Sensor Operating Specifications

Sensor operating range information is supplied so that it can be determined if a sensor is out of calibration. A sensor that is out of calibration may not set a trouble code; however, it will cause driveability problems.

NOTE: All voltage tests should be performed with a Digital Volt Ohmmeter (DVOM) with a minimum 10-megohm input impedance, unless specifically stated different in testing procedures.

NOTE: Excel tables refer to ECM connector A and B. Connector A is the larger of the 2 connectors. Connector B is the smaller of the 2 connectors.

AIRFLOW SENSOR VOLTAGE TEST (SONATA) ⁽¹⁾

Between Terminals

Voltage

4 & 5

2.7-3.2

⁽¹⁾	Measure voltage with engine idling at operating temperature. See Fig 1 .

Fig 1: Airflow Sensor Connector (Sonata)

Courtesy of HYUNDAI MOTOR CO.

COOLANT TEMPERATURE SENSOR VOLTAGE TEST (EXCEL) ⁽¹⁾

Temperature °F (°C)

Voltage

32 (0)

3.4-3.6

68 (20)

2.4-2.7

104 (40)

1.5-1.8

176 (80)

.5-.7

⁽¹⁾	Measure between ECM connector B, terminal No. 9 and ground.

COOLANT TEMPERATURE SENSOR RESISTANCE TEST (SONATA) ⁽¹⁾

Temperature °F (°C)

Resistance Ohms

32 (0)

5900

68 (20)

2500

104 (40)

1100

176 (80)

300

⁽¹⁾	Measure resistance between sensor terminals.

INTAKE AIR TEMPERATURE SENSOR RESISTANCE TEST (SONATA) ⁽¹⁾

Temperature °F (°C)

Resistance Ohms

32 (0)

6000

68 (20)

2700

176 (80)

400

⁽¹⁾	Measure resistance between terminals No. 2 and 4. See Fig 1 .

THROTTLE POSITION SENSOR VOLTAGE TEST (EXCEL) ⁽¹⁾

Throttle Position

Voltage

Closed

.4-.7

WOT

4.5-5.5

⁽¹⁾	Measure between ECM connector B, terminal No. 9 and ground.

THROTTLE POSITION SENSOR RESISTANCE TEST (SONATA) ⁽¹⁾

Throttle Position

Resistance Ohms

Closed

500

WOT

3500-6500

⁽¹⁾	Measure between terminals No. 1 and 2. See Fig 2 .

Fig 2: Throttle Position Sensor Connector (Sonata)

Courtesy of HYUNDAI MOTOR CO.

CRANK ANGLE SENSOR TEST (SONATA) ⁽¹⁾

Application

Voltage

Crank Angle Sensor ⁽²⁾

1.8-2.5

TDC Signal ⁽³⁾

.2-1.2

⁽¹⁾	Measure while cranking engine. See Fig 3 .

⁽²⁾	Measure between terminals No. 1 and 2.

⁽³⁾	Measure between terminals No. 1 and 4.

Fig 3: Crank Angle Sensor Connector (Sonata)

Courtesy of HYUNDAI MOTOR CO.

OXYGEN SENSOR VOLTAGE TEST ⁽¹⁾

Condition

Volt

Lean

Rich

⁽¹⁾	Measure voltage between sensor terminals.