Hyundai DTC P1553 – Idle air control (lAC) valve – closing coil circuit – open circuit
DTC P1553 meaning on Hyundai
DTC P1553 indicates a fault in the Idle Air Control (IAC) valve closing coil circuit on a Hyundai vehicle. The Engine Control Module (ECM) monitors this circuit for proper operation.
Hyundai DTC P1553 symptoms
Symptoms of DTC P1553 on a Hyundai may include:
- Engine stalling at idle
- Irregular idle speed
- Poor engine performance
Hyundai DTC P1553 causes
Common causes of DTC P1553 on a Hyundai include:
- Faulty Idle Air Control (IAC) valve
- Open or short circuit in the IAC valve closing coil circuit
- Corrosion or poor connections in the wiring related to the IAC valve
Hyundai DTC P1553 seriousness
DTC P1553 can affect the drivability of the vehicle and may lead to engine stalling or rough idling. It is recommended to address this issue promptly to prevent further damage to the engine.
How to diagnose DTC P1553 on Hyundai
To diagnose DTC P1553 on a Hyundai, a mechanic can perform the following steps:
- Use a scan tool to retrieve the DTC and freeze frame data
- Inspect the wiring and connectors related to the IAC valve for any damage or corrosion
- Test the IAC valve for proper operation
- Check for continuity in the IAC valve closing coil circuit
How to fix DTC P1553 on Hyundai
To fix DTC P1553 on a Hyundai, the following steps can be taken:
- Replace the faulty Idle Air Control (IAC) valve
- Repair any open or short circuits in the IAC valve closing coil circuit
- Clean or repair any corroded connectors or wiring related to the IAC valve
How to erase DTC P1553 on Hyundai
To erase DTC P1553 on a Hyundai, a scan tool can be used to clear the code after the underlying issue has been addressed and fixed. This will reset the ECM and turn off the Check Engine Light.
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