Hello! New here, looking for some help, so joined the forum.

Do you know where I can find some wiring diagrams for '17 Grand Caravan. Have some weird issues with lambda probes that aren't caused by faulty lambdas so looks rather like wiring issue but can't trace that without some map. Unfortunately my search skills were to weak to pin it up on the web.

Thanks!

 

Lambda probe is AKA oxygen sensor or 02 sensor. What codes do you have or which sensor are you having a problem with? 2017 must be a 3.6 engine and you have 4 sensor 2 upstream and 2 downstream.

 

yup it's the oxygen sensor, don't remember the error codes, phone I had them on died, and car is at my friends-mechanic place. The issue is we get weird values at second downstreamsensor afair, but the sensor and heater are ok (we changed places of those nd values were fine), also installed external o2 sensor showed all is fine so just looks like issue with cables/computer.

The car had some accident before I bought it, so might be that the computer was hit or smtg or maybe some cable got pinched that's why I was looking for wiring diagram so can pass it to the mechanic

 

If you are getting a cat efficiency code. It could be the cat. and not the sensor. I would need to know the codes.

 

First of all big tks for helping!

I think it wasn't about cat, asked the mechanics to pass me the error codes.

There were low values on this o2 sensor, even changing with other sensor didn't help. So with proper values (observed with external sensor) looks like issue on line this sensor-ECU, or in ECU part responsible for this sensor.

Will update when i get the info.

 

the error that was occuring was P219B. maybe if car was driven more other would occure