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fault codes for Toyota car

Introduction:

UC constantly processing signals from various sensors of the injection system and ignition and compares them with the parameters stored in its memory. If a fault is detected the LED lights on the instrument panel "CHECK ENGINE" and the fault code is stored in the memory of the UC until is deleted. UC while replacing the faulty sensor signal by a value stored in memory, which provides an emergency running function. After rectification of the fault can erase the memory of the UC disconnecting the ignition and removing the EFI fuse, light the "Check Engine" then you should turn off automatically.

Preparation:

battery voltage a minimum of 11 volts, butterfly valve fully closed (idle position), the transmission in neutral, all the accessories included in A / C disconnected, motor to normal operating temperature.

Check: Dar

the contact on but not start the engine, make a bridge between terminals TE1 and E1 of the diagnostic plug located in the engine compartment, the LED "Check Engine" then flashes on a steady source off "(0-0) a" No fault stored, if any fault storage is indicated by two series of flashes for each fault code, the first series of flashes representing the first digit of the fault code and flashes has 0.5 seconds in duration, the two series of flashes are separated by a pause of 1.5 seconds, the second series of flashes indicates the second digit fault code and consists of flashes of 0.25 seconds in duration, if there has been more of a fault code will result in a 2.5-second pause between codes. Once displayed all fault codes will be a pause of 4.5 seconds before repeating.

Clearing memory:

Once corrected the faults must clear the fault code memory of the UC, to erase the memory off the ignition and remove ignition fuse 15 A of the EFI for at least 10 seconds (the colder the engine is taken long to fuse). Once the memory is erased to road test the vehicle to ensure that the fault was corrected properly and that the UC does not detect another fault.

Vehicle Code Table of
TOYOTA
11. Power to the UC

12.

RPM signal 13. RPM signal - over 1500 rpm

14.

ignition signal 16. ETC control signal (if fitted)

21. Lambda22 probe. Coolant temperature sensor

24. Air temperature sensor

25. Pobre26 mixture.

rich mixture

27. Lambda left or only

28. V6 right lambda

31. Air volume meter / sensor MAP32. Air volume meter

34. Turbo boost pressure signal

35. Turbo boost pressure signal / sensor MAP41. Throttle position sensor

42.

speed sensor 43. Starter signal

47. Potentiometer

Butterfly 51.

butterfly switch signal

52. Chopped detector

left or only 53. Grinding Control (UC)

54.

Intercooler signal 55. Chopped right detector (V6) 78. Fuel pump drive

81. ETC open circuit control unit (UC)

83. As above

84. Idem

previous 85. As above