Powertrain
generic / SAE
P07B5
Transmission Park Position Sensor/Switch A Circuit Performance/Low
Sensor A is electrically intact but its low-end value drifts — for example a value below the calibrated Park threshold while the lever is mechanically out of Park. The TCM cannot fully trust the Park reading.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number7 / B5
Possible causes
- Aged Hall element with offset drift high
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: 120–600 €
- Estimated time: 0.5–2 h
- Component: park position sensor a
- MIL / check engine light
Sources
References
sae:J2012