Engine Controls - Sensor Operating Range Charts: Introduction

NOTE: For information on Santa Fe with 3.5L, refer to FUEL SYSTEM (3.5L) article.

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: See SYSTEM & COMPONENT TESTING article or appropriate SELF-DIAGNOSTICS article for sensor testing procedures. Unless stated otherwise in test procedure, perform all tests using a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance.

ECT SENSOR SPECIFICATIONS

Temperature °F (°C)

Ohms

⁽¹⁾ Output Voltage

14 (-10)

8160-10,740

⁽²⁾

32 (0)

5180-6600

4.05

68 (20)

2270-2730

3.44

104 (40)

1059-1281

2.72

140 (60)

538-650

⁽²⁾

176 (80)

298-322

1.25

194 (90)

219-243

⁽²⁾

⁽¹⁾	Backprobe ECT sensor connector or ECM connector during engine operation.

⁽²⁾	Value is not available from manufacturer.

HEATED OXYGEN SENSOR (HO2S) HEATER RESISTANCE

Temperature °F (°C)

⁽¹⁾⁽²⁾ Ohms

Accent, Santa Fe 2.4L, Sonata 2.4L & XG 350

All At 752 (400) ⁽³⁾

30 Or More

Santa Fe 2.7L & Sonata 2.7L

All At 74 (23)

4.0-5.2

All At 752 (400) ⁽³⁾

8.2-11.1

Santa Fe 3.5L

⁽⁴⁾

⁽¹⁾	Check between HO2S sensor terminals No. 3 and 4 with ignition off and sensor disconnected.

⁽²⁾	Accent HO2S heater specifications not available from manufacturer.

⁽³⁾	Before checking HO2S heater resistance, operate engine at idle until measured coolant temperature is 176-203°F (80-95°C).

⁽⁴⁾	For information on Santa Fe with 3.5L, refer to FUEL SYSTEM (3.5L) article.

IAT SENSOR TEMPERATURE-TO-VOLTAGE SPECIFICATIONS

Temperature °F (°C)		Volts
Accent
32 (0)		4.0-4.4
68 (20)		3.3-3.7
104 (40)		2.5-2.9
176 (80)		1.0-1.4
Santa Fe 2.7L
32 (0)		4.3
68 (20)		3.4

IAT SENSOR TEMPERATURE-TO-RESISTANCE SPECIFICATIONS

Temperature - °F (°C)

⁽¹⁾ Ohms

Accent, Elantra, Santa Fe 2.7L & Tiburon 2.0L

32 (0)

4.5-7.5

68 (20)

2.0-3.0

104 (40)

0.7-1.6

176 (80)

0.2-0.4

Sonata 2.7L & Tiburon 2.7L

-40 (-40)

3.9-6.1

-14 (-10)

0.7-1.2

68 (20)

0.2-0.3

176 (80)

.03-.04

⁽¹⁾	Resistance specifications are approximate to the nearest ohm.

KNOCK SENSOR SPECIFICATIONS

Temperature °F (°C)	Resistance - Ohms	Capacitance - pF
68 (20)	5,000,000	800-1600

MAP SENSOR VOLTAGE SPECIFICATIONS

Engine State		Volts
Key On, Engine Off		4.0-5.0
Idling
Accent		0.7-1.4
Elantra & Tiburon 2.0L		0.5-2.0
Sonata 2.4L		0.8-2.4

MASS AIRFLOW SENSOR OUTPUT VOLTAGE

Engine Speed		Volts
Santa Fe, Sonata 2.7L, Tiburon 2.7L & XG 350
Idle		0.5
2000 RPM		1.0

THROTTLE POSITION (TP) SENSOR SPECIFICATIONS

Throttle Position

Specification

Accent

Standard Value

⁽¹⁾ 700-3000 Ohms

Idle Position

⁽²⁾ 0.25-0.80 Volt

Open (WOT)

⁽²⁾ 4.0-4.8 Volts

Elantra & Tiburon 2.0L

Standard Value

⁽¹⁾ 700-3000 Ohms

Idle Position

⁽¹⁾ 2300-3400 Ohms

Idle Position

⁽²⁾ 0.10-0.88 Volt

Open (WOT)

⁽²⁾ 4.25-4.80 Volts

Santa Fe

Standard Value

2.4L

⁽¹⁾ 3500-6500 Ohms

2.7L

⁽¹⁾ 1600-2400 Ohms

Idle Position

⁽³⁾

Open (WOT)

⁽³⁾

Santa Fe 3.5L, Sonata, Tiburon 2.7L & XG 350

Standard Value

2.4L, 2.7L & 3.5L

⁽¹⁾ 3500-6500 Ohms

Idle Position

2.4L & 3.5L

⁽²⁾ 0.30-0.90 Volts

2.7L

⁽²⁾ 0.25-0.80 Volts

Open (WOT)

⁽²⁾ 4.25-4.70 Volts

⁽¹⁾	Measure resistance between TP sensor connector ground terminal and TP sensor connector reference voltage terminal.

⁽²⁾	Backprobe and measure voltage between TP sensor connector ground terminal and TP sensor connector signal terminal.

⁽³⁾	Refer to appropriate SELF-DIAGNOSTICS article.