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ZUKIWORLD Discussion Forum => Technical Discussion - Beginner / Repair => Topic started by: 94trackkick on March 20, 2011, 03:43:28 PM

Title: check engine light code 15
Post by: 94trackkick on March 20, 2011, 03:43:28 PM

i have replaced the coolant temp sensor but the code for it came up again is there anything besides the sensor and the thermostat that will cause this code to come up thank you

Title: Re: check engine light code 15
Post by: beagle..t on March 20, 2011, 07:18:02 PM

did u reset ECU ?

Title: Re: check engine light code 15
Post by: beagle..t on March 20, 2011, 07:20:29 PM

did u check all grouynd wires also this might help also

Title: Re: check engine light code 15
Post by: 94trackkick on March 20, 2011, 07:38:59 PM

alright thank you and yes i have reset the ecm it comes back on after about 2 hours of driving

Title: Re: check engine light code 15
Post by: fordem on March 20, 2011, 09:06:51 PM

Did you use a genuine Suzuki sensor or an after market replacement?

Title: Re: check engine light code 15
Post by: 94trackkick on March 20, 2011, 09:38:14 PM

it is an after market sensor from borg

Title: Re: check engine light code 15
Post by: fordem on March 21, 2011, 06:13:01 AM

I've no idea of the quality of borg product, and I'm not going to say that the aftermarket sensor is the cause of your problem, but I will suggest that you keep the possibility in mind.

I've seen a number of posts on this (and other) forums, and have personal experience with aftermarket temperature gauge senders being "out of spec" and consequently sending the wrong signals.

Title: Re: check engine light code 15
Post by: Rhinoman on March 21, 2011, 11:55:25 AM

Code 15 is coolant temperature sensor low so its not a ground issue. If you have a multimeter then you should check the voltages on the connector. Disconnected you should get 5V on one side and 0V on the other side, when connected the voltage should drop. Also check the resistance of the sensor.