P34C6B Camshaft Position Actuator Control Circuit Driver Current/Temperature Too High Bank 1
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P34C6 concerns actuator B, which NTN-SNR assigns to the exhaust camshaft, on bank 1: the stage driving it signals overcurrent or overheating. That presumes an electrically powered exhaust phaser, and none is documented in public sources. The 2022 Mitsubishi Outlander shifts its exhaust camshaft hydraulically via a solenoid valve, which fail-safe holds at a reference angle, and Mercedes-Benz uses B-side codes on its M176/M177 V8 only for CAMTRONIC position feedback, not for driver load. So no manufacturer is known for this code. Should it appear, the logic of the Aisin patent applies: a hot driver board or a motor fighting a stiff phaser pushes current up, and the controller backs off or switches the motor off. Exhaust timing then rests at its default, which mainly costs smoothness and some economy. Bank 2: P34C7.
- What you may notice
- Check engine light on
- Exhaust cam timing on bank 1 fixed in its default position
- Slightly higher fuel use, minor loss of smoothness
- Likely causes
- PossibleExhaust phaser on bank 1 stiff, motor overloaded
- PossibleShort in the motor wiring of actuator B, bank 1
- RareOutput stage for actuator B damaged or overheated
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Hard · Usually a job for a workshop.Typical cost: €80 – €1,300
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.