DTC B1DBE-64: Cabin Heater Water Pump - Signal plausibility failure: Action
- Refer to the electrical circuit diagrams and check the passenger compartment heater coolant pump circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary
- Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new passenger compartment heater coolant pump as necessary