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.

NOTE: For circuit identification, see WIRING DIAGRAMS article. For connector views, see TERMINAL IDENTIFICATION in appropriate SELF-DIAGNOSTICS article, unless otherwise noted.

NOTE: Resistance values will vary depending on temperature. In some instances, temperature value is not given by manufacturer.

ENGINE COOLANT TEMPERATURE (ECT) SENSOR RESISTANCE

Sensor Temperature - °F (°C)

⁽¹⁾ Resistance - Ohms

Optima & Magentis (Canadian)

68 (20)

2.31-2.59

176 (80)

.31-.34

Rio

-6 (-20)

13.24-16.83

68 (20)

.65-4.24

176 (80)

.267-.429

Sephia, Spectra & Sportage

-6 (-20)

14.6-17.8

68 (20)

2.20-2.70

176 (80)

.290-.354

⁽¹⁾	Measure resistance between sensor terminals.

INTAKE AIR TEMPERATURE (IAT) SENSOR RESISTANCE

Sensor Temperature - °F (°C)

⁽¹⁾ Resistance - Ohms

Optima & Magentis (Canadian)

68 (20)

2.20-2.82

176 (80)

.290-.360

Rio

-6 (-20)

13.24-16.83

68 (20)

.65-4.25

176 (80)

.267-.429

Sephia, Spectra & Sportage

-6 (-20)

14.6-17.8

68 (20)

2.20-2.70

176 (80)

.290-.354

⁽¹⁾	Measure resistance between sensor terminals.

MASS AIRFLOW (MAF) SENSOR VOLTAGE

Condition

⁽¹⁾ Volts

Optima & Magentis (Canadian)

At Idle

1.4-1.6

At 2000 RPM

3.0-4.0

Rio

At Idle

.6-.8

Revving Up Engine

3.0-4.0

Sephia, Spectra & Sportage

At Idle

.8-1.2

Revving Up Engine

3.5-4.0

⁽¹⁾	At normal operating temperature.

OXYGEN SENSOR HEATER RESISTANCE

Application

Between Terminals No.

⁽¹⁾ Ohms

Optima & Magentis (Canadian)

2.4L

Front

3 & 4

11-14

Rear

3 & 4

7-9

2.5L

3 & 4

3-6

Rio

2 & 4

3-6

Sephia

1& 3

Sportage

1& 3

⁽¹⁾	Measured at 68°F (20°C).

OXYGEN SENSOR VOLTAGE (OPTIMA & MAGENTIS (CANADIAN) 2.4L)

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. 2 (Tan wire) or rear HO2S connector terminal No. 2 (Tan wire), with engine at normal operating temperature.

OXYGEN SENSOR VOLTAGE (OPTIMA & MAGENTIS (CANADIAN) 2.5L)

Condition

⁽¹⁾ Volts

Key On, Engine Off

Less Than .5

Idle

Front HO2S

0-1

Rear HO2S

.6-.9

⁽¹⁾	Measure voltage between ground and connector terminal No. 2 with engine at normal operating temperature. See SYSTEM & COMPONENT TESTING article.

OXYGEN SENSOR VOLTAGE (RIO)

Condition

⁽¹⁾ Volts

Key On, Engine Off

Less Than .5

Idle

Front HO2S

0-1

Rear HO2S

.6-.9

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

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 .5

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	Check between Terminals No.	Resistance - k/ohms Throttle Closed	Resistance - k/ohms Throttle Wide Open
Optima & Magentis (Canadian)
2.4L	1 & 2	3.5-6.5	4.1-4.3
2.5L	2 & 3	.71-1.38	2.2-3.4
Rio	2 & 3	1.6-2.4	4.1-4.3
Sephia	1 & 3	1.6-2.4	4.1-4.3
Sportage	2 & 3	2.4	1

THROTTLE POSITION SENSOR (TPS) VOLTAGE SPECIFICATIONS

Condition	Check Between Terminals No.	Volts
Optima & Magentis (Canadian)
2.4L
Throttle Fully Closed	1 & 3	.3-.9
Throttle Fully Open	1 & 3	4.0-4.8
2.5L
Throttle Fully Closed	1 & 2	.2-.8
Throttle Fully Open	1 & 2	4.0-4.8
Rio
Throttle Fully Closed	1 & 3	.2-.8
Throttle Fully Open	1 & 3	4.0-4.8
Sephia & Spectra
Throttle Fully Closed	1 & 3	.4-.6
Throttle Fully Open	1 & 3	4.0-4.2
Sportage
Throttle Fully Closed	2 & 3	.4-.6
Throttle Fully Open	2 & 3	4.0-4.2