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Home >> Honda >> 2012 >> Insight Base >> Repair and Diagnosis >> Engine Performance >> System >> Advanced Diagnostics >> DTC P0128: Cooling System Malfunction >> Enable Conditions

Enable Conditions

Condition Minimum Maximum
Engine off time 6 hours -
Initial intake air temperature 20 °F (-7 °C) 123 °F (50 °C)
Initial engine coolant temperature (ECT 2) 20 °F (-7 °C) 123 °F (50 °C)
The difference between initial intake air temperature and current intake air temperature - 3 °F (2 °C)(1)
7 °F (4 °C)(2)
No active DTCs set (prevents monitor from running) P0101, P0102, P0103, P0107, P0108, P0111, P0112, P0113, P0116, P0117, P0118, P0122, P0123, P0125, P0134, P0135, P0171, P0172, P0201, P0202, P0203, P0204, P0222, P0223, P0300, P0301, P0302, P0303, P0304, P0335, P0339, P0351, P0352, P0400, P0401, P0404, P0443, P0496, P0497, P0506, P0507, P0522, P0523, P060A, P1109, P1116, P1157, P1172, P145C, P1659, P2101, P2118, P2122, P2123, P2127, P2128, P2135, P2138, P2176, P2183, P2184, P2185, P2195, P219A, P2227, P2228, P2229, P2238, P2252, P2413, P2610, P2648, P2649
(1) Intake air temperature decrease judgment when there is no driving record of 25 mph (40 km/h) in this drive cycle.
(2) Intake air temperature decrease judgment when there is a driving record of 25 mph (40 km/h) in this drive cycle.