P1634low severityPowertrain
Accelerator Pedal Kickdown Switch
on 2011 Mini Cooper 1.6L I4 · FWD
What this code means
The DME detected a fault in the accelerator pedal kickdown switch circuit. The kickdown switch signals full throttle request for transmission downshift. This is a convenience feature fault rather than a driveability concern.
Symptoms
- No kickdown during full throttle acceleration
- Transmission may not downshift when floored
- Check Engine Light
Common causes
- Faulty kickdown switch in accelerator pedal
- Wiring issue to kickdown switch
- Accelerator pedal module failure
- Connector corrosion
Diagnostic steps
- Test kickdown switch signal with scan tool while pressing pedal fully
- Inspect accelerator pedal connector
- Test switch continuity
- Check wiring to DME
Repair notes
Replace the accelerator pedal module if the kickdown switch is integrated and has failed.
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