What is P0773 : Engine Error code Causes Explained
This Guide covers the P0773 engine trouble code, its causes, and its effects on vehicle performance. This diagnostic trouble code signals transmission difficulties early, preventing costly repairs and guaranteeing correct upkeep.
How to Identify a DTCs Number
Understand, this trouble codes (DTCs) are 5 characters: 1 letter, 4 numbers. P-Powertrain indicates the fault code’s location. Generic or manufacturer-specific codes are indicated by the first digit. The second digit denotes the subsystem (7=transmission). The last two numbers describe the issue.
To identify a DTC like P0773, use an OBD-II scanner connected to your vehicle’s diagnostic port. The scanner reads stored trouble codes from the computer and displays the DTC, helping pinpoint the exact issue for repair
Causes of P0773 Error Code:
- Faulty Shift Solenoid:
The solenoid may be failing, blocking torque converter lock-up. - Wiring Problems:
Wiring issues or poor connections can disrupt solenoid function. - Defective TCM:
A faulty TCM can send wrong signals, affecting solenoid control. - Transmission Fluid Issues:
Low or dirty transmission fluid can disrupt solenoid function, causing P0773. - Dirty Transmission Filter.
A clogged transmission filter can restrict fluid flow, causing solenoid issues and P0773.
Risk Level of P0773 Error Code:
The P0773 engine error code indicates a problem with the torque converter clutch (TCC) solenoid in the transmission system, and its high-risk level arises because a malfunction can lead to serious transmission damage, poor fuel efficiency, or engine stalling.
Immediate inspection and repairs are strongly recommended to prevent further damage and ensure vehicle safety.
Common Car Brands Affected by P0773 Code:
The P0773 code can affect various vehicles, it is most commonly associated with:
- Ford
- Toyota
- Hyundai
- Chevy
Video: P0773 Engine Error code
FAQ’s
What is P0773 Engine Error Code?
P0773 is a Diagnostic Trouble Code (DTC) indicating a malfunction in the Torque Converter Clutch (TCC) Solenoid “C” Circuit, affecting automatic transmission performance.
What causes the P0773 Engine Error Code?
This error can be triggered by a faulty TCC solenoid, damaged wiring, low transmission fluid, or a malfunctioning transmission control module.
What is the Risk Level of P0773 Engine Error Code?
The risk level is high because it can cause transmission slipping, overheating, or poor fuel efficiency, potentially leading to serious transmission damage if not addressed promptly.
Which vehicles are affected by P0773 Engine Error Code?
This code commonly appears in Ford, Toyota, Hyundai and Chevy vehicles equipped with automatic transmissions.