GMC P1043: Reductant Pump High Control Circuit Low Voltage
Is your scanner showing GMC P1043?
No worries. We'll show you what it means and how to deal with it.
What Does The GMC P1043 Code Mean?
DTCs P204F, P20A1, or P2510 are not set The battery voltage is greater than 11 V. The engine speed is greater than 600 RPM. The engine run time is greater than 10 s. The DTCs run continuously once the above conditions are met.
The ECM detects that the commanded state of the driver and the actual state of the control circuit do not match for greater than 3 s.
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
>>> INNOVA 5210
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 P1043 – General Motors, October 2013; 2010-2014 GMC Savana, Sierra
- Technical Service Bulletin 12-06-04-002C for P1043 – General Motors, September 2014; 2010-2015 GMC Savana, Sierra
- Technical Service Bulletin 12-06-04-002D for P1043 – General Motors, April 2015; 2010-2015 GMC Savana, Sierra
