Possible Causes
- Purpose of the DTC
- To monitor DEF tank level sensor signal
- Electrical Cause
- Mechanical Cause
- Control Module Cavity
- Monitor Description
- DEF tank level sensor signal is not updated
- Prioritized List of Possible Causes
- Overfilled DEF tank - Refer to Exhaust system - DIAGNOSIS AND TESTING
and refer to functionallity of level sensor (possibility that the sensor reads 0 if over filled).
- Customer has over filled the DEF tank
- The powertrain control module detected plausibility failures
- Diesel exhaust fluid tank module circuit short circuit to ground, short circuit to power, open circuit, high resistance
- Connector is disconnected, connector pin is backed out, connector pin corrosion