P0813
Reverse Output Circuit
P0813 is an OBD-II diagnostic trouble code meaning: Reverse Output Circuit. Common causes: open or short circuit in reverse circuit, gear position sensor malfunction. Estimated repair cost: $17–89.
Symptoms
- Check Engine light comes on
- Problems engaging reverse gear
- The gearbox goes into emergency mode
- Unstable transmission operation
- No signal on the instrument panel when reverse gear is engaged
Causes
- Open or short circuit in reverse circuit
- Gear position sensor malfunction
- Wiring Harness Problems
- Malfunction of the transmission control unit
- Mechanical damage to transmission components
How to Fix
- Check the integrity of the reverse circuit wiring
- Test the gear position sensor
- Check connections and connectors
- Diagnose the transmission control unit
- If necessary, replace faulty components
Related codes
Error P0813 by Vehicle Brand
FAQ
What does the P0813 code mean?
P0813 is an OBD-II diagnostic trouble code that indicates: Reverse Output Circuit
What causes a P0813 error code?
The most common causes of P0813 include: Open or short circuit in reverse circuit; Gear position sensor malfunction; Wiring Harness Problems; Malfunction of the transmission control unit.
How do I fix a P0813 diagnostic trouble code?
To fix P0813: Check the integrity of the reverse circuit wiring. Test the gear position sensor. Check connections and connectors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0813?
Limited driving only, diagnose soon
How much does it cost to fix P0813?
The estimated repair cost for P0813 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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