Diagnostic Test

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

NO RESPONSE
1. Make sure the scan tool will communicate with the appropriate modules.
  Are you currently experiencing a NO RESPONSE condition?
  
  Yes
  - The NO RESPONSE condition must be properly diagnosed before continuing.
  - Perform the appropriate BUS Communication test . Refer to COMMUNICATION - NON-DTC BASED DIAGNOSTICS - 3500 CAB & CHASSIS, 4500 & 5500 - DIAGNOSIS AND TESTING .
  No
  - Go To 2.
DTC PRESENT
NOTE:
Before continuing, complete the 6.7L Cummins Turbo Diesel Diagnostic Worksheet. Go to the TechConnect > submit the vehicle's VIN number > Search Tab > and Select Create Diagnostic Worksheet.
1. Turn the ignition on.
2. With the scan tool, view PCM for DTCs.
  Is there a DTC present?
  
  Yes
  - Proceed to the MIL LIGHT ON PRETEST PROCEDURE. Refer to MIL LIGHT ON PRETEST PROCEDURE .
  No
  - Go To 3.
CHECK FOR SYMPTOM BASED ISSUES
1. Check the vehicle for one of the following conditions:
  - Engine No Start / Hard Start
  - Engine Misfires / Runs Rough / Poor Performance
  - Engine Noise
  - Excessive Smoke (Black/Blue/White)
  Do one of the following conditions exist?
  
  Yes
  - Perform the appropriate symptom based diagnostic procedures below.
  No
  - Verify the vehicles performance by performing the Diesel Fuel System Validation procedure. Refer to DIESEL AFTERTREATMENT VALIDATION- 6.7L .