Volvo Owners Club Forum - View Single Post - v70 2.4D Euro4 06 163bhp DTC P0489 (P0403 now cleared)

FlyNavy · Dec 10th, 2019, 20:03

Or having read more about P0403 - EGR A Control Circuit/Open the code I cleared - https://www.yourmechanic.com/article...by-jay-safford

Maybe this is the original problem that then leads to the EGR being turned off, therefore creating the P0489 code. After clearing the codes and the EGR remaining in the off position it therefore instantly flags in the P0489 code there is no way to get P0403 to show again because the EGR is rendered in the off state. If you forced the EGR to work it would again see the open circuit again? So its a EGR vacuum solenoid that needs replaced maybe???

Dec 10th, 2019, 20:03	#3
FlyNavy New Member Last Online: Jul 28th, 2023 20:34 Join Date: Sep 2015 Location: Oxford	Or having read more about P0403 - EGR A Control Circuit/Open the code I cleared - https://www.yourmechanic.com/article...by-jay-safford Maybe this is the original problem that then leads to the EGR being turned off, therefore creating the P0489 code. After clearing the codes and the EGR remaining in the off position it therefore instantly flags in the P0489 code there is no way to get P0403 to show again because the EGR is rendered in the off state. If you forced the EGR to work it would again see the open circuit again? So its a EGR vacuum solenoid that needs replaced maybe???