FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Scantool Diagnostics





P0128 Coolant Thermostat (Coolant Temperature below Thermostat Regulating Temperature)

Scantool Diagnostics

Monitor GDS Data

1. Connect GDS to Data Link Connector (DLC)
2. Warm up the engine to normal operating temperature.
3. Monitor "ECTS" parameter on GDS.




4. Is the "ECTS" parameter displayed correctly?