Cadillac P1406: EGR Valve Pintle Position Circuit Malfunction
Is your scanner showing Cadillac P1406?
No worries. We'll show you what it means and how to deal with it.
Cadillac P1406: EGR Valve Pintle Position Circuit Malfunction
OVERVIEWWhat Does The Cadillac P1406 Code Mean?
Engine running at idle speed, and the PCM detected the EGR Position sensor was 0.18v during Test 1; or the EGR Position sensor was 2.06v or higher during Test 2; or the maximum change in Desired EGR was less than 0.10v with the signal error over 0.20v.
What Are The Potential Causes Of The Cadillac P1406 Code?
- EGR solenoid (valve) is binding or sticking
- EGR solenoid control circuit is open, shorted to ground or to B+
- EGR solenoid power circuit is open (check the ECS 10A 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:
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
