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Home >> Audi >> 2015 >> A4 Prestige >> Repair and Diagnosis >> External Pages >> Different car >> Section 379 (Engine Control System (Diagnostic Codes (P0010-P0172))) >> SFI System >> DTC P0128: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) [08/2013 - ] >> Typical Enabling Conditions

Typical Enabling Conditions

WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
Monitor runs whenever the following DTCs are not stored P0010 (VVT oil control valve)
P0011 (VVT system - advance)
P0012 (VVT system - retard)
P0016 (VVT system - misalignment)
P0031, P0032, P0101D (Air fuel ratio sensor heater)
P0102, P0103 (Mass air flow meter)
P0107, P0108 (Manifold absolute pressure)
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, P015A, P015B, P2195, P2196, P2237, P2238, P2239, P2252, P2253 (Air fuel ratio 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)
P0401 (EGR system (closed))
P219A (Air fuel ratio imbalance)
Auxiliary battery voltage 11 V or higher
Either of the following conditions is met 1 or 2
1. All of the 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 the following conditions are met -
Engine coolant temperature at engine start - Intake air temperature at engine start Higher 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 higher
Accumulated time at vehicle speed of 128 km/h (80 mph) or more Less than 20 seconds