CODE 52

1994 Toyota Corolla

Tiny

kaikiing

September, 30, 2011 AT 1:56 PM

Hi,

My Toyota Corolla AE110 year 1994 if not wrong with 16 valve EFI engine found error 52 after diagnostic jumper test. May I know what might be the problem is and how serious will be the problem cause. Can lead me some step for checking?

Thanks.

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18 Answers

Tiny

KHLow2008

September, 30, 2011 AT 2:05 PM

DTC 52 - KNOCK SENSOR SIGNAL (1.8L)

DTC 52 is set when ECM detects an open or short in the knock sensor circuit with engine speed between 1200-6000 RPM. Check for open or short in knock sensor circuit, a loose or faulty knock sensor of faulty ECM.

Tiny

mhpautos

September, 30, 2011 AT 2:06 PM

This code is for a knock sensor, before doing anything I would clear the code and test drive then re scan with an OBD11 scanner report back if there is a new code set.

Tiny

kaikiing

September, 30, 2011 AT 2:23 PM

Hi?
If not wrong my car cannot use any scan tools for scanning.I only found a diagnostic socket in front engine part. Can it be scan using scan tools?

Thanks.

Tiny

kaikiing

September, 30, 2011 AT 2:25 PM

Another thing.I accidentally start the engine when still jumper at the diagnostic port. Will that make any effect to my car ECM?

Thanks

Tiny

mhpautos

September, 30, 2011 AT 2:28 PM

No it will not.

Tiny

kaikiing

September, 30, 2011 AT 2:42 PM

Can anyone show me how will exactly the knock sensor look like for toyota ae110?Many many thanks

Tiny

kaikiing

September, 30, 2011 AT 2:45 PM

Mphautos, May I know your answer of no it will not is answer for my which question?Sorry for asking that.

Tiny

KHLow2008

September, 30, 2011 AT 2:56 PM

Refer to 3 rd diagram for sensor.

Tiny

mhpautos

October, 1, 2011 AT 12:08 AM

Leaving the check connector in will not do any harm, do not leave it in there all the time, but for testing it is not a problem.

Tiny

kaikiing

October, 1, 2011 AT 1:39 AM

Thanks a lot mhpautos.

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