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2018
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RAV4 XLE, FWD
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Repair and Diagnosis
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Engine Performance
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Testing & Diagnosis
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SFI System [2AR-FE] (Diagnostic Codes) (Except Hybrid) (4 Of 7)
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SFI System
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DTC P0128: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) [10/2015 - 08/2016]
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Typical Malfunction Thresholds
Typical Malfunction Thresholds
Duration that both of following conditions met
5 seconds or more
(a) Estimated engine coolant temperature
75°C (167°F) or higher
(b) Engine coolant temperature sensor output
Less than 75°C (167°F)