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Home >> Toyota >> 2011 >> Matrix Base, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Control System (2ZR-FE) (Diagnostic Codes (P0010 - P0368) & Circuit Tests) >> SFI System >> DTC P0128: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) >> Typical Enabling Conditions

Typical Enabling Conditions

Monitor runs whenever following DTCs not present P0010 (VVT Oil Control Valve)
P0011 (VVT System - Advance)
P0012 (VVT System - Retard)
P0013 (Exhaust VVT Oil Control Valve)
P0014 (Exhaust VVT System - Advance)
P0015 (Exhaust VVT System - Retard)
P0016 (VVT System - Misalignment)
P0017 (Exhaust VVT System - Misalignment)
P0031, P0032 (Air Fuel Ratio Sensor Heater - Sensor 1)
P0102, P0103 (Mass Air Flow Meter)
P0112, P0113 (Intake Air Temperature Sensor)
P0115, P0117, P0118 (Engine Coolant Temperature Sensor)
P0120, P0121 P0122, P0123, P0220, P0222, P0223, P2135 (Throttle Position Sensor)
P0171, P0172 (Fuel System)
P0301, P0302, P0303, P0304 (Misfire)
P0335 (Crankshaft Position Sensor)
P0340, P0342, P0343 (Camshaft Position Sensor)
P0351, P0352, P0353, P0354 (Igniter)
P0365, P0367, P0368 (Exhaust Camshaft Position Sensor)
P0500 (Vehicle Speed Sensor)
P2195, P2196, P2237, P2238, P2239, P2252, P2253, P2A00 (Air Fuel Ratio Sensor - Sensor 1)
P219A (Air Fuel Ratio Imbalance)
Battery voltage 11 V or more
Either of following conditions 1 or 2 is met: -
1. All of following conditions are met: -
  • Engine coolant temperature at engine start - Intake air temperature at engine start
-15 to 7°C (-27 to 12.6°F)
  • Engine coolant temperature at engine start
-10 to 56°C (14 to 133°F)
  • Intake air temperature at engine start
-10 to 56°C (14 to 133°F)
2. All of following conditions are met: -
  • Engine coolant temperature at engine start - Intake air temperature at engine start
More than 7°C (12.6°F)
  • Engine coolant temperature at engine start
56°C (133°F) or less
  • Intake air temperature at engine start
-10°C (14°F) or more
Accumulated time at 80 mph (128 km/h) or more of vehicle speed Less than 20 seconds