01/20/2026
Technical Bulletin Alert: 2019-2022 RAM 6.7L Cummins Diesel
Superior Diesel Companies is currently addressing an increase in DTC P203E-00 (Reductant Level Sensor Intermittent) cases.
This issue is frequently caused by incomplete thawing of DEF fluid, where ice or crystals settle on the focus tube and block the sensor signal. Our team follows the factory-recommended repair procedure, including:
Replacement of the GVV and Urea Delivery Module (Kit 68457124AD).
Complete DCU software reprogramming.
System-wide DTC clearance and verification.
Keep your fleet or personal work truck on the road this winter with certified diesel expertise.đź“Ť Visit Superior Diesel Companies today!
https://www.vehicleservicepros.com/tsbs/article/55340651/ram-def-freezing?o_eid=6197B0149545I9K&oly_enc_id=6197B0149545I9K&rdx.ident[pull]=omeda|6197B0149545I9K&utm_campaign=CPS251202155&utm_medium=email&utm_source=MA+Service+Repair
This bulletin applies to 2019-2022 RAM 2500/3500/4500 vehicles equipped with a 6.7L I6 Cummins turbo diesel engine. Customers may experience a MIL on. DTC P203E-00 (reductant ...
