Chevrolet P1406: EGR Valve Pintle Position Circuit Malfunction
Is your scanner showing Chevrolet P1406?
No worries. We'll show you what it means and how to deal with it.
Chevrolet P1406: EGR Valve Pintle Position Circuit Malfunction
OVERVIEWWhat Does The Chevrolet P1406 Code Mean?
Engine started, and the PCM detected the EGR Feedback signal was less than 0.14v, or with the EGR Position commanded to 0%, the EGR Feedback signal was 0.40v more than the EGR Closed Valve Pintle Position, or that the Actual EGR Position was 10% more.
What Are The Potential Causes Of The Chevrolet P1406 Code?
- EGR solenoid control circuit is open, shorted to ground or to B+
- EGR solenoid power circuit is open (test ACTUATORS fuse)
- EGR solenoid is damaged or has failed
- PCM has failed
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 Parts 12633238 Engine Control Module
>>> GM Genuine Parts 214-329 Exhaust Gas Recirculation (EGR) Vacuum Solenoid
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Check This Video For Reference
Reference Sources
GM, 2013, Service Bullettin – Prior To Any Circuit Testing.
