Accelerator Pedal Kickdown Switch
1992-1998 BMW 325i E36 2.5L I6 M50 🇨🇦
Description
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.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P1634 on Other Vehicles
Common Questions
What does code P1634 mean on a 1992-1998 BMW 325i E36?
P1634 stands for "Accelerator Pedal Kickdown Switch". 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.
What are the symptoms of P1634 on a BMW 325i E36?
Common symptoms of P1634 include: No kickdown during full throttle acceleration, Transmission may not downshift when floored, Check Engine Light.
What causes P1634 on a 1992-1998 BMW 325i E36?
Common causes of P1634 include: Faulty kickdown switch in accelerator pedal, Wiring issue to kickdown switch, Accelerator pedal module failure, Connector corrosion.