Sensor Range Charts

COOLANT TEMP SENSOR RESISTANCE (AMIGO & PICKUP 2.3L)

Condition

⁽¹⁾ Ohms

Cold Engine

Warm Engine

800

⁽¹⁾	Measure resistance across disconnected sensor terminals.

COOLANT TEMP SENSOR RESISTANCE (AMIGO, PICKUP & RODEO 2.6L)

Temperature °F (°C)

⁽¹⁾ Ohms

14 (-10)

7000-12,000

50 (10)

3000-5000

68 (20)

2000-3000

122 (50)

700-1000

176 (80)

200-400

⁽¹⁾	Measure resistance across disconnected sensor terminals.

COOLANT TEMPERATURE SENSOR RESISTANCE (RODEO 3.2L, STYLUS & TROOPER)

Temperature °F (°C)

⁽¹⁾ Ohms

0 (-18)

25,000

20 (-7)

13,500

40 (4)

7500

70 (21)

3400

100 (38)

1800

160 (71)

450

212 (100)

185

⁽¹⁾	Measure resistance across disconnected sensor terminals.

COOLANT TEMPERATURE SENSOR RESISTANCE (PICKUP 3.1L)

Temperature °F (°C)

⁽¹⁾ Ohms

5 (-15)

21,450

23 (-5)

12,300

41 (5)

7280

68 (20)

3520

104 (40)

1459

158 (70)

467

212 (100)

185

⁽¹⁾	Measure resistance across disconnected sensor terminals.

EGR TEMPERATURE SENSOR RESISTANCE (STYLUS - CA)

Temperature °F (°C)

⁽¹⁾ Ohms

32 (0)

28,000

104 (40)

5800

212 (100)

1000

⁽¹⁾	Measure resistance across disconnected sensor terminals.

MAP SENSOR VOLTAGE (STYLUS)

Altitude Feet

⁽¹⁾ Volts

Below 1000

3.8-5.5

1000-2000

3.6-5.3

2000-3000

3.5-5.1

3000-4000

3.3-5.0

4000-5000

3.2-4.8

5000-6000

3.0-4.6

6000-7000

2.9-4.5

7000-8000

2.8-4.3

8000-9000

2.6-4.2

⁽¹⁾	Measure voltage at Gray/Red wire terminal.

MAP SENSOR VOLTAGE (AMIGO, PICKUP & RODEO 2.6L)

Condition

⁽¹⁾ Volts

Vacuum Hose Disconnected

Greater than 2.5

Vacuum Hose Connected

Less than 2.5

⁽¹⁾	Measure voltage across terminals No. 1 and 2.

MAP SENSOR VOLTAGE (PICKUP 3.1L)

Throttle Position

⁽¹⁾ Volts

Closed

1-1.5

Wide Open

4.5-4.8

⁽¹⁾	Measure voltage at Pink wire and Light Green wire terminals with ignition on.

MAP SENSOR VOLTAGE (RODEO 3.2L & TROOPER)

Throttle Position

⁽¹⁾ Volts

Closed

.45-.85

Wide Open

3.8-4.5

⁽¹⁾	Measure voltage at Gray wire and Gray/Red wire terminals with ignition on.

MAT SENSOR RESISTANCE (RODEO 3.2L, STYLUS & TROOPER)

Temperature °F (°C)

⁽¹⁾ Ohms

0 (-18)

25,000

20 (-7)

13,500

7500

70 (21)

3400

100 (38)

1800

160 (71)

450

212 (100)

185

⁽¹⁾	Measure resistance across disconnected sensor terminals.

OXYGEN SENSOR VOLTAGE (Test at normal operating temperature)

Condition	Volts
Lean	.1
Rich	1.0

OXYGEN SENSOR HEATING ELEMENT RESISTANCE ⁽¹⁾

Application

⁽²⁾ Ohms

Rodeo 3.2L, Stylus & Trooper

3.5-14.3

⁽¹⁾	Resistance will vary with temperature change.

⁽²⁾	On Stylus, measure resistance between Black wire and Pink/Blue wire terminals. On Rodeo 3.2L and Trooper, measure resistance between Black wire and White/Red wire terminals.

THROTTLE POSITION SENSOR VOLTAGE ⁽¹⁾

Position

⁽²⁾ Volts

Closed Throttle

Open Throttle

5.0

⁽¹⁾	For terminal locations, see WIRING DIAGRAMS article.

⁽²⁾	Voltage should increase smoothly from closed to wide open throttle.

NOTE: On Rodeo 3.2L and Trooper, to test vehicle speed sensor, see ENGINE SENSORS & SWITCHES in SYSTEM & COMPONENT TESTING article.

VEHICLE SPEED SENSOR CONTINUITY ⁽¹⁾

Application

⁽²⁾ Continuity

All Models

4 Changes Per Revolution

⁽¹⁾	Measure continuity at back of speedometer. See WIRING DIAGRAMS article.

⁽²⁾	Turn speedometer cable to cycle reed switch on and off.

VEHICLE SPEED SENSOR VOLTAGE ⁽¹⁾

Application

⁽²⁾ Volts

All Models

Less than 10

⁽¹⁾	Measure voltage at back of speedometer. See L -WIRING DIAGRAMS article.

⁽²⁾	With ignition on, turn speedometer cable to cycle reed switch on and off.