DTC B1D26-13: Combustion Air Blower - Circuit open: Action

NOTE:

The fuel fired booster heater contains many serviceable components. It should not be necessary to install a new fuel fired booster heater to rectify this fault.
To check the operation of the fuel fired booster heater, perform routine - Auxiliary Heater (AHCM) Activation Test (0x900A). Repeat the routine if excessive smoke is emitted from the fuel fired booster heater exhaust.

Check the fuel fired booster heater air intake and the fuel fired booster heater blower for sediment or debris. Remove any foreign matter from the air intake and blower assembly. Using the Jaguar Land Rover approved diagnostic equipment, clear the Diagnostic Trouble Code(s) and retest
Refer to the appropriate system wiring diagrams and check the fuel fired booster heater blower circuit for open circuit, high resistance. Repair the wiring harness or install a new fuel fired booster heater blower as necessary