P1652 Turbocharger 2 Air Control Solenoid Circuit (Diesel)
What does P1652 mean on a Toyota?
P1652. Turbocharger 2 Air Control Solenoid Circuit (Diesel). This Toyota-enhanced code applies to Land Cruiser diesel with sequential turbos.
Common causes of P1652
- Failed number 2 turbo solenoid
- Open or shorted solenoid circuit
- Sticking secondary turbo actuator
- Corroded connector
- ECM driver fault
How to fix P1652
- Test number 2 solenoid resistance
- Command the secondary turbo and watch response
- Check circuit wiring
- Inspect the actuator for sticking
- Replace the solenoid after circuit proof
Sources and review
- Last updated 2026-09-06.