Pressure Control Solenoid C Malfunction
The P0795 code indicates a malfunction in the pressure control solenoid 'C', which is part of the automatic transmission's hydraulic control system. This solenoid regulates fluid pressure to the transmission clutches and bands, affecting shift timing and quality. The Powertrain Control Module (PCM) detects an electrical or performance issue, such as incorrect resistance or stuck solenoid, leading to improper pressure regulation.
01. Most Common Causes
- Faulty pressure control solenoid C
- Wiring or connector issues (open, short, corrosion)
- Low or dirty transmission fluid
- Internal transmission mechanical failure
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Harsh or delayed shifting
- Transmission slipping or overheating
- Reduced fuel economy
03. Step-by-Step Diagnosis
Step 1: Scan for codes and record freeze frame data.
Step 2: Inspect transmission fluid level and condition; top off or replace if necessary.
Step 3: Test solenoid C resistance and compare to specs; check wiring and connectors for damage.
Step 4: Perform a transmission pressure test to verify solenoid operation.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive long distances as it can cause further transmission damage. Limited driving to a repair shop may be acceptable if shifting is still manageable.
How much does it cost to fix?▼
Repair costs typically range from $150 to $400, including parts and labor. If the solenoid is internal, transmission removal may increase costs.