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RAM PROMASTER SERVICE DEF SYSTEM MESSAGE CODE

And i am told that they will not re-perform the test. I did have the oil consumption recall test performed on this vehicle, but i do not feel that it was conducted properly by the dealer. The oil consumption on this vehicle is outrageous. Higher speeds, unexpected braking, vehicle loss of control.

But, if this occurred in a highway or higher speed setting the results could have been much worse. Luckily in both cases this occurred in low speed residential area streets. In this case, the vehicle would not restart until additional oil was added. When the brakes were applied, the engine shut off, power steering and brakes were lost and almost resulted in a rear end collision with the vehicle in front of it. In the second case, the vehicle was approaching a stop sign when the vehicle in front of it braked hard unexpectedly. He said after a period of time when the oil settled back on the sensor the vehicle would restart with no issue. He said the sensor could be activated by a braking action, and in that case it would shut off the engine with no warning. He informed me that on this vehicle the low oil sensor does not display a message or set a code, it simply shuts off the motor. Upon speaking with the service advisor about what occurred, he informed me that most likely it was the low oil sensor. The vehicle was checked for fault codes and none where found, and the vehicle was performing normally at this time. The vehicle was taken to the local dodge/ram dealer. After a period of time, approximately 15 minutes in the first case, the vehicle was able to be restarted.

On 2 occasions the vehicle has been in motion coming up to a stop sign and when the brakes were applied the vehicle died and would not restart. This vehicle is normally driven by my wife or daughter.

RAM PROMASTER SERVICE DEF SYSTEM MESSAGE CODE

The low oil sensor does not give any type of warning, message, or store a fault code in the vehicle. If NOx levels remain too high at the outlet NOx sensor, the ECM may command additional EGR or additional DEF dosing to lower these levels. NOTE: The ECM compares the inlet and outlet NOx sensor values to determine if the aftertreatment system is efficiently removing NOx. – DEF temperature must be above 27☏ (-3☌) – Both NOx sensors must be reading NOx levels – The SCR intake temperature must be at least 302☏ (150☌) and the SCR outlet temperature must be at least 392☏ (200☌) – DEF pressure must be sufficient for dosing – DEF quality must be verified by the quality sensor – DEF tank level must be above 6% filled with DEF – No current DTCs for the SCR or DEF system

The following conditions are required for effective dosing to occur:.

Dosing is not necessarily consistent the ECM commands dosing frequency and quantity based on several sensor inputs and engine operating conditions. When the ECM determines that DEF dosing should occur, it sends a PWM signal to energize the DEF dosing valve, spraying DEF into the decomposition tube.

The DEF dosing valve is directly controlled by the ECM.

The pump runs whether or not the dosing valve is spraying DEF.

The DEF pump runs continuously to maintain DEF dosing line pressure when the system is in the dosing state.

}EF concentration can be tested using a refractometer that is calibrated for DEF.

In addition, adding water to DEF will raise the freezing point. Chemicals introduced by adding unpurified water can also corrode or damage aftertreatment components or damage the DEF dosing valve. Adding water to DEF will change the DEF concentration, which will reduce SCR effectiveness.

In addition, DEF should not remain in the DEF tank of an unused vehicle for more than 6 months.

However, for each 9☏ (5☌) increment above this recommended temperature, shelf life is reduced by 6 months.

}EF may be stored in sealed containers away from direct sunlight in temperatures between 23☏ and 77☏ (-5☌ and 25☌) for up to 18 months.

Nissan recommends that you use a DEF that meets the International Organization for Standardization (ISO) 22241 specification.

How often it needs to be refilled is based on vehicle usage such as driving conditions, loads, speeds,.

The DEF tank holds 4.5 US gallons (17 L) of Diesel Exhaust Fluid (DEF) and needs to be refilled when the DEF level display indicates the DEF is low.