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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 appropriate wiring diagram under ENGINE PERFORMANCE in WIRING DIAGRAMS. 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 SENSOR RESISTANCE

Sensor Temperature - °F (°C) (1) Resistance - K/Ohms
Optima & Magentis (Canadian)
68 (20) 2.31-2.59
176 (80) 0.30-0.34
Rio
-4 (-20) 13.3-16.8
68 (20) 2.24-2.64
176 (80) 0.30-0.33
Sedona
68 (20) 2.4
176 (80) 0.30
Sorento
68 (20) 2.31-2.59
176 (80) 0.32
Spectra
-40 (-20) 14.6-17.8
68 (20) 2.20-2.70
176 (80) 0.29-0.35
(1) Measure resistance between sensor terminals.
INTAKE AIR TEMPERATURE SENSOR RESISTANCE

Sensor Temperature - °F (°C) (1) Resistance - K/Ohms
Optima & Magentis (Canadian)
68 (20) 2.20-2.82
176 (80) 0.30-0.36
Rio
-6 (-20) 13.3-16.9
68 (20) 2.27-2.64
176 (80) 0.27-0.43
Sedona
68 (20) 2.22-2.82
176 (80) 0.31-0.43
Sorento
68 (20) 2.23-2.87
176 (80) 0.31-0.43
Spectra
-6 (-20) 14.6-17.8
68 (20) 2.22-2.82
176 (80) 0.30-0.33
(1) Measure resistance between sensor terminals.
MASS AIRFLOW SENSOR VOLTAGE

Condition (1) Volts
Optima & Magentis (Canadian) (2.4L)
At Idle 1.2-1.6
Revving Up Engine 1.6-2.2
Optima & Magentis (Canadian) (2.7L)
At Idle 0.6-1.0
Revving Up Engine 1.0-1.6
Rio
At Idle 0.6-0.8
Revving Up Engine 3.0-4.0
Sedona & Sorento
At Idle 0.5
Revving Up Engine 1.0
Spectra
At Idle 0.8-1.2
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 3 & 4 3-6
Optima & Magentis (Canadian) 2.7L 3 & 4 4-5.5
Rio 2 & 4 3-7
Sedona 3 & 4 3-6
Sorento 3 & 4 11.0-14.0
Spectra 1& 3 2-4
(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 (Red wire) or rear HO2S connector terminal No. 2 (Tan wire), with engine at normal operating temperature.
OXYGEN SENSOR VOLTAGE (OPTIMA & MAGENTIS (CANADIAN) 2.7L)

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 right front HO2S connector terminal No. 2 (Red wire), left front HO2S connector terminal No. 2 (White wire), right rear HO2S connector terminal No. 2 (Red wire) and left rear HO2S connector terminal No. 2 (Red wire), with engine at normal operating temperature.
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. 3 (Yellow/ Blue wire) or rear HO2S connector terminal No. 3 (White wire), with engine at normal operating temperature.
OXYGEN SENSOR VOLTAGE (SEDONA)

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 right front HO2S connector terminal No. 2 (Yellow/Green wire), left front HO2S connector terminal No. 2 (Blue wire), right rear HO2S connector terminal No. 2 (White/Yellow wire) and left rear HO2S connector terminal No. 2 (Red wire), with engine at normal operating temperature.
OXYGEN SENSOR VOLTAGE (SORENTO)

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 right front HO2S connector terminal No. 2 (White wire), left front HO2S connector terminal No. 2 (Green wire), right rear HO2S connector terminal No. 2 (Yellow wire) and left rear HO2S connector terminal No. 2 (Blue wire), with engine at normal operating temperature.
OXYGEN SENSOR VOLTAGE (SPECTRA)

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.
THROTTLE POSITION SENSOR RESISTANCE SPECIFICATIONS

Application Check Between Terminals No. Resistance - k/ohms Throttle Closed
Optima & Magentis (Canadian)
2.4L 2 & 3 3.5-6.5
2.7L 2 & 3 1.6-2.4
Rio 1 & 2 1.6-2.4
Sedona 1 & 4 3.5-6.5
Sorento 1 & 4 3.5-6.5
Spectra 1 & 3 1.6-2.4
THROTTLE POSITION SENSOR VOLTAGE SPECIFICATIONS

Condition Check Between Terminals No. Volts
Optima & Magentis (Canadian)
2.4L
Throttle Fully Closed 1 & 3 0.3-0.9
Throttle Fully Open 1 & 3 4.0-4.6
2.7L
Throttle Fully Closed 1 & 2 0.2-0.8
Throttle Fully Open 1 & 2 4.0-4.4
Rio
Throttle Fully Closed 1 & 3 0.2-0.8
Throttle Fully Open 1 & 3 4.0-4.8
Sedona
Throttle Fully Closed 2 & 4 0.3-0.9
Throttle Fully Open 2 & 4 4.0-4.6
Sorento
Throttle Fully Closed 3 & 4 0.3-0.9
Throttle Fully Open 3 & 4 4.2-4.7
Spectra
Throttle Fully Closed 1 & 3 0.3-0.9
Throttle Fully Open 1 & 3 4.0-4.4
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