GMC P1049: Reductant Injector High Control Circuit High Voltage
Is your scanner showing GMC P1049?
No worries. We'll show you what it means and how to deal with it.
GMC P1049: Reductant Injector High Control Circuit High Voltage
OVERVIEWWhat Does The GMC P1049 Code Mean?
The engine is running. The battery voltage is greater than 11 V. The ECM is commanding the reductant injector duty cycle greater than 0 %. The Reductant Injection Inhibit Reason displays None. The ECM detects that the commanded state of the driver and the actual state of the control circuit do not match for greater than 5 s. The DTCs run continuously once the above conditions are met.
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> KAIWEETS Digital Multimeter
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
- Technical Service Bulletin 12-06-04-002B for P1049 – General Motors, October 2013; 2010-2014 GMC Savana, Sierra
- Technical Service Bulletin 12-06-04-002C for P1049 – General Motors, September 2014; 2010-2015 GMC Savana, Sierra
- Technical Service Bulletin 12-06-04-002D for P1049 – General Motors, April 2015; 2010-2015 GMC Savana, Sierra
- ProDemand Automotive Repair Information for P1049 – 2016 Chevrolet Silverado 3500 HD WT 6.6L
