What is P0796 : Engine Error code Causes Explained
Automatic transmission pressure control solenoid “C” issues cause the P0796 engine trouble code. A damaged solenoid, wiring issue, low or filthy transmission fluid, or a malfunctioning transmission control module (TCM) might cause shifting or transmission slippage.
How to Identify a DTCs Number
Onboard diagnostic (OBD) systems use DTCs to diagnose vehicle faults. The automatic transmission’s Pressure Control Solenoid “C” Performance or Stuck Off problem code is P0796.
The 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.
This error typically occurs due to low transmission fluid, dirty or clogged fluid passages, or a malfunctioning pressure control solenoid.
Causes of P0796 Code:
- A faulty pressure control solenoid C:
If the solenoid is stuck, damaged, or fails to respond electrical signals, it can cause improper hydraulic pressure control. - Dirty transmission fluid:
Fluid that is contaminated with dirt, debris, or metal shavings can prevent the solenoid from operating properly. - A clogged transmission filter.
A clogged transmission filter can restrict fluid flow, which affects the solenoid’s performance. - A defective transmission valve body.
If it’s worn or defective, it may not allow the pressure control solenoid to regulate fluid pressure correctly. - A faulty transmission pump:
If the TCM malfunctions, it may send incorrect signals to the solenoids, causing transmission performance issues - Damaged wiring or connectors:
Damaged, corroded, or loose wiring and connectors can lead to electrical issues that prevent the solenoid from functioning correct - Restrictions in the hydraulic passages:
If the solenoid is stuck, damaged, or otherwise fails to respond to electrical signals, it can cause improper hydraulic pressure control. - A fault in the PCM:
The PCM or PCM wiring and connections may be defective.
Risk Level of P0796 Error Code:
A High-Risk Level for this code typically means the issue can lead to serious transmission damage or unsafe driving conditions
If your vehicle is showing a High-Risk Level P0796 error, avoid driving until the issue is diagnosed and resolved to prevent costly transmission damage or unsafe driving conditions
Common Car Brands Affected by P0796 Code:
The P0796 engine error code is commonly found in follwing List.
- Chevrolet
- Honda
- GMC
Video: P0796 Engine Error code
FAQ’s
What does the P0796 engine code mean?
P0796 indicates a problem with the pressure control solenoid “C” in the automatic transmission, causing shifting issues.
What causes the P0796 error code?
Common causes include a faulty pressure control solenoid, dirty transmission fluid, low fluid levels, or internal transmission wear.
Which vehicles are affected by P0796?
This code is commonly found in GMC, Chevrolet and Honda vehicles with automatic transmissions.
What symptoms are common with P0796?
Symptoms include erratic or delayed shifting, transmission slipping, poor acceleration, and the check engine light turning on.