P1509high severityPowertrain
Idle Air Control Valve Circuit Short
on 2009 Acura RL 3.5L V6 · AWD
What this code means
Short circuit in the IAC valve coil.
Symptoms
- CEL
- Erratic idle
- RPM bouncing
- Stalling at idle
Common causes
- Faulty IAC valve internal short
- Shorted wiring
- Damaged connector
Diagnostic steps
- Test IAC resistance
- Check for shorts
- Inspect connector
- Test PCM driver
Repair notes
Replace IAC valve.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1