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SEF594K Component Description NHEC0069 The engine coolant temperature sensor is used to detect the SEF012P <Reference data> Engine coolant temperature °C (°F) Voltage* V Resistance k Ω −10 (14) 4.4 7.0 - 11.4 20 (68) 3.5 2.1 - 2.9 50 (122) 2.2 0.68 - 1.00 90 (194) 0.9 0.236 - 0.260 *: These data are reference values and are measured between ECM terminal 70 CAUTION: Do not use ECM ground terminals when measuring input/ On Board Diagnosis Logic NHEC0070 Malfunction is detected when an excessively high or low voltage FAIL-SAFE MODE NHEC0070S02 When this malfunction is detected, the ECM enters fail-safe mode Detected items Engine operating condition in fail-safe mode Engine coolant tem- perature sensor circuit Engine coolant temperature will be determined by ECM based on the time after turning ignition switch Condition Engine coolant temperature decided (CONSULT-II display) Just as ignition switch is turned ON or Start 40°C (104°F) More than approx. 4 minutes after ignition ON or 80°C (176°F) Except as shown above 40 - 80°C (104 - 176°F) (Depends on the time) GI MA EM LC FE AT AX SU BR ST RS BT HA SC EL IDX DTC P0115 ENGINE COOLANT TEMPERATURE SENSOR (ECTS) (CIRCUIT) Component Description EC-171 |