Mitsubishi Montero (1998+). Manual - part 81

Fig. 32:  Identifying SRS Harness Connectors

Courtesy of Mitsubishi Motor Sales of America

         CLOSED THROTTLE POSITION SWITCH TEST & THROTTLE POSITION

         SENSOR TEST

         Closed Throttle Position Switch

         1) Disconnect throttle position sensor connector. Continuity

should be present between terminals No. 1 and 2 with accelerator pedal

released. See Fig. 25. Continuity should not be present with

accelerator pedal pressed.

         2) If continuity is not present with accelerator released,

loosen throttle position sensor mounting screw. Turn throttle position

sensor completely clockwise. Recheck continuity. Replace throttle

position sensor if closed throttle position switch does not test as

specified.

         Throttle Position Sensor

         1) Disconnect sensor connector. Resistance between terminals

No. 1 and 4 should be 3500-6500 ohms. Use an analog ohmmeter to

measure resistance between terminals No. 1 and 3. See  Fig. 25.

         2) Slowly open throttle valve to wide open throttle.

Resistance should change smoothly as throttle is opened. Replace

throttle position sensor if it does not test as specified.

         CRUISE CONTROL INDICATOR TEST

         With combination meter (instrument cluster) removed, check

for continuity between terminals No. 4 and 5. See  Fig. 33. If there is

no continuity, replace cruise control indicator bulb.

Fig. 33:  Identifying Combination Meter Connector

Courtesy of Mitsubishi Motor Sales of America

         CRUISE CONTROL SWITCH TESTS

         CANCEL, SET & RESUME Switches

         1) Remove lower steering column cover. Disconnect 2-pin

switch connector. Operate and test switch. When CANCEL switch is

operated between terminals No. 1 and 2, zero ohms resistance should be

indicated.

         2) When RESUME switch is operated, 820 ohms resistance should

be present between terminals No. 1 and 2. When SET switch is operated,

2700 ohms resistance should be present between terminals No. 1 and 2.

Replace cruise control switch if it does not test as specified.

         Main Switch

         1) In each switch position, continuity should be present

between terminals No. 2 and 7 for switch illumination. See  Fig. 8.

When switch is moved to Neutral position, continuity should be present

between terminals No. 1 and 4.

         2) When switch is moved to ON position, continuity should be

present between terminals No. 4 and 5. Connect battery voltage to

terminal No. 5 and ground terminal No. 4.

         3) Battery voltage should be present on terminal No. 1 when

main switch is moved to ON position. Replace main switch if it does

not test as specified.

         PARK/NEUTRAL SWITCH TEST

         Disconnect switch connector. Shift transmission into Neutral

position. Continuity should be present between terminals No. 5

(Black/Blue wire) and No. 6 (Blue/Black wire). See  Fig. 7. If

continuity is not present, adjust park/neutral switch. If switch is

adjusted properly, replace switch.

         VACUUM PUMP TEST

         1) Disconnect vacuum pump connector A-105. Resistance should

be 50-60 ohms between terminals No. 1 and 2 and terminals No. 1 and 3.

See Fig. 6. Ensure solenoid valve makes operating noise when battery

voltage is applied between terminals No. 1 and 2 and terminals No. 1

and 3.

         2) If solenoid valve does not operate, replace vacuum pump

assembly. Apply battery voltage and ground between terminals No. 1 and

4. Motor should operate. Replace vacuum pump if motor does not

operate.

         VEHICLE SPEED SENSOR TEST

         Remove speed sensor from transmission. Connect speed sensor,

resistor (3000-10,000 ohms) and battery. See  Fig. 34. Using a

voltmeter, ensure voltage pulses on and off 4 times per revolution of

speedometer shaft. Replace sensor if voltage is not as specified.

Fig. 34:  Testing Vehicle Speed Sensor

Courtesy of Mitsubishi Motor Sales of America

         SELF-DIAGNOSTIC SYSTEM

         * PLEASE READ THIS FIRST *

NOTE:    Self-diagnostics should be performed when cruise control

         cancels without driver using normal cancel modes.

         RETRIEVING CODES

         1) Data Link Connector (DLC) is located to left of steering

column. Use analog voltmeter or scan tool for code retrieval. Follow

scan tool manufacturer’s instructions.

         2) Using an analog voltmeter, connect leads between cruise

control terminal and ground terminal of DLC. See  Fig. 35. Count number

of deflections and pauses of voltmeter needle to determine trouble

code. Digit count is about 0.5 second per pulse and pause between

digits is about 2 seconds. Once trouble codes have been displayed, see

DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION  table.

DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION TABLE

Code                                         Diagnostic Item

11  ..............................  Vacuum Pump Drive System

12  ...........................  Vehicle Speed Sensor Signal

14  .......................  Vacuum Pump Power Supply System

15  .................................  Cruise Control Switch

16  ....................................  Cruise Control ECU

17  .......................  Throttle Position Sensor System

Fig. 35:  Identifying Data Link Connector Terminals

Courtesy of Mitsubishi Motor Sales of America

         CLEARING CODES