Powertrain
generic / SAE
P085F
Up and Down Shift Switch Circuit Range/Performance
The up/down shift switch reports a range/performance fault. Manual shift requests via paddle or selector cannot be reliably interpreted.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number8 / 5F
Possible causes
- Switch contacts aged high
- High-resistance contact medium
- Sensor element aged beyond calibration window low
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: easy
- DIY: possible
- Estimated cost: 80–400 €
- Estimated time: 0.3–2 h
- Component: up down shift switch
- Component: wiring harness
- Component: tcm
- MIL / check engine light
Sources
References
sae:J2012