Diagnostic Test

WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

CHECK THE DIESEL EXHAUST FLUID
1. Turn the ignition off.
2. Collect a sample of diesel exhaust fluid from the system.
3. Visually inspect the fluid for signs of contamination or debris.
4. To test for hydrocarbons in the DEF tank use Hydroscopic test paper (223-44-863) available through MoparEssentialTools.com. Then, ENTER EQUIPMENT CATALOG. Or call (855)-298-2687. The test strip must come in contact with the DEF fluid in the tank in order to get a valid reading for hydrocarbons present in tank.
5. Remove the test paper from the package and inspect for color consistency. If the color is not consistent replace strip.
6. Disconnect the DEF fill pipe from tank and try to get a sample or remove the DEF tank.
7. Place the test paper directly into the DEF fluid in the tank. If the light blue paper turns dark blue, that is an indication that oil or hydrocarbon contamination is present.
  Is the Diesel Exhaust Fluid (DEF) free of debris, hydrocarbons, or other contamination?
  
  Yes
  - Go To 2
  No
  - If the DEF fails the Hydroscopic test paper test or shows signs of other contaminants: Drain the Diesel Exhaust Fluid (DEF). Replace the DEF Tank, DEF Supply Pump Assembly, DEF Injector, DEF Supply Tube, DEF Filler Tube, and DEF Filler Cap in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
ACTIVE DTC
NOTE:
If there are any DEF Heater related DTCs, perform the Diagnostics for those DTCs before continuing with this one.
1. Turn the ignition on.
2. With the scan tool, navigate to Systems Tests and actuate the Diesel Exhaust Fluid Prime Test.
3. With the scan tool, View DTCs.
  Is the DTC active?
  
  Yes
  - Go To 3
  No
  - Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .
CHECK THE DEF LINE AND FITTINGS FOR RESTRICTIONS
1. Turn the ignition off.
2. Remove the line from the fitting at the DEF Supply Pump Assembly and DEF Injector and inspect the fittings for signs of crystallization or blockages.
  Were any blockages found?
  
  Yes
  - Repair or replace the blocked lines or fittings as necessary.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Replace the DEF Supply Pump Assembly in accordance with the service information. Refer to ASSEMBLY, DIESEL EXHAUST FLUID PUMP, REMOVAL .
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .