GMC P1406: EGR Valve Pintle Position Circuit Malfunction
Is your scanner showing GMC P1406?
No worries. We'll show you what it means and how to deal with it.
GMC P1406: EGR Valve Pintle Position Circuit Malfunction
OVERVIEWWhat Does The GMC P1406 Code Mean?
Engine started; and the PCM/CM detected the EGR Position sensor signal was out-of-range EGR Position, or that the EGR Position sensor signal indicated more than 10% above the Desired EGR Position with the EGR solenoid commanded to 0%.
What Are The Potential Causes Of The GMC P1406 Code?
- EGR solenoid control circuit is open, shorted to ground or to B+
- EGR solenoid power circuit is open (check the ENG1 fuse)
- EGR solenoid is damaged or has failed
- PCM has failed
- TSB 76-65-04 contains a repair procedure for this code
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
>>> GM Genuine EGR Valve Temperature Sensor
>>> EGR Valve with Gasket
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Technical Service Bulletin PIP5094 for P1406 – General Motors
