🔢
P0795 is a high-severity diagnostic code. Reading the freeze-frame data and any paired codes is the fastest way to narrow it down. See top-rated scanners on Amazon ↗
These are statistical causes across ALL vehicles - your exact car may rank differently
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🎯 Top Causes & Probability
55%
#1 - Most Likely
Failed Pressure Control Solenoid C
The PCS C is open or shorted. On most vehicles, this is a valve body solenoid that can be replaced individually or as part of a valve body service.
🔨 Part
$60-$240
👨🔧 Labor
$240-$700
⚡ DIY Difficulty
Hard
25%
#2 - Check First
Contaminated ATF / Debris
Worn-out fluid carries debris that clogs the solenoid screen. A fluid change with new filter sometimes clears the code.
🔨 Part
$40-$140
👨🔧 Labor
$120-$300
⚡ DIY Difficulty
Medium
15%
#3 - Less Common
Internal Harness or Connector Fault
Internal transmission harness chafed against the valve body or shorted to case. Requires pan drop.
🔨 Part
$60-$220
👨🔧 Labor
$240-$600
⚡ DIY Difficulty
Hard
🚗 Most Affected Vehicles
🚫 Is It Safe to Drive?
No. Harsh shifts, slipping, or limp mode are common. Drive only as needed.
🔧 Step-by-Step Diagnosis
- Check ATF level and condition - Toyota WS fluid in 6-speed automatics rarely shows on a dipstick - it has a check plug. Get the level checked properly.
- Scan for paired codes - P0795 alone is usually solenoid. With P0796/P0797 it is harness or valve body.
- Measure solenoid resistance - Back-probe the case connector to measure PCS C resistance. Spec varies but typically 5-15 ohms.
- Drop the pan and inspect - Look at fluid color and debris. Replace solenoid or valve body as needed.
❓ Frequently Asked Questions
Is P0795 a Toyota-specific code?
It applies to any vehicle but is most common on Toyota/Lexus 6-speed automatics.
Can a fluid change fix it?
Sometimes (~20%). Use only Toyota WS fluid or the exact equivalent.
Why does my Toyota not have a dipstick?
Modern Toyota automatics use a check plug instead. Fluid must be checked at the dealer or with a specific procedure.
Is the transmission failing?
Often no - solenoid replacements are common at 100-150k miles and not a sign of total failure.
How much at a Toyota dealer?
Typically $700-$1100 for solenoid or valve body service.