then read off those interesting and hidden codes and then reset your ECU.
Can you reset your ECU? Yes. It helps if it throws a code first. Most if not all codereaders will not reset a ECU unless the Check Engine Light is first on.
Any more questions? Here is some reference on the Net.
Adam in NYC