What are the common causes of P0655?

A failed engine hot warning lamp. An open or short in the lamp output circuit. Corrosion in the lamp wiring or connector. A failed instrument cluster. A faulty PCM output.

Check the engine hot warning lamp and its fuse. Inspect the lamp output wiring and connector. Command the lamp on with a scan tool. Check the cluster ground. Repair the output circuit if the lamp does not light. Clear the code and retest.

P0655

Engine Hot Lamp Output Control Circuit

System: Computer output circuits (P code)
Lamp: Check Engine Light
Category: Powertrain - Computer and Auxiliary Controls

What it means

P0655 means Engine Hot Lamp Output Control Circuit.

Check these first

A failed engine hot warning lamp
An open or short in the lamp output circuit
Corrosion in the lamp wiring or connector
A failed instrument cluster
A faulty PCM output

What to do next

Check the engine hot warning lamp and its fuse
Inspect the lamp output wiring and connector
Command the lamp on with a scan tool
Check the cluster ground
Repair the output circuit if the lamp does not light
Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.