Diagnostic Test
WARNING: This page is about a different variant/trim than selected.
- READ AND RECORD DTCS AND ENVIRONMENTAL DATA - ERASE DTCS AND CHECK FOR THE DTC TO RETURN
- With the scan tool, read DTCs in all Electronic Control Units (ECUs) and record on the repair order.
- For future reference, run and save a vehicle Scan Report and all related recorded data.
- With the scan tool, erase all DTCs.
- Turn the ignition off for a minimum of 75.0 seconds.
- Turn the ignition on.
- Using the When Monitored and Set Conditions above and recorded data, operate the vehicle in the conditions that set the DTC.
- With the scan tool, read DTCs.
Did the DTC return?
Yes
- Go To 2
No
- Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT DTC .
- CHECK FOR OTHER DTCS
- Ignition on, engine not running.
- With the scan tool, read DTCs.
Are there any other 5-Volt Reference, EGR Temperature Sensor, Coolant Temperature, Fuel System or EGR Valve DTCs?
Yes
- Repair other DTCs before proceeding.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to 3.0L, POWERTRAIN VERIFICATION TEST .
No
- Go To 3
- CLEAN THE EGR COOLER AND RETEST FOR DTC
- Remove and clean the EGR Cooler with approved Mopar EGR system cleaner.
- Reinstall the EGR Cooler.
- With the scan tool, erase DTCs.
- Turn the ignition off for 75 seconds.
- Start the engine. It may be necessary to test drive the vehicle.
- With the scan tool, read DTCs.
Did the DTC return?
Yes
- Replace the EGR Cooler in accordance with the Service Information.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to 3.0L, POWERTRAIN VERIFICATION TEST .
No
- Cleaning the EGR Cooler repaired the fault.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to 3.0L, POWERTRAIN VERIFICATION TEST .