Diagnostic Test

WARNING: This page is about a different car, the 2013 RAM 3500 HD and 2013 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

CHECK THE DEF TANK LEVEL AND FLUID
1. Verify the DEF Tank level.
2. Check the fluid for signs of contamination.
  Is the fluid level in the DEF Tank above the minimum requirement and free of contamination?
  
  Yes
  - Go To 2
  No
  - Fill the DEF Tank to the proper level with clean Diesel Exhaust Fluid. If the fluid is contaminated, perform the cleaning procedure. Refer to TANK, DIESEL EXHAUST FLUID, CLEANING .
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
ACTIVE DTC
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 - 6.7L. Refer to STANDARD PROCEDURE .
CHECK THE DEF SUPPLY SYSTEM FOR LEAKS
1. During the actuation of the Diesel Exhaust Fluid Prime Test, visually inspect the DEF Supply Pump Assembly and DEF Pressure Line for signs of a fluid leak.
  Are there any leaks in the DEF System?
  
  Yes
  - Perform the appropriate repair. Refer to appropriate service information.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
  No
  - Go To 4
CHECK THE DEF INJECTOR
1. Stop actuation of the Diesel Exhaust Fluid Prime Test.
2. Turn the ignition off.
3. Remove the DEF Injector.
4. Turn the ignition on.
5. With the scan tool, navigate to Systems Tests and actuate the Diesel Exhaust Fluid Prime Test.
  NOTE:
  When the Diesel Exhaust Fluid Prime Test is initiated, the DEF Injector is opened to purge air from the system and then closed. Wait 30 seconds before checking for leaks.
6. Check the DEF Injector for a leak.
  Is the DEF Injector leaking?
  
  Yes
  - Replace the DEF Injector.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
  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 - 6.7L. Refer to STANDARD PROCEDURE .