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.

Active DTC
1. Turn The Ignition On.
2. With The Scan Tool, Read DTCS.
  NOTE:
  If There Are Any Other EGR DTCS Present, Perform The Diagnostics On Those DTCS Before Continuing With This Diagnostic Tree.
3. With The Scan Tool, Record All Freeze Frame Data.
4. With The Scan Tool, Erase DTCS.
5. Turn The Ignition Off For 75 Seconds.
6. Turn The Ignition On.
7. With The Scan Tool, Read DTCS.
  Did DTC P049D Reset?
  
  Yes
  - Go To 2
  No
  - Perform The INTERMITTENT CONDITION Diagnostic Procedure. Refer To INTERMITTENT CONDITION .
Clean The EGR Valve
NOTE:
Ensure That The PCM Has The Latest Flash And The Scan Tool Software Is Up To Date.
1. With The Scan Tool, Monitor The EGR Valve Gap.
  Is The EGR Valve Gap Equal To 1?
  
  Yes
  - Replace The EGR Valve In Accordance With The Service Information.
  - Perform The POWERTRAIN VERIFICATION TEST. Refer To POWERTRAIN VERIFICATION TEST .
  No
  - Remove And Clean The EGR Valve In Accordance With The EGR Valve Cleaning Procedure.
  - Perform EGR Valve Cleaning Procedure. Refer To Valve, Exhaust Gas Recirculation (EGR), Cleaning .
  - Go To 3
EGR Valve
1. After Completing The EGR Cleaning Procedure, Re-Connect The EGR Valve Harness Connector. But, Do Not Re-Install The EGR Valve.
2. With The Scan Tool, Monitor The EGR Valve Gap.
  Is The EGR Valve Gap Equal To 1?
  
  Yes
  - Re-Install The EGR Valve. Repair Is Complete.
  - Perform The POWERTRAIN VERIFICATION TEST. Refer To POWERTRAIN VERIFICATION TEST .
  No
  - Replace The EGR Valve In Accordance With The Service Information.
  - Perform The POWERTRAIN VERIFICATION TEST. Refer To POWERTRAIN VERIFICATION TEST .