Is anyone having trouble with def heater going out and engine light coming on.
2014 duramax def tank heater.
If the pcm detects no voltage on the control circuit for reductant heater a a code p20b9 will be stored and a malfunction indicator lamp may be illuminated.
The def tank will need to be dropped for easiest access as the tank heater will be removed from the top of the tank.
The procedure to replace the tank heater is the same for duramax trucks from 2011 2016 as the location was unchanged.
29400 01 summary 29400 01 special coverage.
These heaters are typically located in the def reservoir and or the reductant injector supply hose s.
I called dealer yesterday 11 10 17 and new e mail out saying gm is revising warrantee on this part for 12 years or 120 000 miles.
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Order diesel exhaust fluid def heater for your vehicle and pick it up in store make your purchase find a store near you and get directions.
Several friends have 2015 2500 duramax and heaters going out.
So gm has noticed that there are problems out there with the def heater.
Hd gmc savana gmc sierra hd and 2014 2015 model year chevrolet cruze vehicles that are equipped with a diesel engine a malfunction indicator light mil may illuminate due to an offset in the temperature sensor in the diesel emission reduction fluid def tank reservoir or increased def tank heater resistance.
On certain vehicles that are equipped with a diesel engine rpo lml lgh luz a malfunction indicator light mil may illuminate due to an offset in the temperature sensor in the diesel emission reduction fluid def tank reservoir or increased def tank heater resistance.
10135147 manufacturer communication number.