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Home >> Lexus >> 2017 >> LS 460 Base, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Diagnostic Codes (P0010-P0230) >> SFI System >> DTC P0128: Thermostat [09/2015 - 09/2016] >> Typical Enabling Conditions

Typical Enabling Conditions

Monitor will run whenever these DTCs are not present P0011, P0021 (VVT System - Advance)
P0012, P0022 (VVT System - Retard)
P0016, P0018 (VVT System - Misalignment)
P0013, P0023 (Exhaust VVT Oil Control Valve)
P0014, P0024 (Exhaust VVT System - Advance)
P0015, P0025 (Exhaust VVT System - Retard)
P0017, P0019 (Exhaust VVT System - Misalignment)
P0010, P0020, P2614, P1023, P1360, P1361, P1362, P1363, P1364, P1365, P1366, P1367 (Motor Drive VVT System Control Module)
P0031, P0032, P0051, P0052, P101D, P103D (Air Fuel Ratio Sensor Heater)
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)
P0102, P0103, P010C, P010D (Mass Air Flow Sensor)
P00AC, P00AD, 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, P0174, P0175 (Fuel System)
P11EA, P11EB, P11EC, P11ED, P11EE, P11EF, P11F0, P11F1, P11F2, P11F3, P219A, P219B, P219C, P219D, P219E, P219F, P21A0, P21A1, P21A2, P21A3 (Air-fuel ratio imbalance)
P0301 - P0308 (Misfire)
P0335 (Crankshaft Position Sensor)
P1340 (Camshaft Position Sensor)
P0340, P0342, P0343, P0345, P0347, P0348 (VVT Sensor)
P0365, P0367, P0368, P0390, P0392, P0393 (Exhaust VVT Sensor)
P0351 - P0358 (Igniter)
P0500 (Vehicle Speed Sensor)
Battery voltage 11 V or more
Either of following conditions 1 or 2 is met: -
1. All of following conditions are met: -
  • ECT at engine start - IAT at engine start
-15 to 7°C (-27 to 12.6°F)
  • ECT at engine start
-10 to 56°C (14 to 132.8°F)
  • IAT at engine start
-10 to 56°C (14 to 132.8°F)
2. All of following conditions are met: -
  • ECT at engine start - IAT at engine start
More than 7°C (12.6°F)
  • ECT at engine start
56°C (132.8°F) or less
  • IAT at engine start
-10°C (14°F) or more
Accumulated time with 80 mph (128 km/h) or more of vehicle speed Less than 20 seconds