P272B
Transmission Range Select Motor Control Circuit Current Too High
The current through the range select motor exceeds the limit. Mechanism is binding or shorted.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: hard
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.
- Shift mechanism binding from corrosionCommon
- Internal short in motor windingPossible
Parts involved
- Range Select Motor
- Shift Mechanism
P272B 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.