Problem: The vehicle came to the shop with
the MIL on. The engine seemed to run normally.
Details: The bulletin stated to connect a
scan tool and pull codes from all modules. If any of the
following DTCs are present, check for signs of DFE contamination:
P20EE, P2BA9, P20E8 or P20E9.
The technician connected a scan tool and pulled DTC, P20EE. He
inspected the Diesel Emission Fluid (DEF) fluid and it looked
good, but he replaced the fluid anyway, using new DEF fluid in
from a sealed bottle. There was still no difference.
An ALLDATA Tech-Assist consultant suggested that the
technician check the DEF injector for signs of contamination
based on a factory TSB he found in ALLDATA (TSB #25-003-15). It
appears that the DEF system on Grand Cherokees with a 3.0L Turbo
Diesel engine, built on July 10, 2015 to July 11, 2015 and
vehicles built on August 24, 2015 to August 25, 2015, may have
been contaminated during manufacturing.
NOTE: Based on the vehicle’s VIN, additional
replacement parts are suggested. Please review the full TSB in
Confirmed Repair: The technician checked
the DEF injector and it was full of limestone deposits. He was
able to clean the injector and reinstall it. After clearing the
DTC and test driving the vehicle, the MIL remained off and did