DCT Clutch Actuator B Position Error
2017-2020 Toyota 86 2.0L H4
Description
The DCT clutch B actuator is not reaching the commanded position.
Symptoms
- Check Engine Light
- Harsh shifts in even gears
- Difficulty engaging 2nd gear
- Grinding noise on even gear shifts
- Transmission jerking on upshifts
- Delayed 2nd gear engagement
Common Causes
- Faulty clutch B actuator
- Hydraulic leak in B circuit
- Position sensor failure
- Mechanical binding
- Low hydraulic system pressure
Diagnostic Steps
- Read clutch B actuator position PID
- Command actuator through range
- Check hydraulic fluid
- Inspect for leaks
- Test actuator motor
Repair Notes
Replace clutch B actuator assembly. Perform teach-in procedure.
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
P3043 on Other Vehicles
Toyota 4Runner
2003-2009 4.0L V6
Toyota 4Runner
2003-2009 4.7L V8
Toyota 4Runner
2010-2024 4.0L V6
Toyota Alphard
2023-2025 2.4L I4 Turbo T24A-FTS
Toyota Alphard
2023-2025 2.5L I4 Hybrid A25A-FXS
Toyota Aqua
2011-2021 1.5L I4 Hybrid 1NZ-FXE
Toyota Aqua
2021-2025 1.5L I3 Hybrid M15A-FXE
Toyota Avalon
2005-2012 3.5L V6
Common Questions
What does code P3043 mean on a 2017-2020 Toyota 86?
P3043 stands for "DCT Clutch Actuator B Position Error". The DCT clutch B actuator is not reaching the commanded position.
What are the symptoms of P3043 on a Toyota 86?
Common symptoms of P3043 include: Check Engine Light, Harsh shifts in even gears, Difficulty engaging 2nd gear, Grinding noise on even gear shifts, Transmission jerking on upshifts, Delayed 2nd gear engagement.
What causes P3043 on a 2017-2020 Toyota 86?
Common causes of P3043 include: Faulty clutch B actuator, Hydraulic leak in B circuit, Position sensor failure, Mechanical binding, Low hydraulic system pressure.