P0799 — Pressure Control Solenoid C Intermittent

What Does P0799 Mean?

P0799 is a diagnostic trouble code indicating: Pressure Control Solenoid C Intermittent. This code relates to the transmission system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of P0799

⚠️ Check Engine Light (MIL) illuminated
⚠️ Pressure Control Solenoid C signal cutting in and out
⚠️ Related system working sometimes but not consistently
⚠️ Harsh or delayed shifting

Common Causes

🔍 Loose or intermittent connection at Pressure Control Solenoid C
🔍 Wire chafing causing intermittent contact
🔍 Pressure Control Solenoid C failing under heat or vibration
🔍 Corroded connector pins with partial contact

Frequently Asked Questions

What does P0799 mean?

P0799 indicates: Pressure Control Solenoid C Intermittent. The vehicle's computer has detected that the Pressure Control Solenoid C is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P0799?

Only short distances if absolutely necessary. P0799 affects a critical system and should be diagnosed within a few days to avoid further damage.

How much does it cost to fix P0799?

Repair costs for P0799 typically range from $30 to $500, depending on the root cause. Simple wiring or connector repairs are on the lower end, while component replacement costs more. A proper diagnosis ($80–$150 at most shops) will identify the exact cause before committing to expensive parts.

What To Do Next

Possible Fixes

🔧 Inspect and reseat all Pressure Control Solenoid C connectors
🔧 Repair chafed or damaged wiring in Pressure Control Solenoid C circuit
🔧 Replace Pressure Control Solenoid C if failing intermittently

1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

P0799: Pressure Control Solenoid C Intermittent