Hyundai DTC P1552 – Idle air control (lAC) valve – closing coil circuit – short circuit
DTC P1552 meaning on Hyundai
DTC P1552 indicates a problem with the Idle Air Control (IAC) valve closing coil circuit in a Hyundai vehicle. The Engine Control Module (ECM) monitors this circuit for faults related to the IAC valve operation.
Hyundai DTC P1552 symptoms
Symptoms of DTC P1552 in a Hyundai may include:
- Engine stalling at idle
- Irregular idle speed
- Engine surging
- Check Engine Light illuminated
Hyundai DTC P1552 causes
Common causes of DTC P1552 in a Hyundai include:
- Short circuit in the IAC valve closing coil circuit
- Faulty IAC valve
- Wiring issues in the IAC valve circuit
Hyundai DTC P1552 seriousness
DTC P1552 should be addressed promptly as it can lead to drivability issues and potential engine stalling. Ignoring this fault may result in poor engine performance and increased fuel consumption.
How to diagnose DTC P1552 on Hyundai
To diagnose DTC P1552 on a Hyundai, a mechanic can perform the following steps:
- Use a scan tool to retrieve the DTC and freeze frame data
- Inspect the IAC valve and its wiring for any visible damage
- Check the resistance of the IAC valve coil
- Test the IAC valve circuit for continuity
How to fix DTC P1552 on Hyundai
To fix DTC P1552 on a Hyundai, the following steps can be taken:
- Replace the faulty IAC valve if necessary
- Repair any damaged wiring in the IAC valve circuit
- Clear the DTC and perform a road test to confirm the repair
How to erase DTC P1552 on Hyundai
To erase DTC P1552 on a Hyundai, a scan tool can be used to clear the fault code from the ECM memory. After clearing the code, it is recommended to perform a final check to ensure the DTC does not return.