Sensor Operating Range Charts: Notes

NOTE: Unless stated otherwise in test procedure, perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance. For connector terminal identification, see TERMINAL IDENTIFICATION in the TESTS W/CODES article.

ENGINE COOLANT TEMPERATURE (ECT) SENSOR RESISTANCE ⁽¹⁾

Application & Temperature °F (°C)

Ohms

68 (20)

2100-2700

176 (80)

260-360

⁽¹⁾	Check resistance across ECT sensor terminals.

INTAKE AIR TEMPERATURE (IAT) SENSOR RESISTANCE ⁽¹⁾

Application & Temperature °F (°C)

Ohms

68 (20)

2300-3000

176 (80)

300-420

⁽¹⁾	Check resistance across IAT sensor terminals No. 5 and 6.