P1124
Throttle Control Motor Relay Circuit Short
Severity
⚠️ MediumCan you drive?
Limited driving only, diagnose soon
Approx. repair cost
$6–33 (est.)
Symptoms
- Engine transition to emergency mode
- Engine power limitation
- Unstable idling
- Dips during acceleration
- Check Engine Light Illuminates
Causes
- Short circuit in relay circuit
- Throttle control relay malfunction
- Wiring harness damage
- Contact corrosion
- Problems with the engine control unit
How to Fix
- Check the integrity of the wiring harness
- Check the condition of the throttle control relay
- Check contacts for corrosion
- Test control circuit for short circuit
- If necessary, replace the relay or repair the wiring