‘B’ Camshaft Position Actuator Control Circuit High Bank 1
Table of contents
P2091 MERCEDES-BENZ Possible Causes
- Faulty Continuously Variable Valve Timing Solenoid
- Continuously Variable Valve Timing Solenoid harness is open or shorted
- Continuously Variable Valve Timing Solenoid circuit poor electrical connection
How do I fix code P2091 MERCEDES-BENZ?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Tech Notes
- Mercedes Benz Code = 0065 (Right camshaft exhaust solenoid) has a short circuit to positive. (P2091)
- Mercedes Benz Code = 0069 (Left camshaft exhaust solenoid) has a short circuit to positive. (P2091)
Cost of diagnosing the P2091 MERCEDES-BENZ code
The cost of diagnosing the P2091 MERCEDES-BENZ code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P2091 MERCEDES-BENZ Description
This fault code is stored in the Engine Control Module (ECM) when a malfunction is detected in the continuously variable valve timing system. Mechanical defects such as incorrect valve timing or low oil level/pressure can cause a fault code to be stored. Mechanical issues should be ruled out before carrying out an further diagnostic tests.