P1126
Throttle Control Motor Relay Circuit Open
Severity
⚠️ MediumCan you drive?
Limited driving only, diagnose soon
Approx. repair cost
$6–28 (est.)
Symptoms
- Rough engine idling
- Dips when pressing the gas pedal
- The Check Engine light comes on
- Reduced engine power
- Switching to emergency mode
Causes
- Broken wire in the relay circuit
- Faulty throttle control relay
- Short circuit in the circuit
- Poor contact in connectors
- Engine control unit malfunction
How to Fix
- Check the integrity of the wires in the relay circuit
- Test the throttle control relay
- Check connections and connectors
- Diagnose the engine control unit
- Replace relay if necessary