P07B6
Transmission Park Position Sensor/Switch A Circuit Performance High
Sensor A is electrically intact but the high-end value drifts — for example a value above the calibrated non-Park range while the lever actually is in Park.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: 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
Common causes
Ordered by how often each turns out to be the cause.
- Aged sensor with high-end driftCommon
Parts involved
- Park Position Sensor A
P07B6 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.