P0801
Reverse Inhibit Control Circuit/Open
P0801 is an OBD-II diagnostic trouble code meaning: Reverse Inhibit Control Circuit/Open. Common causes: broken wiring in the control circuit, faulty reverse lock relay. Estimated repair cost: $6–33.
Symptoms
- Reverse gear does not engage
- Transmission indicator flashes
- The car goes into emergency mode
- Delay when shifting into reverse gear
- Alarm when trying to reverse
Causes
- Broken wiring in the control circuit
- Faulty reverse lock relay
- Problems with the transmission control unit
- Short circuit in the circuit
- Mechanical fault of the gear selector
How to Fix
- Check the integrity of the control circuit wiring
- Test the reverse lock relay
- Check contacts and connectors of the control unit
- Scan the control unit memory for additional codes
- If necessary, replace the relay or restore the wiring
Related codes
Error P0801 by Vehicle Brand
FAQ
What does the P0801 code mean?
P0801 is an OBD-II diagnostic trouble code that indicates: Reverse Inhibit Control Circuit/Open
What causes a P0801 error code?
The most common causes of P0801 include: Broken wiring in the control circuit; Faulty reverse lock relay; Problems with the transmission control unit; Short circuit in the circuit.
How do I fix a P0801 diagnostic trouble code?
To fix P0801: Check the integrity of the control circuit wiring. Test the reverse lock relay. Check contacts and connectors of the control unit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0801?
Yes, but get it checked soon
How much does it cost to fix P0801?
The estimated repair cost for P0801 is $6–33. Actual cost depends on your vehicle, location, and labor rates.
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