OBD-II Error Code P0801: How to Fix Reverse Inhibit Control Circuit

Q: Can I drive with error code P0801?

It is not recommended. The vehicle may not shift into reverse, or the transmission may behave unpredictably, which could be dangerous.

Q: What does the reverse inhibit control circuit do?

It prevents the transmission from engaging reverse unless certain conditions are met (e.g., brake pedal pressed, vehicle speed low). This prevents accidental reverse engagement.

Q: How much does it cost to fix P0801?

DIY costs range from $20 for a brake light switch to $100+ for a solenoid or wiring repair. Professional repair could be $200-$500 depending on labor.

Q: Will clearing the code fix P0801?

Clearing the code will turn off the check engine light temporarily, but if the underlying issue isn't fixed, the code will return.

Q: What vehicles are affected by P0801?

Any OBD-II equipped vehicle with an automatic transmission can trigger this code, but it's common in GM, Ford, and Chrysler models.

Abstract

Error code P0801 means the powertrain control module (PCM) has detected a malfunction in the reverse inhibit control circuit. This circuit prevents the transmission from shifting into reverse under unsafe conditions. When this code appears, the vehicle may not shift into reverse or may have erratic transmission behavior.