Possible Causes
- Purpose of the DTC
- The reductant heater control module has detected the urea pressure line heater sensor signal rising the maximum valid limit
- Electrical Cause
- Mechanical Cause
- Control Module Cavity
- Monitor Description
- The reductant heater control module has detected the urea pressure line heater sensor signal rising the maximum valid limit
- Prioritized List of Possible Causes
- The powertrain control module has measured current flow above a specified range
- Diesel exhaust fluid heater sensor circuit short circuit to ground, short circuit to power, open circuit, high resistance
- Connector is disconnected, connector pin is backed out, connector pin corrosion
- Diesel exhaust fluid heater sensor failure