P2100 OBD II Trouble Code Throttle Actuator A Control Motor Circuit Open

Symptoms of P2100 OBD II Trouble Code

  • Malfunction Indicator Light On
  • Fixed idle speed
  • Unable to accelerate engine

Common Causes of P2100 OBD II Trouble Code

  • Open in the circuit to the Throttle Actuator - likely
  • Failed Throttle Actuator ? failed open circuit electrically - likely
  • Failed PCM - unlikely

Severity of P2100 OBD II Trouble Code

Severity is usually severe due to its impact on the cooling system. Because this is usually an electrical failure, the PCM cannot fully compensate for it. Partial compensation usually means that the engine has a fixed idle speed (usually around 1000 ? 1200 rpm).