P0773 Mercedes-Benz Code - Shift Solenoid 'E' Electrical
Quick Answer
Shift solenoid valve 'E' is turned ON or OFF by the Transmission Control Module (TCM) in response to signals sent from the park/neutral position (PNP) switch, vehicle speed and Engine Control Module (ECM) (throttle opening). Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty shift solenoid 'E' valve. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0773 Mercedes-Benz indicates Shift Solenoid 'E' Electrical.
- Common causes
- Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty shift solenoid 'E' valve.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0773 Mercedes-Benz Description
What are the Possible Causes of the DTC P0773 Mercedes-Benz?
- Low transmission fluid level
- Dirty transmission fluid
- Faulty shift solenoid 'E' valve
- Shift solenoid 'E' valve harness is open or shorted
- Shift solenoid 'E' valve circuit poor electrical connection
How to Fix the DTC P0773 Mercedes-Benz?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0773 Mercedes-Benz code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P0773 Mercedes-Benz code?
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Frequently Asked Questions about P0773 Mercedes-Benz Code
1. What does the OBDII code P0773 mean on a Mercedes-Benz?
P0773 indicates an issue with the Shift Solenoid 'E' circuit, typically an electrical fault that affects the transmission's ability to shift gears properly.
2. What are the common symptoms of the P0773 code in a Mercedes-Benz?
Symptoms may include harsh or delayed shifting, failure to shift into certain gears, transmission stuck in limp mode, and the check engine light being illuminated.
3. What causes the P0773 code in a Mercedes-Benz?
Common causes include a faulty shift solenoid 'E', damaged wiring or connectors in the solenoid circuit, low transmission fluid, or a malfunctioning transmission control module (TCM).
4. Can I still drive my Mercedes-Benz with the P0773 code?
While the car may still be drivable, continuing to drive with this code can cause further transmission damage. It's best to address the issue promptly.
5. How is the P0773 code diagnosed in a Mercedes-Benz?
A technician will typically use a scan tool to confirm the code, inspect the solenoid wiring and connectors for damage, check transmission fluid levels, and test the solenoid's functionality.
6. How do you fix the P0773 code in a Mercedes-Benz?
Repairs may involve replacing the faulty shift solenoid 'E', repairing damaged wiring or connectors, refilling or replacing transmission fluid, or reprogramming the TCM if necessary.
7. How much does it cost to fix the P0773 code in a Mercedes-Benz?
Repair costs can vary, but replacing a shift solenoid typically ranges from $150 to $400, depending on parts and labor rates.
8. Can low transmission fluid cause the P0773 code?
Yes, low or contaminated transmission fluid can impact solenoid operation and trigger the P0773 code.
9. Does resetting the check engine light fix the P0773 code?
No, resetting the light won't fix the underlying issue. The root cause of the code must be diagnosed and repaired to prevent the code from returning.
10. Is the P0773 code specific to Mercedes-Benz?
No, P0773 is a generic OBDII code that can appear in other vehicles, but its diagnosis and repair steps may vary depending on the make and model.
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