OBD Guide
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P1222

Throttle Motor Circuit

P1222 is an OBD-II diagnostic trouble code meaning: Throttle Motor Circuit. Common causes: throttle motor malfunction, open or short circuit in control circuit. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Unstable engine idling
  • Loss of engine power
  • Check Engine Light Illuminates
  • Acceleration problems
  • The engine may go into emergency mode

Causes

  • Throttle motor malfunction
  • Open or short circuit in control circuit
  • Wiring Harness Problems
  • Engine control unit (ECU) malfunction
  • Mechanical sticking of the throttle valve

How to Fix

  1. Check the condition of the throttle valve and its mechanisms
  2. Check the integrity of the wiring and connectors
  3. Test the throttle motor
  4. Check the operation of the engine control unit
  5. If necessary, replace the throttle assembly

Related codes

P1221P1223P1220

Error P1222 by Vehicle Brand

BMWBuickCadillacChevroletChryslerFordGMGMCLincolnMazdaMercedes-BenzMercuryOldsmobileSaturn

FAQ

What does the P1222 code mean?

P1222 is an OBD-II diagnostic trouble code that indicates: Throttle Motor Circuit

What causes a P1222 error code?

The most common causes of P1222 include: Throttle motor malfunction; Open or short circuit in control circuit; Wiring Harness Problems; Engine control unit (ECU) malfunction.

How do I fix a P1222 diagnostic trouble code?

To fix P1222: Check the condition of the throttle valve and its mechanisms. Check the integrity of the wiring and connectors. Test the throttle motor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1222?

Limited driving only, diagnose soon

How much does it cost to fix P1222?

The estimated repair cost for P1222 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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