Diagnostic Test
WARNING: This page is about a different car, the 2019 RAM 3500 HD and 2019 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
CHECK FOR AN ACTIVE DTC
- Turn the ignition on, engine not running.
- With the scan tool check for active DTCs.
Is the DTC active?
Yes
- The DEF Tank is empty. If the vehicle is in a 5 mph de-rate due to the tank being empty, a minimum of two and a half gallons of approved Diesel Exhaust Fluid must be added.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
No
- Perform the INTERMITTENT CONDITION. Refer to INTERMITTENT CONDITION .