P0508
Idle Air Control System Circuit Low
1997-2000 BMW 528i E39 2.8L I6 🇦🇺
Moderate SeverityPowertrain
Description
Low voltage in IAC circuit.
Symptoms
- Low idle
- Stalling
Common Causes
- Short to ground
- Faulty IAC motor
- Wiring issue
Diagnostic Steps
- Test IAC voltage
- Check for shorts
Repair Notes
Replace IAC or repair wiring.
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
P0508 on Other Vehicles
Common Questions
What does code P0508 mean on a 1997-2000 BMW 528i E39?
P0508 stands for "Idle Air Control System Circuit Low". Low voltage in IAC circuit.
What are the symptoms of P0508 on a BMW 528i E39?
Common symptoms of P0508 include: Low idle, Stalling.
What causes P0508 on a 1997-2000 BMW 528i E39?
Common causes of P0508 include: Short to ground, Faulty IAC motor, Wiring issue.