control module MITSUBISHI ENDEAVOR 2004 Service Owners Manual

NO: Replace the radiator fan motor. Then go to Step 7.
STEP 7. Check the symptoms.
Q: Do the radiator fan and condenser fan operate correctly?
YES: The procedure is complete.
NO: Return to Step 1 .
INSPECTION PROCEDURE 5: 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 motor. TROUBLESHOOTING HINTS Malfunction of radiator fan motor DIAGNOSIS Replace the radiator fan motor. INSPECTION PROCEDURE 6: Condenser Fan does not Operate Radiator Fan and Condenser Fan Drive Circuit Refer to INSPECTION PROCEDURE 3: RADIATOR FAN AND CONDENSER FAN DO NOT OPERATE
.
CIRCUIT OPERATION
The fan control module is powered from fusible link number 2. The PCM judges the required revolution speed of radiator fan motor and
condenser fan motor using the input signals transmitted from A/C switch,
automatic compressor controller, vehicle speed sensor and engine coolant
temperature sensor. The PCM activates the fan control module to drive the
radiator fan motor and condenser fan motor.
TECHNICAL DESCRIPTION
2004 Mitsubishi Endeavor Limited 2004 ENGINE Engine Cooling - Endeavor

The cause could be a malfunction of the condenser fan motor or fan control module.TROUBLESHOOTING HINTS
Malfunction of condenser fan motor Malfunction of fan control module
DIAGNOSIS
STEP 1. Check the condenser fan motor.
Refer to CONDENSER AND CONDENSER FAN MOTOR
.
Q: Is the condenser fan motor in good condition?
YES: Go to Step 2.
NO: Replace the condenser fan motor, then go to Step 3 .
STEP 2. Check the fan control module.
Refer to FAN CONTROL MODULE CHECK
.
Q: Is the fan control module in good condition?
YES: Go to Step 3.
NO: Replace the radiator fan motor, then go to Step 3.
STEP 3. Check the symptoms.
Q: Does the condenser fan operate correctly?
YES: The procedure is complete.
NO: Return to Step 1 .
ON-VEHICLE SERVICE ENGINE COOLANT LEAK CHECK
WARNING:When pressure testing the cooling system, slowly
release cooling system pressure to avoid getting

2004 Mitsubishi Endeavor Limited 2004 ENGINE Engine Cooling - Endeavor

11. After repeatedly revving the engine up to 3,000 r/min several times, stop the
engine.
12. Remove the radiator cap after the engine has cooled, and pour in coolant up to
the brim. Reinstall the cap.
13. Add coolant to the radiator condenser tank assembly between the "FULL" and
"LOW" mark if necessary. ENGINE COOLANT CONCENTRATION TEST Refer to RECOMMENDED LUBRICANTS AND LUBRICANT CAPACITIES
.
FAN CONTROL MODULE CHECK 1. Remove the fan control module connector.
2. Turn the ignition switch to the "ON" position, and measure the voltage
between the harness-side connector terminals.
Standard value: Battery positive voltage
CAUTION: Do not overfill the radiator condenser tank
assembly.

2004 Mitsubishi Endeavor Limited 2004 ENGINE Engine Cooling - Endeavor

Fig. 43: Measuring Voltage Between Harness
-Side Connector
Terminals

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
3. Connect the fan control module connector, and disconnect the condenser fan
motor connector.
4. Ensure that the A/C switch is off, and start the engine and run it at idle.
5. Measure the voltage between the fan control module-side connector terminals.
Standard value: 1V or less
WARNING:Stay clear of the fan when the fan starts running.

2004 Mitsubishi Endeavor Limited 2004 ENGINE Engine Cooling - Endeavor

Fig. 44: Measuring Voltage Between Fan Control Module
-Side Connector
Terminals

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
6. Turn the A/C switch to the "ON" position.
7. Measure the voltage between the fan control module-side connector terminals
while the fan is running. The voltage should repeat the values 1) and 2) below.
Standard value:
1.8.2+/-2.6 V
2.Battery positive voltage+/-2.6 V
8. If the voltage does not repeatedly change as indicated, replace the radiator fan
motor.
FAN CONTROL RELAY CONTINUITY CHECK
2004 Mitsubishi Endeavor Limited 2004 ENGINE Engine Cooling - Endeavor

MB991958: Scan Tool (MUT-III Sub Assembly)
MB991824: V.C.I. MB991827: MUT-III USB Cable MB991910: MUT-III Main Harness A
1. Before checks set the vehicle in the following condition:
Engine coolant temperature: 80 - 95°C (176 - 203°F) Lights and all accessories: OFF Transaxle: P range
2. Remove all of the ignition coils and spark plugs.
3. Disconnect the crankshaft position sensor connector.
NOTE: Vehicles for Canada, the headlight, taillight, etc. remain
lit even when the lighting switch is in "OFF" position
but this is no problem for checks.
NOTE: Doing this will prevent the engine control module from
carrying out ignition and fuel injection.

2004 Mitsubishi Endeavor Limited
2004 ENGINE Engine - Endeavor

Fig. 36: Identifying Connector C
-301 C
-303

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Is the wiring harness between clock spring connector C-303 (terminals
4 and 5) and switch (RH) connector C-301 (terminals 1 and 2) in good
condition?
YES: Go to Step 11.
NO: Repair the wiring harness. The remote controlled radio switch should
work normally.
STEP 11. Measure the resistance at remote controlled radio switch (RH).
1. Remove the airbag module (Refer to AIR BAG RESTRAINT
SYSTEMS
).
2. Measure the resistance b
y operatin
g the remote controlled radio switch

2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Radio With Tape Player & Cd Player - Endeavor

STEP 1. Measure the resistance at remote controlled radio switch (RH).
1. Remove the airbag module (Refer to AIR BAG RESTRAINT
SYSTEMS
).
2. Measure the resistance by operating the remote controlled radio switch
(RH) in each position.
Fig. 39: Switch Position Table

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Radio With Tape Player & Cd Player - Endeavor

TECHNICAL DESCRIPTION (COMMENT
)
Refer to INSPECTION PROCEDURE 2
.
TROUBLESHOOTING HINTS Refer to INSPECTION PROCEDURE 2
.
DIAGNOSIS Required Special Tool:
MB991223: Harness set
STEP 1. Measure the resistance at remote controlled radio switch (LH).
1. Remove the airbag module (Refer to AIR BAG RESTRAINT
SYSTEMS
).
2. Measure the resistance by operating the remote controlled radio switch
(LH
) in each
position.

2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Radio With Tape Player & Cd Player - Endeavor

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
REMOTE CONTROLLED RADIO SWITCH REMOVAL AND INSTALLATION Fig. 155: Removing/Installing Remote Controlled Radio Switch

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
REMOVAL SERVICE POINT << A >> REMOTE CONTROLLED RADIO SWITCH REMOVAL Use a tool to hold the tabs on the remote controlled radio switch, and push out the
switch b
y your fin
ger.
WARNING:
Before removing the air bag module, refer to AIR BAG RESTRAINT SYSTEMS
).
When removing and installing the steering
wheel, do not let it bump against the air bag
module.

2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Radio With Tape Player & Cd Player - Endeavor