Error code

OBD2 P2100

OBD2P2100
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Throttle Actuator Control Motor Circuit/Open.

Severity

moderateCan drive but may experience reduced performance and fuel efficiency.

Summary

P2100 indicates an open circuit in the throttle actuator control motor's control system, which is part of the drive-by-wire throttle control located on the throttle body.

Symptoms

  • Engine may enter fail-safe mode
  • Check engine light illuminates

Common Causes

  • Damaged or disconnected wiring and connectors
  • Defective throttle control system relay
  • Faulty throttle actuator motor
  • Defective throttle position sensor
  • Defective throttle pedal position sensor

Diagnosis

  1. Inspect wiring and connectors for damage or corrosion
  2. Check the relay for proper operation
  3. Test the throttle actuator motor, position sensor, and pedal position sensor

Fixes

  • Replace faulty components such as damaged wiring, relays, or sensors

FAQ

What causes P2100?

Common issues include damaged wiring and connectors, defective relay, faulty throttle actuator motor, and malfunctioning position sensors.

Is it safe to drive with P2100?

It is generally drivable but the engine may enter a fail-safe mode for safety reasons until the issue is resolved.

View source

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.

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