P080A
Clutch Position Not Learned
After a clutch replacement or sensor replacement the TCM has not run a successful clutch-position learn cycle. Without learned end-stops the TCM cannot accurately command engagement points, leading to slipping or harsh take-up. A scan-tool guided learn procedure must be performed.
- 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.
- Learn cycle not performed after serviceCommon
Parts involved
- Clutch Position Sensor A
- TCM
P080A 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.