the following procedure may help in resetting the Navigation System. 2. 5. 1. Follow the procedures in this bulletin to reset a vehicle Immobilizer or Smart Key system. You should check it out. Petrol Engine, Dual Cab. Some Toyota Lexus vehicles may exhibit a Navigation (Audio unit) system rebooting condition. When ever i needed to reset the ecu on my corolla i just pulled the neg off the bat,i knew what the code was that was bringing on the mil light and that by resetting it wasnt going to do any damage,just the light wasn't annoying me till i got the part i needed. Once the system is reset, all previously registered keys will be erased. This led me to believe that the TPS relearn procedure requires you to hold the accelerator pedal down and release it multiple times in intervals until it has learned the operating range. I don't know if he really reset it, because from what I've read you've got to leave the battery disconnected for about an hour. The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master keys are lost. Unplug all cables connected to the ECU. 89-95 Toyota Pickup/Hilux. There is a procedure, I'll get to that in a minute. Yesterday I installed 2x new Ignition Coil which I purchase from EBAY Australia and NO … Unplug the battery. 1. 1 x Master key coded for the ECU above (SCRAP-KEY) (scrapyards usually sell these items together) 1 x New blank remote key cut for your VIN. Otherwise, it will just come on again. The pump is factory tuned with its correction resistors to match the ECU outputs. surely the camshaft and crank shaft sensors do have some marks. The correct procedure to remove the -ve terminal is to prevent sparking/arcing/surging of power when you reconnect the terminal. Remove glove compartment. My question is Does my vehicle have a ECU installed? I can't see how the ECU does any 'learning' with its very basic EFI system, it doesn't have any means to adjust anything or 'tune' the motor as you drive. 2. Remove ECU protection plastic by pulling it outwards. Toyota's ECU will be able to relearn after being reset(or change battery outside) ... he went to SC ask for reset ECU but been refuse unless give they test drive 112km. NOTE This condition may be due to an errant data broadcast by Toyota's traffic and weather data service provider. You can't just clear the code by disconnecting the battery. 3. 4. This can be a dodgy ECU, or radar sensor, or according to a lot of reports, a simple fix by 'rebooting/resetting' the system. Depends on what year the toyota is, 01-03 immobilizers are most commonly inside the engine ecu. My vehicle is Toyota Hilux Model: RZN149R-PRMDKQ, Engine: 3RZ - FE 2694 CC, 1997 - 2005. ECU, Reset, Flash, or Replace? Generally if the ABS light is on, your ECU is trying to tell you it thinks you have a problem. Its just does its thing, and if anything electronic dosn't meet with its approval you get a fault code light. I cannot verify that this made the difference as I cleaned the throttle-body while also doing this. if it is diesel engine also the fuel pump has mark too. 1) Confirm the navigation System is rebooting when the ignition is turned on He said he reset the ECU and it did the same thing. Dealers do not have the ability to reset these and will need to be replaced if all the keys are lost. (NEW-KEY) PROCEDURE: A) REPLACING ECU AND TRANSPONDER. Disconnecting the battery will do this, but will be a royal pain resetting all the tech inside back to personal settings. That is why I wanted to reset the ECU and see if it works. SOURCE: patrol toyota hilux 2000 how to fix timming if you can remove the timing cover and try to bring the engine using your hand with a tool by turning the crank shaft with the engine off and battery terminal off,to the timing marks. 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