control module MITSUBISHI ENDEAVOR 2004 Service Workshop Manual

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. Set scan tool MB991958 to data reading mode for auto-cruise control
system.
Item 03: Resume Switch.
When "ACC/RES" switch is at the "ON" position, the display on
scan tool MB991958 should be "ON". When "ACC/RES" switch is at the "OFF" position, the display
on scan tool MB991958 should be "OFF".
4. Turn the ignition switch to the "LOCK" (OFF) position.
5. Disconnect scan tool MB991958.
Q: Is the switch operating properly?
YES : Go to Step 17 .
NO : Go to Step 3.
STEP 3. Measure the power supply voltage at auto-cruise control switch
connector C-302 by backprobing.
1. Remove the air bag module (driver's side). (Refer to GROUP 52B, Air
Bag Modules and Clock Spring P.52B-567).
2. Connect the negative (-) battery cable.
3. Do not disconnect auto-cruise control switch connector C-302.

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

Fig. 22: Identifying Connectors: C
-302, C
-303, C
-306
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Are the connectors and terminals in good condition?
YES : Go to Step 6.
NO : Repair or replace the faulty connector and install the air bag module
(driver's side). (Refer to DRIVER
-SIDE AIR BAG MODULE &
CLOCKSPRING
). Then go to Step 18 .
STEP 6. Check the harness wire between PCM connector B-18 terminal
12 and auto-cruise control switch connector C-302 terminal 2 for damage.

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

Q: Is the harness wire in good condition?
YES : Go to Step 7.
NO : Repair the damaged harness wire, and install the air bag module
(driver's side). (Refer to DRIVER
-SIDE AIR BAG MODULE &
CLOCKSPRING
). Then go to Step 18 .
STEP 7. Check the clock spring.
Refer to DRIVER
-SIDE AIR BAG MODULE & CLOCKSPRING
.
Q: Is the clock spring in good condition?
YES : It can be assumed that this malfunction is intermittent. (Refer to
HOW TO COPE WITH INTERMITTENT MALFUNCTIONS ).
Install the air bag module (driver's side). (Refer to DRIVER
-SIDE AIR
BAG MODULE & CLOCKSPRING
). Then go to Step 18 .
NO : Replace the clock spring and install the air bag module (driver's
side). (Refer to DRIVER
-SIDE AIR BAG MODULE &
CLOCKSPRING
). Then go to Step 18 .
STEP 8. Check PCM connector B-18 for loose, corroded or damaged
terminals, or terminals pushed back in the connector.

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

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
Q: Are the connector and terminals in good condition?
YES : Go to Step 9.
NO : Repair or replace the faulty connector, (Refer to GROUP 00E,
Harness Connector Inspection P.00E-2), and install the air bag module
(driver's side). (Refer to DRIVER
-SIDE AIR BAG MODULE &
CLOCKSPRING
). Then go to Step 18 .
STEP 9. Check the harness for short circuit to ground between the PCM
connector B-18 terminal 12 and the auto-cruise control switch connector
C-302 terminal 2.
1. Disconnect PCM connector B-18 and measure at the harness connector
side.

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

YES : Install the air bag module (driver's side). (Refer to DRIVER
-SIDE
AIR BAG MODULE & CLOCKSPRING
). Then go to Step 17 .
NO : Repair or replace the harness wire, and install the air bag module
(driver's side). (Refer to DRIVER
-SIDE AIR BAG MODULE &
CLOCKSPRING
). Then go to Step 18 .
STEP 10. Measure the ground voltage at auto-cruise control switch
connector C-302 by backprobing.
1. Do not disconnect auto-cruise control switch connector C-302.

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

Fig. 35: Identifying Connectors C
-302, C
-303, C
-306
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Are the connectors and terminals in good condition?
YES : Go to Step 13.
NO : Repair or replace the faulty connector and install the air bag module
(driver's side). (Refer to DRIVER
-SIDE AIR BAG MODULE &
CLOCKSPRING
). Then go to Step 18 .
STEP 13. Check the harness wire between PCM connector B-19 terminal
28 and auto-cruise control switch connector C-302 terminal 3 for damage.

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

Fig. 37: Identifying Connectors C
-302, C
-303, C
-306
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Is the harness wire in good condition?
YES : Go to Step 14.
NO : Repair the damaged harness wire, and install the air bag module
(driver's side). (Refer to DRIVER
-SIDE AIR BAG MODULE &
CLOCKSPRING
). Then go to Step 18 .
STEP 14. Check the clock spring.
Refer to DRIVER
-SIDE AIR BAG MODULE & CLOCKSPRING
.
Q: Is the clock spring in good condition?
YES : It can be assumed that this malfunction is intermittent. (Refer to
HOW TO COPE WITH INTERMITTENT MALFUNCTIONS ).
Install the air bag module (driver's side). (Refer to DRIVER
-SIDE AIR
BAG MODULE & CLOCKSPRING
). Then go to Step 18 .
NO : Replace the clock spring and install the air bag module (driver's
side). (Refer to DRIVER
-SIDE AIR BAG MODULE &
CLOCKSPRING
). Then go to Step 18 .
STEP 15. Check PCM connector B-19 for loose, corroded or damaged
terminals, or terminals pushed back in the connector.

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