ENGINE CONTROLS - Sensor Operating Range Charts: Introduction

Sensor operating range information can help determine if a sensor is out of calibration. An out-of-calibration sensor may not set a trouble code, but it may cause driveability problems.

NOTE: Unless stated otherwise in test procedure, perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance.

NOTE: Crankshaft Position (CKP) sensor and Camshaft Position (CMP) sensor resistance information is not available from manufacturer.

ENGINE COOLANT TEMPERATURE (ECT) SENSOR RESISTANCE

Sensor Temperature - °F (°C)

⁽¹⁾ Resistance - Ohms

-6 (-20)

14,600-17,800

68 (20)

2200-2700

176 (80)

290-354

⁽¹⁾	Measure resistance between sensor terminals.

INTAKE AIR TEMPERATURE (IAT) SENSOR RESISTANCE

Sensor Temperature - °F (°C)

⁽¹⁾ Resistance - Ohms

-6 (-20)

14,600-17,800

68 (20)

2200-2700

176 (80)

290-354

⁽¹⁾	Measure resistance between sensor terminals.

MASS AIRFLOW (MAF) SENSOR VOLTAGE

Condition

⁽¹⁾⁽²⁾ Volts

At Idle

.8-1.2

Revving Up Engine

3.5-4.0

⁽¹⁾	On Sephia, measure between MAF terminal No. 4 (Red/White wire) and ground. On. Sportage, measure between MAF sensor terminal No. 4 (Red/Green wire) and ground.

⁽²⁾	At normal operating temperature.

OXYGEN SENSOR HEATER RESISTANCE

Application

Between Terminals No.

⁽¹⁾ Ohms

Sephia

1& 3 ⁽²⁾

Sportage

1& 3 ⁽³⁾

⁽¹⁾	Measured at 68°F (20°C).

⁽²⁾	On front HO2S measure resistance between Pink wire and Green/Black wire. On rear HO2S measure resistance between Pink wire and Green/Red wire.

⁽³⁾	On front HO2S measure resistance between Light Green/Red wire and Red/Green wire. On rear HO2S measure resistance between Green/Blue wire and Black/Red wire.

OXYGEN SENSOR VOLTAGE (SEPHIA)

Condition

⁽¹⁾ Volts

Key On, Engine Off

Less Than .5

Idle

Front HO2S

0-1

Rear HO2S

.6-.8

⁽¹⁾	Measure voltage between ground and front HO2S connector terminal No. 4 (Green/Brown wire or rear HO2S connector terminal No.4 (Green/White wire), with engine at normal operating temperature.

OXYGEN SENSOR VOLTAGE (SPORTAGE)

Condition

⁽¹⁾ Volts

Key On, Engine Off

Less Than .45

Idle

Front HO2S

.1-.9

Rear HO2S

.6-.7

⁽¹⁾	Measure voltage between ground and front HO2S connector terminal No. 4 (Yellow/White wire) or rear HO2S connector terminal No. 4 (Blue wire) with engine at normal operating temperature.

THROTTLE POSITION SENSOR (TPS) RESISTANCE SPECIFICATIONS

Application

Resistance - k/ohms Throttle Closed

Resistance - k/ohms Throttle Wide Open

Sephia ⁽¹⁾

1.6-2.4

4.1-4.3

Sportage ⁽²⁾

2.4

⁽¹⁾	Measure between TP sensor connector terminals No. 2 and 3 (Blue/White wire and Blue/Orange wire).

⁽²⁾	Measure between TP sensor connector terminals No. 2 and 3 (Yellow/Green wire and Yellow/Black wire).

THROTTLE POSITION SENSOR (TPS) VOLTAGE SPECIFICATIONS (SPORTAGE) ⁽¹⁾

Condition

Check Between Terminals No. ⁽²⁾

Volts

Throttle Fully Closed

1 & 3

.4-.6

Throttle Fully Open

1 & 3

4.0-4.2

⁽¹⁾	No TP sensor voltage test specifications available from manufacturer for Sephia.

⁽²⁾	On Sportage, measure voltage between TP sensor connector terminals No. 2 and 3 (Yellow/Green wire and Yellow/Black wire).