P1519moderate severityPowertrain
Idle Air Control Valve Circuit Failure
on 2018 Acura TLX 2.4L I4 · AWD
What this code means
Additional fault condition in the IAC valve circuit.
Symptoms
- CEL
- Unstable idle
- Stalling
- Speed too high or low
Common causes
- Faulty IAC valve
- Wiring issues
- Connector problems
- Vacuum leak
Diagnostic steps
- Test IAC valve
- Inspect wiring
- Check connector
- Check for vacuum leaks
Repair notes
Replace IAC valve or repair wiring.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1