P1889 on the 2009 Land Rover LR2
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.
| LTB00478NAS2 | 2017-05-26. Service bulletin. "SITUATION: A ‘TRANSMISSION FAULT-TRACTION REDUCED’ MESSAGE MAY BE DISPLAYED IN THE MESSAGE CENTER AND DIAGNOSTIC TROUBLE CODE (DTC) P1889-14 OR P0961-62 MAY BE STORED IN THE REAR DIFFERENTIAL CONTROL MODULE (RDCM). NOTE: ANY REPAIRS OTHER THAN CONFIGURING THE REAR DIFFERENTIAL CONTROL MODULE (RDCM) MUST BE CARRIED OUT AS A SEPARATE CLAIM. CAUSE: THIS MAY BE CAUSED BY THE REAR DIFFERENTIAL CONTROL MODULE (RDCM) DIAGNOSTIC FUNCTION BEING TOO SENSITIVE, LEADING TO THE FALSE DETECTION OF OPEN CIRCUITS OR STICKING VALVES IN THE ACTIVE ON-DEMAND COUPLING ASSEMBLY." |
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1 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.