Ford's answers to the NHTSA 6.7 Investigation
There was a request for a link to Ford's answer's to the NHTSA investigation posted on a previous thread, since closed. Here is the link: Ford's NHTSA Answers to the 6.7 investigation This PDF i...
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Additional Info:
There are 3 heater circuits, in tank heater, pump heater, and the heated line.
The one that is at fault is the in tank heater.
AFAICS, NOTHING to do with the DEF douser (termed "injector" by the tech).
Diagnostics include:
A) Check wiring for fault -- damage
B) Swap in a new tank sensor (or tank module).
Here is the diagnostics:
:C
Did the tech that did the work finish high school?
There are 3 heater circuits, in tank heater, pump heater, and the heated line.
The one that is at fault is the in tank heater.
AFAICS, NOTHING to do with the DEF douser (termed "injector" by the tech).
Diagnostics include:
A) Check wiring for fault -- damage
B) Swap in a new tank sensor (or tank module).
Here is the diagnostics:
Reductant Heater Performance Check Operation (Heater Circuit #1):
DTCs P209F – Reductant Tank Heater Control Performance
Monitor execution Once per heat cycle (after cold start)
Monitor Sequence P20B9, P20BB, P20BC must complete for P209F
Sensors/Actuators OK
tank temperature sensor, tank heater
Monitoring Duration 2200 ms for fault detection
Typical Reductant Heater Performance Check Malfunction Thresholds
(Heater Circuit #1):
P209F: temperature increase < 0.5°C
:C
Did the tech that did the work finish high school?
