Hyundai DTC P1506 – Idle air control (lAC) valve – opening coil circuit – short circuit
DTC P1506 meaning on Hyundai
DTC P1506 indicates a problem with the Idle Air Control (IAC) valve circuit in a Hyundai vehicle. Specifically, it points to a short circuit in the opening coil circuit of the IAC valve.
Hyundai DTC P1506 symptoms
Symptoms of DTC P1506 in a Hyundai may include:
- Engine stalling at idle
- High or erratic idle speed
- Poor acceleration
- Check Engine Light illuminated on the dashboard
Hyundai DTC P1506 causes
Common causes of DTC P1506 in a Hyundai include:
- Short circuit in the IAC valve opening coil circuit
- Faulty IAC valve
- Wiring issues in the IAC valve circuit
Hyundai DTC P1506 seriousness
DTC P1506 should be addressed promptly as it can lead to drivability issues and potential engine stalling. Ignoring this code may result in poor vehicle performance and fuel efficiency.
How to diagnose DTC P1506 on Hyundai
To diagnose DTC P1506 on a Hyundai, a mechanic may perform the following steps:
- Use a scan tool to retrieve the trouble codes
- Inspect the IAC valve and its wiring for any visible damage
- Test the IAC valve for proper operation
- Check the continuity of the IAC valve circuit
How to fix DTC P1506 on Hyundai
To fix DTC P1506 on a Hyundai, the following steps may be taken:
- Replace the faulty IAC valve
- Repair any damaged wiring in the IAC valve circuit
- Clear the trouble codes from the vehicle’s computer
- Perform a test drive to ensure the issue is resolved
How to erase DTC P1506 on Hyundai
To erase DTC P1506 on a Hyundai, you can use a scan tool to clear the trouble codes stored in the vehicle’s computer. Once the codes are cleared, the Check Engine Light should turn off. It is important to address the underlying issue causing the code before clearing it.
Recommended tools for Hyundai diagnostics
Explore our expert picks: The Best OBD2 Scanners for 2025
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.