Dodge ram 3500 cummins 6.7l, getting P0405 and P0489.

Question

The codes are pending and stored. Is this an indication of a bad egr valve/step motor?

Answer 1

Hi there,

These codes indicate an issue with the EGR. Here is some info for you.

P0405 DODGE - Exhaust Gas Recirculation Position Sensor Circuit Low

Read more: https://www.autocodes.com/p0405_dodge.html

P0489 DODGE - Exhaust Gas Recirculation Throttle Control Circuit 'A' Circuit Low

Read more: https://www.autocodes.com/p0489_dodge.html