Diagnostic Test

ACTIVE DTC 

1. Turn the ignition on, engine not running.
2. With the scan tool check for active DTCs.

   Is the DTC active?

   Yes 

   • The DEF Tank is low. If the vehicle will not start due to the tank being empty, a minimum of two and a half gallons of approved Diesel Exhaust Fluid  must be added for engine to be started. Reset the SCR Timer: Using the scan tool, Go to Misc. Functions> SCR Extend Mileage W Active Fault (and reset the Timer). Also, test drive the vehicle for 30 miles before beginning the PCM VERIFICATION Test.
   • Perform the POWERTRAIN VERIFICATION TEST. Refer to PCM VERIFICATION TEST .

   No 

   • Perform the INTERMITTENT CONDITION. Refer to INTERMITTENT DTC .