P1652
Idle Air Control Valve Circuit
2002-2010 Lexus SC 430 4.3L V8 🇩🇪
Moderate SeverityPowertrain
Description
The ECM detected a malfunction in the IAC valve control circuit.
Symptoms
- CEL
- High/low idle
- Erratic idle
- Stalling at idle
- Surging
Common Causes
- Faulty IAC valve
- Carbon in IAC passages
- Damaged wiring
- Poor ECM ground
Diagnostic Steps
- Test IAC valve resistance
- Clean IAC passages
- Inspect wiring
- Check grounds
Repair Notes
Clean or replace IAC valve.
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
P1652 on Other Vehicles
Common Questions
What does code P1652 mean on a 2002-2010 Lexus SC 430?
P1652 stands for "Idle Air Control Valve Circuit". The ECM detected a malfunction in the IAC valve control circuit.
What are the symptoms of P1652 on a Lexus SC 430?
Common symptoms of P1652 include: CEL, High/low idle, Erratic idle, Stalling at idle, Surging.
What causes P1652 on a 2002-2010 Lexus SC 430?
Common causes of P1652 include: Faulty IAC valve, Carbon in IAC passages, Damaged wiring, Poor ECM ground.