LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2007 >> GS 430 >> Repair and Diagnosis >> Engine Performance >> Engine Control System (3UZ-FE) >> SFI System >> DTC P0128 Thermostat Malfunction >> Typical Enabling Conditions
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Typical Enabling Conditions

TYPICAL ENABLING CONDITIONS

Monitor will run whenever this DTC is not present P0010, P0020 (VVT VSV 1, 2)
P0011 (VVT system 1 - advance)
P0012 VVT system 1 - retard)
P0021 VVT system 2 - advance)
P0022 VVT system 2 - retard)
P0031, P0032, P0051, P0052 (heated oxygen sensor 1)
P0100 - P0103 (MAF meter)
P0110 - P0113 (IAT sensor)
P0115 - P0118 (ECT sensor)
P0125 (insufficient ECT for closed loop)
P0130 - P0153 (heated oxygen sensor 1)
P0134, P0154 (heated oxygen sensor 1)
P0171, P0172 (fuel system)
P0300 - P0308 (misfire)
P0335 (crankshaft position sensor)
P0340 - P0345 (VVT sensor 1, 2)
P0351 - P0358 (igniter)
P0500 (VSS)
Battery voltage 11 V or higher
One of the following conditions 1 or 2 is met -
1. All of the following conditions (a), (b) and (c) are met -
(a) ECT at engine start - IAT at engine start -15 to 7°C (5 to 44.6°F)
(b) ECT at engine start -10 to 56°C (14 to 132.8°F)
(c) IAT at engine start -10 to 56°C (14 to 132.8°F)
2. All of the following conditions (d), (e) and (f) are met -
(d) ECT at engine start - IAT at engine start Higher than 7°C (44.6°F)
(e) ECT at engine start 56°C (133°F) or lower
(f) IAT at engine start -10°C (14°F) or higher
Accumulated time that vehicle speed is 80 mph (128 km/h) or more Less than 20 seconds