Possible Causes
- Purpose of the DTC
- To monitor DEF back flow pump for open circuit
- Electrical cause
- Mechanical cause
- Control Module Cavity
- Circuit reference 0_T_RAPM. DEF tank module
- Monitor Description
- Diesel exhaust fluid tank module-DEF back flow pump circuit open circuit, high resistance
- Prioritised List of Possible Causes
- The powertrain control module has determined an open circuit via lack of bias voltage, low current flow, no change in the state of an input in response to an output
- Diesel exhaust fluid tank module circuit open circuit, high resistance - DEF back flow pump
- Connector is disconnected, connector pin is backed out, connector pin corrosion