DTC P202B-13: Reductant Tank Heater Control Circuit Low - Circuit open: Action
- Vehicle Conditions to enable DTC Logging Strategy
- Prioritized Checks to Perform
- Refer to the appropriate SYSTEM WIRING DIAGRAMS information and check the diesel exhaust fluid heater control unit circuit for open circuit, high resistance
- Refer to the appropriate SYSTEM WIRING DIAGRAMS information and check the CAN communication diesel exhaust fluid tank module - DEF heater controller circuit for open circuit, high resistance
- Inspect connectors for signs of water ingress, and pins for damage and/or corrosion
- Check and install a new diesel exhaust fluid heater control unit as required
- Using the Jaguar Land Rover Approved Diagnostic Equipment, clear the DTCs and retest