This code relates to the motor circuit. Land Rover’s full-time 4WD systems (especially in the LR3, LR4, Range Rover Sport (L320), and Discovery 4/L319 ) use an electric motor inside the transfer case to regulate clutch pack pressure for torque distribution.
What is P1889-13? In the Land Rover diagnostic ecosystem (using SDD or Pathfinder), P1889-13 refers to a fault within the Transfer Case Control Module (TCCM). Specifically, the -13 suffix indicates an "Open Circuit" condition. land rover p1889-13
Disclaimer: This information is for educational purposes. Always consult Land Rover's official service documentation and safety procedures before performing repairs. This code relates to the motor circuit
No. An open circuit means the pump never runs. Without lubrication/cooling flow inside the transfer case, internal bearings and clutches will fail catastrophically ($3,000–$5,000 repair). Pro Tip from the Shop "I've seen 10 P1889-13 codes in the last year. Six were just the connector corroded from a leaking transfer case output seal. Always check the connector first. Don't sell a pump until you've probed it." Related Codes: P1889-14 (short to ground), P1889-11 (short to power), P1889-64 (signal plausibility error). In the Land Rover diagnostic ecosystem (using SDD
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