Sunday, June 3, 2012

DIY: Diagnose Daihatsu Mira Engine Through Diagnose Socket

Here is one of the nicest post that shows how to diagnose Daihatsu Mira engine. This is good that not many mechanics outside there do have a diagnostic meter for such an engine. Normally when the engine check light is on which means that there is something wrong of your car's sensors. Most probably these sensors are not working or having problem. Anyway do not panic, we can check which sensors that are giving up their way through the   diagnostic socket.

Continue to read more for more detail information.

1.Tool that needed. Short wires.

2. Open up the diagnostic socket which located at the engine bay.

3. Short the wire at the terminal socket.

4. Turn the key to ON position. Then count how many times the engine check light blink. If there is no problem with all the sensors, the engine check light will keep on blinking without pausing while if there is a problem with either one of the sensor, the engine check light will blink then pause and then blink again. This is to show what is the engine error code. For instant, if the engine check light blink 5 times then pause and then blink 2 times again, this indicate that the error code is 52.

5. Here below are the Error Code.
Code
Diagnose Item
Diagnose Content
Trouble Area
13
Engine Revolution Signal
When engine revolution signal is not input while the starter switch is ON
Cam angel sensor and circuit
21
Oxygen sensor signal
When input signal from Oxygen sensor shows too lean. Air to fuel ration under certain condition
Oxygen sensor circuit and Oxygen sensor
31
Pressure sensor signal
When input signal from the pressure sensor becomes more than 4.9v or less than 0.7v
Pressure sensor circuit and pressure sensor
41
Throttle position sensor signal
When both idle switch, power switch position sensor become ON condition.
Throttle position sensor circuit and Throttle position sensor and ECU
42
Cooling water temperature signal
When the engine cooling water temperature sensor circuit become OPEN or SHORTED
Water temp sensor circuit, water temp sensor
43
Intake air temp signal
When the intake air temp sensor circuit becomes OPEN and SHORTED
Air temp sensor circuit, air temp sensor
44
A/C evaporator temp sensor
When the A/C evaporator temp sensor circuit exhibits OPEN or SHORTED
A/C evaporator temp sensor circuit, A/C evaporator sensor
45
A/C Compressor
When the A/C switch is turn ON, the rotation signal from the A/C compressor becomes too low because of slipping of the magnet clutch or overload
A/C magnet clutch and A/C lock sensor circuit
51
Switch signal
When the A/C switch is turn ON, the idle switch is turned off with the test terminal of the diagnostic connector SHORTED. However no more memoryzing will take place
A/C switch, Idle switch circuit, Throttle position sensor
52
Vehicle speed sensor signal
When the vehicle speed signal circuit exhibits OPEN wire or SHORTED circuit
Vehicle speed sensor circuit and vehicle speed sensor
81
Immobilizer signal
When the rolling codes cannot be exchanged between the EFi ECU and the Immobilizer ECU or the rolling codes are not matched
Wire harness between the immobilizer ECU and EFi ECU. Immobilizer ECU. EFi ECU
83
Immobilizer signal
When the rolling codes cannot be exchanged in the EFi ECU
EFi ECU



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11 comments :

hi,good info..does this type of engine can diagnosed through computerized?because my engine seem like something wrong since the engine check light is on..thanks..

Hi loco,

As long as you got the diagnosis tool then you can plug it to the socket to diagnose your error.

Ben

Thanks for the info but what do i do with the wire with the clips on?

Hi Ben ,

Just to ask is anyway to do reset the error code

hi ben,my engine check light signal is 31 and 51,what can i do now??

Hi,

Have you already checked the trouble area as stated in the table?

Ben

Hi, thank you for this very useful tip. I just changed to EF-RL engine and I'm getting error code 51 from the method you showed. I don't really understand what the description meant...is it a problem with the A/C or the idle switch? Or problem with memoryzing?

Very confused.

Could you kindly explain what code 51 means? Its very confusing...is it a problem with A/C, Idle Switch or memory?

Need help. I got L200 (turbo) engine here. Suddenly check engine light appear after hit the gas pedal at 4k rpm. When i pull over and wait for 5 min then the check engine light dissapear. What can cause it??

HI BEN,

I GOT DAIHATSU MIRA EF-JL (L200)SOHC ENGINE WITH TURBO. HOW POSSIBLY I CAN CHECK THE ERROR CODE SINCE THE DIAGNOSTIC SOCKET IN THE ENGINE BAY WASN'T THERE. NEED HELP HERE.