IAC Valve Opening Coil Circuit Open
2015-2021 Kia Sedona 3.3L V6
Description
The PCM has detected an open circuit in the IAC valve opening coil. The idle air control valve uses separate coils for opening and closing; the opening coil circuit is not completing the electrical path.
Symptoms
- Check Engine Light
- Low idle speed
- Engine stalling at idle
- Rough idle
- Engine dies when coming to a stop
Common Causes
- Broken wire in IAC opening coil circuit
- Corroded IAC connector
- Faulty IAC valve with open coil winding
- PCM connector issue
- Poor ground connection
Diagnostic Steps
- Test IAC valve opening coil resistance with multimeter
- Inspect IAC connector for corrosion or loose pins
- Check wiring continuity from PCM to IAC opening coil
- Test PCM output to IAC opening coil
- Check ground circuit
Repair Notes
Replace the IAC valve if the opening coil is internally open; repair wiring or connector if the external circuit is at fault.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P1505 on Other Vehicles
Common Questions
What does code P1505 mean on a 2015-2021 Kia Sedona?
P1505 stands for "IAC Valve Opening Coil Circuit Open". The PCM has detected an open circuit in the IAC valve opening coil. The idle air control valve uses separate coils for opening and closing; the opening coil circuit is not completing the electrical path.
What are the symptoms of P1505 on a Kia Sedona?
Common symptoms of P1505 include: Check Engine Light, Low idle speed, Engine stalling at idle, Rough idle, Engine dies when coming to a stop.
What causes P1505 on a 2015-2021 Kia Sedona?
Common causes of P1505 include: Broken wire in IAC opening coil circuit, Corroded IAC connector, Faulty IAC valve with open coil winding, PCM connector issue, Poor ground connection.