What does the Def sensor read on a diesel engine?
The level sensor only has the capability of reading 0%, 33%, 66%, 100%. Included in the level indicator is a temperature sensor. •DTC P203F is an information DTC ONLY and will not set the MIL. This DTC is only set as an indicator that the operator ran the DEF level low and does not indicate a fault with the level sensor.
How can I tell if my DEF tank is frozen?
To verify if the fluid is frozen, the Tech 2 DEF level reading can be used. After a normal DEF tank fill, the DEF fluid level reading (on Tech 2) should have increased to 100%. If fluid was added and the level does not change, the DEF fluid may be frozen. The fluid will have to be thawed before completing the process in this PI.
Why is my Def warning not clear on my GMC?
If the vehicle has been driven for a few miles, the ignition has been turned off (allowing the ECM to go to sleep for at least 5 minutes), and the DIC will not update, the message may have become latched into the ECM. There are three different reasons for a DEF (Diesel Exhaust Fluid) warning message to set.
Why does my Def fluid not update after refill?
After a refill it may be necessary to drive the vehicle for a few miles before the DEF fluid information will update on the DIC. If the vehicle has been driven for a few miles, the ignition has been turned off (allowing the ECM to go to sleep for at least 5 minutes), and the DIC will not update, the message may have become latched into the ECM.
To verify if the fluid is frozen, the Tech 2 DEF level reading can be used. After a normal DEF tank fill, the DEF fluid level reading (on Tech 2) should have increased to 100%. If fluid was added and the level does not change, the DEF fluid may be frozen. The fluid will have to be thawed before completing the process in this PI.
After a refill it may be necessary to drive the vehicle for a few miles before the DEF fluid information will update on the DIC. If the vehicle has been driven for a few miles, the ignition has been turned off (allowing the ECM to go to sleep for at least 5 minutes), and the DIC will not update, the message may have become latched into the ECM.
If the vehicle has been driven for a few miles, the ignition has been turned off (allowing the ECM to go to sleep for at least 5 minutes), and the DIC will not update, the message may have become latched into the ECM. There are three different reasons for a DEF (Diesel Exhaust Fluid) warning message to set.
How much Def fluid is left in 2012 Duramax?
So I have a 2012 Duramax. The DEF fluid got low. It read 200 miles remaining. So I put more DEF fluid in. It held 1.5 gallons. Which is not enough to fill the tank on that. Still reads 200 miles remaining.
The level sensor only has the capability of reading 0%, 33%, 66%, 100%. Included in the level indicator is a temperature sensor. •DTC P203F is an information DTC ONLY and will not set the MIL. This DTC is only set as an indicator that the operator ran the DEF level low and does not indicate a fault with the level sensor.
What to do about bad def quality and NoX sensor?
There is a diagnostic procedure to follow to identify the problem. An intermittent problem like yours is the toughest to pinpoint. The exact fault code (SPN and FMI) will help, also any thing else you can tell us. Is there anything pattern or conditions that may be associated with it?
What do you need to know about Def tanks?
–DEF Tank Sensor Assembly for Level and Temperature now fitted with Quality Sensor –Quality Sensor must detect 32.5% concentration of DEF •Use DEF meeting ISO22241 specifications for purity and composition •Store DEF in a cool, dry, well-ventilated area, out of direct sunlight.
Is the DEF system activated by the PCM?
• Below -30⁰F (-34⁰C) the DEF system will not be activated by the PCM. • The level sensor consists of 4 electrodes that measure the fluid level through conductivity . The level sensor only has the capability of reading 0%, 33%, 66%, 100%. Included in the level indicator is a temperature sensor.