Diagnostic Test

WARNING: This page is about a different car, the 2011 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, navigate to Systems Tests and actuate the Diesel Exhaust Fluid Doser Pump Override Test.
3. With the scan tool, View DTCs.
  Is the DTC active?
  
  Yes
  - Go To 2.
    NOTE:
    If any of the following DTCs are active with this DTC; P20A0, P20A2, P20A3, P20FE, P2048, P2049 or P208B, perform the diagnostics for those DTCs before continuing with this test procedure.
  No
  - Perform the INTERMITTENT CONDITION - 6.7L diagnostic procedure. Refer to INTERMITTENT CONDITION - 6.7L .
CHECK THE DEF LINES AND FITTINGS FOR LEAKS OR RESTRICTIONS
1. Turn the ignition off.
2. Visually inspect the DEF lines and fittings for signs of a leak.
3. Remove the lines from the fittings at the DEF Supply Pump Assembly and DEF Injector and inspect the fittings for signs of crystallization or blockages.
  Were any leaks or blockages found?
  
  Yes
  - Repair or replace the leaking or blocked lines or fittings as necessary.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Replace the DEF Pump Assembly Filter.
  - Go To 3.
CHECK THE DEF PUMP ASSEMBLY
1. Reconnect all of the DEF lines.
2. Remove the DEF Injector from the Decomp Tube. Refer to INJECTOR, Diesel Exhaust Fluid , Removal .
3. Place the DEF Injector in a container to capture the fluid sprayed.
4. Turn the ignition on.
5. With the scan tool, navigate to Systems Tests and actuate the Diesel Exhaust Fluid Doser Pump Override Test.
  NOTE:
  This Test will run for six minutes before timing out. The amount of flow may fluctuate through out the test, therefore the test must be allowed to run completely in order for the results to be accurate. The fluid should spray out as a mist. There should be no dripping from the holes in the DEF Injector at any time during the duration of the test procedure.
6. Measure the amount of fluid sprayed after the test times out.
  Does the fluid sprayed measure between 85 ml and 115 ml?
  
  Yes
  - Repair complete.
  No
  - Replace the DEF Pump Assembly in accordance with the service information. Refer to ASSEMBLY, Diesel Exhaust Fluid Pump , Removal .
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .