[cummins2693]

I was drivin hauling my 2 four wheelers and engine light came on the codes that came up r P0406 and P0489 anybody can help and see if it's sum little cuz it drives the same

 

[Compcowboy]

were you hard on the throttle? did the lightning bolt flash?

 

[Noles98]

I got this of a thread awhile back...it listed all the codes


P0489-egr Control Circuit Low

I couldn't find a 0406 but did find

P040b-exhaust Gas Recirculation Temperature Sensor 1 Circuit Performance

 

[cummins2693]

Naw the truck was on cruze control and just came on then when i stoped i checked the codes truck runs fine

 

[snackpack]

p0406- EGR POS SENS VOLTS TO HI.

guess if you were waiting for it io break til you chop it out, now is the time!!!!!!!!

 

[cummins2693]

So is it not drivable or what cuz it runs like nuthing is the matter and the over head messages says system is fine

 

[DodgeCTDpower]

WHeres the thread that says all of the codes? Could someone give me a link

 

[Cumminsturbo22]

Computer codes - Diesel Truck Resource - Wiki
Computer codes - Diesel Truck Resource - Wiki
this should help for future reference.

 

[cummins2693]

so sensor is high is that mean it can mess up my truck

 

[Hlntoiz]

I just got P0406 today and also P245A.

What does Sensor to high do to the truck?

 

[John Banks]

IP245A.

What does Sensor to high do to the truck?

I get the 245a code everyday it's cold out Matt - it's a soft code for the EGR Cooler. Mine fell off, not sure why you're getting that code