P0445 MERCEDES-BENZ - Evaporative Emission Control System Purge Control Valve Circuit Shorted
P0445 MERCEDES-BENZ Possible Causes
- Faulty Evaporative Emission (EVAP) Purge Solenoid Control
- Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted
- Evaporative Emission (EVAP) Purge Solenoid Control circuit poor electrical connection
First diagnose P0445 MERCEDES-BENZ code
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 terminals.
Cost of diagnosing the P0445 MERCEDES-BENZ code
Labor: 1.0The cost of diagnosing the P0445 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.
When is the P0445 MERCEDES-BENZ code detected?- An excessively high voltage signal is sent to Engine Control Module (ECM) through the valve
P0445 MERCEDES-BENZ Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0445 Mercedes-benz DescriptionThe Evaporative Emission System (EVAP) Canister Purge Volume Control Solenoid Valve controls flow rate of fuel vapor from the EVAP canister. The opening of the vapor by-pass passage in the EVAP canister purge volume control solenoid valve changes to control the flow rate. The EVAP canister purge volume control solenoid valve repeats ON/OFF operation according to the signal sent from the Engine Control Module (ECM). The opening of the valve varies for optimum engine control. The optimum value stored in the ECM is determined by considering various engine conditions. When the engine is operating, the flow rate of fuel vapor from the EVAP canister is regulated as the air flow changes.
The EVAP canister purge volume control solenoid valve uses a ON/OFF duty to control the flow rate of fuel vapor from the EVAP canister. The EVAP canister purge volume control solenoid valve is moved by ON/OFF pulses from the ECM. The longer the ON pulse, the greater the amount of fuel vapor that will flow through the valve.
P0445 MERCEDES-BENZ More InformationNeed more information on how to fix the P0445 MERCEDES-BENZ code?
Get Access to Factory Service Manuals
Need more help?Get the P0445 Mercedes-benz code diagnosed by a professional: Find a repair shop in your area
P0445 MERCEDES-BENZ CommentsHelp us improve AutoCodes.com. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the P0445 Mercedes-benz code? Have you replaced any parts?
Any information is appreciated. Thanks