P1890 on 2011-2025 MINI Countryman — Transmission Adaptive Pressure Table Transfer
1 vehicles · 1 makes · $300-$2,500 repair
How to diagnose and fix P1890: most-reported vehicles
Ranked by owner reports. Each card gives the symptoms, how to confirm the cause, the fix, parts and sources for that vehicle.
MINI Countryman · 2011–2025
The Countryman ALL4 AWD system uses a Haldex-type electromagnetic coupling that can fail due to fluid degradation or pump motor failure. The transfer case can also develop leaks and bearing noise.
Common Symptoms
- AWD warning light
- Grinding noise from undercarriage
- Vibration during turns
- Loss of AWD function
- Fluid leak from transfer case
How to Fix
Service the Haldex coupling fluid every 30k miles (often neglected). If pump has failed, replace the coupling unit. Transfer case leaks require seal replacement or unit replacement.
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P1890 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P1890 mean?
P1890 stands for "Transmission Adaptive Pressure Table Transfer." P1890 is a manufacturer-specific transmission code; on the applicable platform its official definition is 'Transmission Adaptive Pressure Table Transfer,' meaning the control module had a problem storing, transferring, or applying its learned adaptive shift-pressure values. Modern transmissions continuously 'learn' the line pressure needed for smooth shifts and store that data; this code sets when that adaptive learning data can't be properly transferred or is corrupted, often after a module replacement or programming event. On other makes P1890 can refer to different shift-control or CVT issues, so confirm against the specific vehicle. Symptoms typically include harsh, erratic, or poorly adapted shifting.
What are the most common causes of P1890?
The most common causes of P1890 are: Transmission control module not relearned/reprogrammed after service, Corrupted or lost adaptive pressure learning data, Faulty or recently replaced TCM/PCM, Low system voltage interrupting module memory, Wiring or connector faults to the control module, Internal transmission wear preventing successful adaptation, Software calibration that needs updating. The specific cause varies by vehicle.
How much does it cost to fix P1890?
Repair costs for P1890 range from $300 to $2,500, depending on the vehicle and root cause.
Which vehicles are affected by P1890?
Au7o has documented P1890 across 1 vehicle models from 1 manufacturers: MINI.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.