P08A4
Gear Lever X Position Sensor 1/2 Correlation
The signals of the gear lever X-axis position sensors 1 and 2 do not correlate within the calibrated tolerance.
- 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.
- One sensor characteristic driftedCommon
- Harness incorrectly swappedPossible
Parts involved
- Gear Lever X Position Sensor 1
- Gear Lever X Position Sensor 2
- TCM
P08A4 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.