P1222

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

Error P1222 by Vehicle Brand