System Specifications

ECT/IAT Sensor Temperature/Voltage Chart:

Voltage values were calculated for Reference Voltage (VREF) = 5.0 volts. These values may vary 15 percent due to sensor and VREF variations.

Engine coolant temperature must be greater than 10°C (50°F) to pass the KOEO Self-Test and greater than 82°C (180°F) to pass the KOER Self-Test. To accomplish this, the engine should be at normal operating temperature.

Ambient temperature should be above 10°C (50°F) to receive acceptable input from the IAT sensor.