LEMON Manuals: Even more car manuals for everyone: 1960-2025

Home >> Pontiac >> 2001 >> Firebird Formula, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Self-Diagnostics - 5.7L >> Diagnostic Tests >> DTC P1258: Engine Coolant OVERTEMPERATURE - Protection Mode Active >> Code Enable Criteria

April 5, 2026: LEMON Manuals is launched! Read the announcement.

Code Enable Criteria

For DTC to run, engine must be running. DTC will set when PCM detects an engine over temperature condition.

scientia non olet · About LEMON Manuals