2004 MITSUBISHI ENDEAVOR diagnosis

See Fig. 12
. Start the engine and allow it to idle. Measure the voltage between
terminal No. 10 of connector B-18 and ground. See Fig. 12
. If the voltage
when the radiator fan is not operating is more than 0.3V, go to next step. If the
voltage when the radiator fan is not operating is less than 0.3V, retest.
4. Check fan control module connector A-23 and PCM connector B-18 for loose,
corroded, or damaged terminals, or terminals pushed back in the connector.
See Fig. 7
and Fig. 11
. If connectors are okay, go to next step. If connectors
are damaged, repair or replace as necessary and retest.
5. Check the harness wire between terminal No. 10 of PCM connector B-18
(Green) and terminal No. 2 of fan control module connector A-23. See Fig. 7

and Fig. 11
. If wiring is damaged repair or replace as necessary and retest. If
wiring is okay, go to next step.
6. Disconnect PCM connector B-18 (Green). See Fig. 11
. Pull out pin No. 10 and
connect it to a body ground. Reconnect PCM connector with pin No. 10 still
removed. Turn the ignition switch to ON position. If the radiator fan motor and
condenser fan motor fan motor stop operating, replace the PCM and retest. If
the radiator fan motor and condenser fan motor do not stop operating, replace
the fan control module and retest.
TEST C: RADIATOR FAN DOES NOT OPERATE Technical Description The cause could be a malfunction of the radiator fan motor or an open circuit
between the fan control module and the radiator fan. Troubleshooting Hints
Malfunction of radiator fan motor.
Diagnosis If radiator fan does not operate, replace the radiator fan.
NOTE: Check terminal No. 7 of intermediate connector A-13,
repair it and then check wiring. See Fig. 9
.

2004 Mitsubishi Endeavor Limited
2004 ENGINE COOLING Electric Cooling Fans - Endeavor

TEST D: CONDENSER FAN DOES NOT OPERATETechnical Description The cause could be a malfunction of the condenser fan motor or an open circuit
between the fan control module and the radiator fan. Troubleshooting Hints
Malfunction of condenser fan motor. Malfunction of fan control module.
Diagnosis 1. Check the condenser fan motor. See CONDENSER FAN MOTOR
under
COMPONENT TESTS. If condenser fan motor is okay, go to next step. If
radiator fan motor is not okay, replace radiator fan motor and retest.
2. Check the fan control module. See FAN CONTROL MODULE
under
COMPONENT TESTS. If fan control module is okay, retest. If fan control
module is not okay, replace radiator fan motor and retest.
REMOVAL & INSTALLATION RADIATOR FAN Removal & Installation 1. Drain engine coolant.
2. Remove air cleaner.
3. Remove radiator grille.
4. Remove rubber hose. See Fig. 13
.
5. Remove radiator upper hose.
6. Disconnect fan motor connector.
7. Remove shroud assembly.
8. Remove radiator fan.
9. Remove radiator fan motor (integrated with fan control module).
10. Remove condenser fan.

2004 Mitsubishi Endeavor Limited
2004 ENGINE COOLING Electric Cooling Fans - Endeavor

Fig. 3: Identifying Special Tools (2 Of 2)

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
AUTO-CRUISE CONTROL SYSTEM DIAGNOSIS INTRODUCTION TO AUTO-CRUISE CONTROL SYSTEM DIAGNOSIS The auto-cruise control system allows driving without stepping on the accelerator
pedal by setting a random speed between 40 km/h (25 mph) and 170 km/h (106
mph). Problems in this system can be investigated by the following methods. Auto-cruise control system diagnostic trouble codes The auto-cruise control system consists of the powertrain control module (PCM),
control switches and sensors. The control switches and sensors monitor the state of
the vehicle. The PCM controls the throttle valve opening angle in the throttle body
in accordance with the in
put si
gnals from the switches and sensors. If the PCM

2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Auto, Cruise Control System - Endeavor

2. Turn the ignition switch to the "ON" position.
3. Select "CAN bus diagnosis" from the start-up screen.
4. When the vehicle information is displayed, confirm that it matches the vehicle
which is diagnosed CAN bus line.
If they matches, go to step 8. If not, go to step 5.
5. Select "view vehicle information" button.
6. Input the vehicle information and press "OK".
7. When the vehicle information is displayed, confirm again that it matches the
vehicle which is diagnosed CAN bus line. If they matches, go to step 8. If not, go to Step 5 .
8. Press the "OK" button.
9. When the options are displayed, choose the options (mark the check) and then
select "OK".
DIAGNOSTIC TROUBLE CODE CHART Check according to the inspection chart that is appropriate for the diagnostic trouble
code.
Fig. 8: Identifying Diagnostic Trouble Code Chart

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Auto, Cruise Control System - Endeavor

CIRCUIT OPERATION This circuit judges the signals of each switch ("COAST/SET", "ACC/RES" and
"CANCEL") of the auto-cruise control switch. The PCM detects the state of the
auto-cruise control switch by sensing the voltages shown below.
When all switches are OFF: 4.7 - 5.3 volts When the "CRUISE" (MAIN) switch is "ON": 0 - 0.3 volts When the "COAST/SET" switch is ON: 2.1 - 2.7 volts When the "ACC/RES" switch is ON: 3.3 - 4.0 volts When the "CANCEL" switch is ON: 0.8 - 1.5 volts
DTC SET CONDITIONS Check condition
The CRUISE indicator light illuminates.
Judgement Criteria The "COAST/SET" or "ACC/RES" switch remains on for 60 seconds.
TROUBLESHOOTING HINTS (The most likely causes for this case:)
Malfunction of the auto-cruise control switch. Malfunction of the clock spring. Damaged harness or connector. Malfunction of the PCM.
DIAGNOSIS Required Special Tools:
MB991223: Harness Set MB991923: Power Plant ECU Check Harness MB991958: Scan Tool (MUT-III sub assembly)
MB991824: V.C.I.

2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Auto, Cruise Control System - Endeavor

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
2. Turn the ignition switch to the "ON" position.
3. Set scan tool MB991958 to read the diagnostic trouble codes.
4. Turn the ignition switch to the "LOCK" (OFF) position.
5. Disconnect scan tool MB991958.
Q: Is DTC 15 set?
YES : Return to Step 1 .
NO : The procedure is complete.
DTC 21: Cancel Latch Signal System DTC SET CONDITIONS The PCM communicates cancellation retention information between the two
microprocessors. This DTC is set when cancellation retention information contains
inconsistency. TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:) Malfunction of the PCM. DIAGNOSIS Replace the PCM. [Refer to POWERTRAIN CONTROL MODULE (PCM)
].
Check that diagnostic trouble code 21 is not set.
DTC 22: Stoplight Switch System
2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Auto, Cruise Control System - Endeavor

Fig. 45: Identifying Connectors C
-03 C
-04
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
CIRCUIT OPERATION
Battery positive voltage is supplied to the stoplight switch (terminal 2 and 3). When the brake pedal is depressed, battery positive voltage is applied to the
PCM (terminal 9 and 33).
DTC SET CONDITIONS
CHECK CONDITION
The "CRUISE" indicator light illuminates.
Judgement Criteria Short in stop light switch circuit. Open circuit in the brake switch circuit (between PCM terminal 33 and
ground).
TROUBLESHOOTING HINTS (The most likely causes for this case:)
Malfunction of the stoplight switch. Damaged harness or connector. Malfunction of the PCM.
DIAGNOSIS REQUIRED SPECIAL TOOLS:
MB991223: Harness Set MB991923: Power Plant ECU Check Harness MB991958: Scan Tool (MUT-III sub assembly)
MB991824: V.C.I. MB991827: USB Cable MB991910: Main Harness A

2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Auto, Cruise Control System - Endeavor

2. Turn the ignition switch to the "ON" position.
3. Set scan tool MB991958 to read the diagnostic trouble codes.
4. Turn the ignition switch to the "LOCK" (OFF) position.
5. Disconnect scan tool MB991958.
Q: Is DTC 22 set?
YES : Replace to Step 1 .
NO : The procedure is complete.
DTC 23: Powertrain Control module (PCM) and Its Related Components DTC SET CONDITIONS This DTC is set when there is a failure in the PCM and its related components. TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
Malfunction of the MFI system. Malfunction of the A/T system. Malfunction of the PCM.
DIAGNOSIS REQUIRED SPECIAL TOOL:
MB991958: Scan Tool (MUT-III sub assembly)
MB991824: V.C.I. MB991827: USB Cable MB991910: Main Harness A
STEP 1. Using scan tool MB991958, read the diagnostic trouble code.
CAUTION: To prevent damage to scan tool MB991958,
always turn the ignition switch to the
"LOCK" (OFF) position before connecting or
disconnecting scan tool MB991958.

2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Auto, Cruise Control System - Endeavor