OBD
P0802
Transmission Control System MIL Request Circuit/Open
What it means
P0802 means Transmission Control System MIL Request Circuit/Open.
Check these first
- An open in the MIL request circuit
- A faulty PCM
- A faulty transmission control module
- Corrosion at the MIL request connector
- A faulty MIL lamp
What to do next
- Read the MIL request circuit state on a scan tool
- Test the MIL request circuit for an open
- Check the connector and MIL lamp
- Check the transmission control system for other codes
- Replace the PCM if the circuit tests good
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.