Powertrain
generic / SAE
P27EC
Transmission Range Control A Position Sensor/Switch Circuit Range/Performance
The position sensor or switch of transmission range control channel A reports a circuit range/performance condition. The TCM cannot verify the actuator position reliably.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number7 / EC
Possible causes
- Dirty or oxidised switch contacts medium
- Sensor mounting misadjusted 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: medium
- DIY: shop recommended
- Estimated cost: 200–1200 €
- Estimated time: 1–4 h
- Component: range control position sensor a
- Component: wiring harness
- Component: tcm
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012