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Home >> Toyota >> 2019 >> Sienna SE, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 16 (Engine Control System [2GR-FE] - Diagnostic Codes (1 Of 3)) >> SFI System >> DTC P0128: Thermostat [12/2015 - 08/2016] >> Typical Enabling Conditions

Typical Enabling Conditions

WARNING: This page is about a different car, the 2016 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.
Monitor runs whenever following DTCs are not present P0010, P0020 (Camshaft timing oil control valve bank 1, 2)
P0011, P0021 (VVT system bank 1, 2 - advance)
P0012, P0022 (VVT system bank 1, 2 - retard)
P0013, P0023 (Exhaust oil control valve bank 1, 2)
P0014, P0024 (Exhaust VVT system bank 1, 2 - advance)
P0015, P0025 (Exhaust VVT system bank 1, 2 - retard)
P0016, P0018 (VVT system bank 1, 2 - misalignment)
P0017, P0019 (Exhaust VVT system bank 1, 2 - misalignment)
P0031, P0032, P0051, P0052, P101D, P103D (Air fuel ratio sensor heater)
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)
P014C, P014D, P014E, P014F, P015A, P015B, P015C, P015D, P2195, P2196, P2197, P2198, P2237, P2238, P2239, P2240, P2241, P2242, P2252, P2253, P2255, P2256 (Air fuel ratio sensor)
P0171, P0172, P0174, P0175 (Fuel system)
P0300, P0301, P0302, P0303, P0304, P0305, P0306 (Misfire)
P0335 (Crankshaft position sensor)
P0340, P0342, P0343, P0345, P0347, P0348 (VVT sensor)
P0351, P0352, P0353, P0354, P0355, P0356 (Igniter)
P0365, P0367, P0368, P0390, P0392, P0393 (Exhaust VVT sensor)
P0500 (Vehicle speed sensor)
P219A, P219B, P219C, P219D, P219E, P219F, P21A0, P21A1 (Air fuel ratio imbalance)
Battery voltage 11 V or higher
Either of the following conditions is met: Condition 1 or 2
1. All of the following conditions are met: Conditions (a), (b) and (c)
(a) Engine coolant temperature at engine start - intake air temperature at engine start -15°C (5°F) or more, and 7°C (44.6°F) or less
(b) Engine coolant temperature at engine start -10°C (14°F) or more, and 56°C (133°F) or less
(c) Intake air temperature at engine start -10°C (14°F) or more, and 56°C (133°F) or less
2. All of the following conditions are met: Conditions (d), (e) and (f)
(d) Engine coolant temperature at engine start - intake air temperature at engine start More than 7°C (44.6°F)
(e) Engine coolant temperature at engine start 56°C (133°F) or less
(f) Intake air temperature at engine start -10°C (14°F) or more
Accumulated time that vehicle speed is 128 km/h (80 mph) or more Less than 20 seconds