Powertrain
generic / SAE
P0801
Reverse Inhibit Control Circuit
The TCM detects an electrical fault in the reverse inhibit solenoid circuit, which prevents engagement of reverse at high vehicle speeds.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number8 / 01
Possible causes
- Solenoid failed high
- Wiring or connector fault medium
Symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 200–900 €
- Estimated time: 1–4 h
- Component: reverse inhibit solenoid
- Component: wiring harness
- Component: tcm
- MIL / check engine light
Sources
References
sae:J2012