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.
- NO RESPONSE
- 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:
For "Lost Communication" test, refer to DIAGNOSTIC CODE INDEX .
For "No Response" condition, refer to DIAGNOSIS AND TESTING .
No
- Go To 2.
- Make sure the scan tool will communicate with the appropriate modules.
- 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.
- Turn the ignition on.
- 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
- 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 procedure. Refer to Diagnosis and Testing , 6.7L .
No
- Verify the vehicles performance by performing the Diesel Fuel System Validation procedure. Refer to DIESEL AFTERTREATMENT VALIDATION- 6.7L .
- Check the vehicle for one of the following conditions: