Engine Controls - Sensor Operating Range Charts: Introduction

Sensor operating range information can help determine if a sensor is out of calibration. An out-of-calibration sensor may not set a diagnostic trouble code, but it may cause driveability problems. For sensors not listed in this article, see appropriate SELF-DIAGNOSTICS article.

NOTE: Unless stated otherwise in test procedure, perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance. For connector terminal identification, see CONNECTOR IDENTIFICATION in appropriate SELF-DIAGNOSTICS article.

NOTE: Diamante with traction control has accelerator pedal position sensor in addition to Throttle Position (TP) sensor. Measure accelerator pedal position sensor total and variable resistance between specified accelerator pedal position sensor terminals. See Fig 1 . See ACCELERATOR PEDAL POSITION SENSOR RESISTANCE TEST (DIAMANTE WITH TRACTION CONTROL) table.

ACCELERATOR PEDAL POSITION SENSOR RESISTANCE TEST (DIAMANTE WITH TRACTION CONTROL)

Terminals No.

Ohms

1 & 4

3500-6500

1 & 2

⁽¹⁾

⁽¹⁾	As throttle is opened from closed to wide open throttle, resistance should smoothly change in proportion to opening angle.

Fig 1: Identifying Accelerator Pedal Position Sensor Terminals (Diamante With Traction Control)

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

BAROMETRIC PRESSURE SPECIFICATIONS

Altitude - Ft. (m)

⁽¹⁾ kPa

0 (0)

101

1969 (600)

3937 (1200)

5906 (1800)

⁽¹⁾	Use scan tool set in metric mode. With key on and engine off, read BARO sensor value.

ENGINE COOLANT TEMPERATURE SENSOR RESISTANCE ⁽¹⁾

Temperature - °F (°C)

Ohms

32 (0)

5100-6500

68 (20)

2100-2700

104 (40)

900-1300

176 (80)

260-360

⁽¹⁾	Check resistance across ECT sensor terminals.

INTAKE AIR TEMPERATURE SENSOR RESISTANCE ⁽¹⁾

Temperature - °F (°C)

Ohms

32 (0)

5300-6700

68 (20)

2300-3000

104 (40)

1000-1500

176 (80)

300-420

⁽¹⁾	IAT sensor is incorporated in Volume Airflow (VAF) sensor assembly. Check resistance between VAF sensor terminals No. 5 and 6. See Fig 2 or Fig 3 .

Fig 2: Identifying IAT Sensor Terminals (Diamante)

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 3: Identifying IAT Sensor Terminals (Except Diamante)

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

NOTE: On Diamante equipped with traction control, an accelerator pedal position sensor is used in addition to Throttle Position (TP) sensor.

NOTE: Measure TP sensor total and variable resistance between specified TP sensor terminals. See Fig 4 , Fig 5 or Fig 6 . See TP SENSOR TEST TERMINAL IDENTIFICATION table. For total resistance values, see TP SENSOR TOTAL RESISTANCE @ 68°F (20°C) table. Slowly open throttle valve from closed to wide open throttle. Variable resistance should change smoothly in proportion to throttle valve opening angle.

TP SENSOR TEST TERMINAL IDENTIFICATION

Application

Terminals No.

Total Resistance

Lancer

2 & 3

Montero

2 & 4

All Other Models

1 & 4

Variable Resistance ⁽¹⁾

Diamante

3 & 4

Lancer, Lancer Evolution VIII & Outlander

1 & 2

All Other Models ⁽¹⁾

1 & 3

⁽¹⁾	The manufacturer did not specify terminals to measure variable resistance for Montero.

TP SENSOR TOTAL RESISTANCE @ 68°F (20°C)

Application	Ohms
Lancer & Montero	2,000-4,000
All Other Models	3,500-6,500

Fig 4: Throttle Position Sensor Terminals (All Models Except Lancer & Diamante)

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 5: Throttle Position Sensor Terminals (Lancer)

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 6: Throttle Position Sensor Terminals (Montero)

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.