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Sensor Operating Range Charts

ENGINE COOLANT TEMPERATURE (ECT) SENSOR RESISTANCE

Temp. °F (°C) Ohms
32 (0) 5880
68 (20) 2210-2690
104 (40) 1140
140 (60) 580
176 (80) 290-350
EGR TEMPERATURE (EGRT) SENSOR RESISTANCE (1)

Temp. °F (°C) Ohms
68 (20) 214,000-313,800
104 (40) 90,900-125,700
140 (60) 42,100-55,500
176 (80) 21,100-26,500
212 (100) 11,200-13,600
(1) Used on California models and Sidekick 1.6L.
INTAKE AIR TEMPERATURE (IAT) SENSOR RESISTANCE

Temp. °F (°C) Ohms
32 (0) 5400-6600
68 (20) 2280-2870
104 (40) 1060-1360
140 (60) 530-700
176 (80) 290-390
212 (100) 160-230
CAUTION: Damage to MAP sensor will occur if connections are made incorrectly.
MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR OUTPUT VOLTAGE (OFF-VEHICLE)

Altitude (Feet) Vacuum (In. Hg) (1)(2) Output Voltage
0 30 3.4-3.8
1000 29 3.3-3.7
2000 28 3.1-3.6
3000 27 3.0-3.5
4000 26 2.9-3.3
5000 25 2.8-3.2
6000 24 2.7-3.1
7000 23 2.6-3.0
8000 22 2.5-2.9
9000 21 2.4-2.8
10,000 20 2.3-2.7
(1) MAP sensor output voltage is tested with three 1.5-volt batteries connected in series (output 4.5-5.0 volts). Positive lead of batteries is connected to VIN terminal. Negative lead of batteries is connected to ground terminal. Check output voltage between VOUT terminal and ground.
(2) Voltage should reduce when up to 15 in. Hg of vacuum is applied to MAP sensor.
CAUTION: Damage to MAP sensor will occur if connections are made incorrectly.
MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR OUTPUT VOLTAGE (ON-VEHICLE)

Altitude (Feet) Vacuum (In. Hg) (1)(2) Output Voltage
0 30 3.6-4.4
1000 29 3.5-4.2
2000 28 3.4-4.1
3000 27 3.2-4.0
4000 26 3.1-3.8
5000 25 3.0-3.7
6000 24 2.9-3.6
7000 23 2.8-3.4
8000 22 2.7-3.3
9000 21 2.6-3.2
10,000 20 2.5-3.1
(1) MAP sensor output voltage is tested with coupler connected to ECM. ECM is located near upper left corner of instrument panel. Before testing MAP sensor output voltage, ensure ECM supply voltage is 4.75-5.25 volts at connector terminal A23 (Gray/Red wire) and terminal A24 (Gray/Yellow wire).
(2) Output voltage is checked at ECM connector terminal A22 (Gray/Green wire) and terminal A24 (Gray/Yellow wire). Start engine, if possible, and see if output voltage varies.
CAUTION: Blowing compressed air through mass airflow sensor will damage it.
POWER STEERING PRESSURE SIGNAL VSV (IF EQUIPPED)

Application Ohms
All Models (1) .33-.39
(1) Measure between power steering VSV terminals.
THROTTLE POSITION (TP) SENSOR RESISTANCE

Application Ohms
Between Terminals "C" & "D"
With .012" (.30 mm) Clearance At Stop Screw 0-500
With .020" (.50 mm) Clearance At Stop Screw Infinity
Between Terminals "A" & "D" 3500-6500
Between Terminals "B" & "D"
At Idle (1) 1300-2000
At Wide Open Throttle (2) 2000-6500
(1) To obtain idle position, apply 19 in. Hg vacuum to throttle opener.
(2) There should be more than 2000 ohms difference between idle and wide open throttle readings.
VEHICLE SPEED SENSOR (VSS) RESISTANCE

Application Ohms
All Models (1)
(1) With ohmmeter connected to vehicle speed sensor terminals, ohmmeter should alternate between zero and infinity 4 times per sensor shaft revolution.
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