Tests DX: Engine Coolant Temperature (ECT) Sensor
PINPOINT TEST DX: ENGINE COOLANT TEMPERATURE (ECT) SENSOR
This pinpoint test is intended to diagnose the following:
^ engine coolant temperature ( ECT) sensor (12A648)
^ harness circuits: ECT and SIGRTN
^ powertrain control module ( PCM) (12A650)
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 must be at normal operating temperature.
Voltage values calculated for VREF = 5 volts. These values can vary by 15% due to sensor and VREF variations.
Reference:
Reference:
PCM Connector
Reference:
DX1 - DX3:
DX4 - DX5:
DX6:
DX7 - DX8:
DX9 - DX10:
DX11 - DX12:
DX13 - DX14:
DX15 - DX16:
DX17 - DX18:
