P0801 — Reverse Inhibit Control Circuit/Open

What Does P0801 Mean?

P0801 is a diagnostic trouble code indicating: Reverse Inhibit Control Circuit/Open. This code relates to the transmission system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of P0801

⚠️ Check Engine Light (MIL) illuminated
⚠️ Erratic Reverse Inhibit readings
⚠️ Related system operating intermittently
⚠️ Harsh or delayed shifting

Common Causes

🔍 Wiring issue in Reverse Inhibit circuit (damaged, chafed, or corroded)
🔍 Faulty Reverse Inhibit connector or terminal
🔍 Failed Reverse Inhibit
🔍 ECM/PCM connection issue

Frequently Asked Questions

What does P0801 mean?

P0801 indicates: Reverse Inhibit Control Circuit/Open. The vehicle's computer has detected that the Reverse Inhibit is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P0801?

Only short distances if absolutely necessary. P0801 affects a critical system and should be diagnosed within a few days to avoid further damage.

How much does it cost to fix P0801?

Repair costs for P0801 typically range from $150 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 repair Reverse Inhibit wiring and connectors
🔧 Replace faulty Reverse Inhibit

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.

P0801: Reverse Inhibit Control Circuit/Open