OBD
P0883
TCM Power Input Signal High
What it means
P0883 means TCM Power Input Signal High.
Check these first
- A charging system that overcharges
- A short to voltage in the TCM power wire
- A failed voltage regulator
- A faulty battery
What to do next
- Read TCM voltage on a scan tool
- Check the charging system output
- Test the TCM power wire for a short to voltage
- Check the voltage regulator
- Repair the power feed if the voltage is high
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.