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
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