OBD Guide

P2100

Throttle Actuator A Control Motor Circuit/Open

P2100 is an OBD-II diagnostic trouble code meaning: Throttle Actuator A Control Motor Circuit/Open. Common causes: open or short circuit in wiring harness, throttle motor malfunction. Estimated repair cost: $56โ€“278.

Severity
๐Ÿ”ด High
Can you drive?
Do not drive โ€” repair immediately
Approx. repair cost
$56โ€“278 (est.)

Symptoms

  • Check Engine Light Is On
  • Reduced engine power
  • Unstable idle speed
  • Gas pedal does not respond properly
  • The car goes into emergency mode

Causes

  • Open or short circuit in wiring harness
  • Throttle motor malfunction
  • Poor contact in connectors
  • Damage to the engine control unit
  • Mechanical fault of the throttle valve

How to Fix

  1. Check the integrity of the wiring harness and connectors
  2. Measure the resistance of the control circuit
  3. Check the operation of the drive motor
  4. Diagnose the control unit
  5. If necessary, replace the throttle assembly

Related codes

Error P2100 by Vehicle Brand

FAQ

What does the P2100 code mean?

P2100 is an OBD-II diagnostic trouble code that indicates: Throttle Actuator A Control Motor Circuit/Open

What causes a P2100 error code?

The most common causes of P2100 include: Open or short circuit in wiring harness; Throttle motor malfunction; Poor contact in connectors; Damage to the engine control unit.

How do I fix a P2100 diagnostic trouble code?

To fix P2100: Check the integrity of the wiring harness and connectors. Measure the resistance of the control circuit. Check the operation of the drive motor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2100?

Do not drive โ€” repair immediately

How much does it cost to fix P2100?

The estimated repair cost for P2100 is $56โ€“278. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version ยท NationStat