The code specifically relates to the External Brake Switch Signal . In Land Rover terminology (particularly models like the Discovery 3/LR3, Discovery 4/LR4, and Range Rover Sport), the vehicle monitors the status of the brake pedal position via a switch located at the top of the pedal box.
For Land Rover owners and technicians alike, few things are as frustrating as the illumination of the amber warning lights on the dashboard, often accompanied by a sudden loss of certain vehicle functions. Among the myriad of diagnostic trouble codes (DTCs) that can plague modern Land Rovers, stands out as a specific, yet commonly misunderstood issue. land rover p1889-13
: Refilling the Haldex is messy. Use a large 100ml syringe with a rubber hose to pump the fluid back in. The code specifically relates to the External Brake
Even with perfect electronics, P1889-13 can appear if the pump cannot prime: Among the myriad of diagnostic trouble codes (DTCs)