Heated Oxygen Sensor (Ho2S)

Testing requires use of scan tool. See related DTC in appropriate TESTS W/CODES articles; For Accent see TESTS W/CODES article, for Elantra and Tiburon see TESTS W/CODES article, for Sonata 2.0L see TESTS W/CODES article, for Sonata 3.0L see TESTS W/CODES article.

HEATED OXYGEN SENSOR (HO2S) HEATER RESISTANCE

Temperature F° (C°)

⁽¹⁾ Ohms

71 (22)

1.6-2.5

⁽¹⁾	Check between sensor terminals with sensor disconnected.

IAT SENSOR TEMPERATURE-TO-VOLTAGE SPECIFICATIONS

Temperature °F (°C)

Voltage ⁽¹⁾

Except Sonata

32 (0)

3.3-3.7

68 (20)

2.4-2.8

104 (40)

1.6-2.0

176 (80)

0.5-0.9

Sonata

32 (0)

6.0

68 (20)

2.7

176 (80)

0.4

⁽¹⁾	Check voltage between IAT terminals No. 1 and 2 with sensor connected.

MANIFOLD DIFFERENTIAL PRESSURE (MDP) SENSOR VOLTAGES

Engine Speed	Voltage
Sonata
Idle	1.7-2.3

KNOCK SENSOR RESISTANCE SPECIFICATIONS

Temperature F° (C°)

⁽¹⁾ Ohms

68 (20)

⁽¹⁾	Check between sensor terminals with sensor disconnected.

MASS AIRFLOW SENSOR VOLTAGE

Engine Speed		Volts
Accent
Idle		0.7-1.1
3000		1.3-2.0

THROTTLE POSITION (TP) SENSOR SPECIFICATIONS

Throttle Position

Specification

Accent

Standard Value

⁽¹⁾ 700-3000 Ohms

Idle

⁽¹⁾ 2300-3400 Ohms

Closed

⁽²⁾ 0.10-0.88 Volts

Open (WOT)

⁽²⁾ 4.25-4.80 Volts

Elantra & Tiburon

Standard Value

⁽¹⁾ 700-3000 Ohms

Idle

⁽¹⁾ 2300-3400 Ohms

Closed

⁽²⁾ 0.25-0.80 Volts

Open (WOT)

⁽²⁾ 4.25-4.80 Volts

Sonata

Standard Value

⁽³⁾ 3500-6500 Ohms

Closed

⁽⁴⁾ 0.45-0.55 Volts

Open (WOT)

⁽⁴⁾ 4.50-5.50 Volts

⁽¹⁾	Check between TP sensor terminals No. 2 and 3. See Fig 1.

⁽²⁾	Check between ground and TP sensor terminal No. 1 with sensor connected. See Fig 1.

⁽³⁾	Check between TP sensor terminals No. 1 and 4. See Fig 2.

⁽⁴⁾	Check between ground and TP sensor terminal No. 3 with sensor connected. See Fig 2.

Fig 1: Identifying TP Sensor Connector Terminals (Accent, Elantra & Tiburon)

Courtesy of HYUNDAI MOTOR CO.

Fig 2: Identifying TP Sensor Connector Terminals (Sonata)

Courtesy of HYUNDAI MOTOR CO.