P34C2B Camshaft Position Actuator Position Sensor A Circuit Low Bank 2
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- Mercedes-Benz documents this code as P34C200: on cylinder bank 2, the feedback line of CAMTRONIC exhaust solenoid 1 is grounded. The code is one of sixteen that bulletin LI05.20-P-080192 groups together for engine types M176 and M177, found in AMG 63 models as well as S-Class, G-Class and GLS cars. Since heat damage turned up on wiring that runs over the firewall beside the windscreen, a harness inspection comes first, before parts are replaced; Mercedes also wants actuators with the older numbers ending 02 03, 16 00, 03 03 and 17 00 exchanged for the current versions and the engine software updated. A low signal can also come from an actuator with internal damage. Bank 1 low: P34BE; bank 2 high: P34C3.
- What you may notice
- Check engine light on
- CAMTRONIC limp-home, exhaust lift on bank 2 fixed
- Likely causes
- LikelyHarness near the windshield heat-damaged, signal to ground
- PossibleSensor in the bank 2 CAMTRONIC actuator shorted
- RareEngine control software outdated
- 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: €100 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.