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Home >> Toyota >> 2008 >> FJ Cruiser RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 144 (Engine Control System (2UZ-FE)) >> SFI System >> DTC P0128 Thermostat Malfunction >> Typical Malfunction Thresholds

Typical Malfunction Thresholds

WARNING: This page is about a different car, the 2007 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
TYPICAL MALFUNCTION THRESHOLDS CHART

Duration that all of following conditions are met Duration that all of following conditions are met
(a) Estimated ECT 75°C(167°F) or higher
(b) ECT sensor output Lower than 75°C(167°F)