OBD-II FAULT CODE
B1486

Brake Pedal Input Circuit Ground Short

Reference information for B1486. Because this is manufacturer-specific, confirm the exact definition for the vehicle before using the diagnostic guidance below.

Manufacturer-specific code

This code can have different meanings depending on vehicle make, model and year. Treat the definition below as a reference and confirm it with OEM service information before diagnosis or repair.

BodySystem
Throttle / pedal sensorCategory
HighSeverity
  • Body/accessory warning lamp or feature not working
  • Reduced power / limp mode possible
  • Hesitation or unstable idle
  • Dirty throttle body
  • Faulty throttle/pedal position sensor
  • Wiring/connector fault
  • Adaptation needed
  • Check related fuses, connectors, grounds and switch/module power supply
  • Inspect throttle body and connector
  • Check sensor correlation data with scan tool
  • Clean throttle body if appropriate, repair wiring, perform throttle relearn, replace failed sensor/body after testing
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Disclaimer: Information is provided for general guidance only and may not apply to all vehicles. Always consult a qualified technician.