check engine MITSUBISHI ENDEAVOR 2004 Service Manual PDF

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
Fig. 33: Identifying Connector A
-23
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Are the harness wires between PCM connector B-18 and fan control
module connector A-23 damaged?
YES: Repair or replace them, then go to Step 7 .
NO: Go to Step 6.
STEP 6. Check the fan control module at PCM connector B-18.
1. Disconnect PCM connector
B-18.

2004 Mitsubishi Endeavor Limited 2004 ENGINE Engine Cooling - Endeavor

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
2. Pull out the pin 10 and connect it to the body ground.
Fig. 35: Checking Fan Control Module

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
3. Reconnect PCM connector B-18 with pin 10 still removed.
4. Turn the ignition switch to the "ON" position.
Q: Do the radiator fan motor and condenser fan motor stop?
YES: Re
place the PCM. Then
go to Ste
p 7.

2004 Mitsubishi Endeavor Limited 2004 ENGINE Engine Cooling - Endeavor

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

1. Check that the coolant level is up to the filler neck. Install a radiator tester and
apply 160 kPa (23 psi) pressure, and then check for leakage from the radiator
hose or connections.
burned by hot coolant.
CAUTION:
Be sure to completely clean away any moisture
from the places checked. When the tester is taken out, be careful not to
spill any coolant. Be careful when installing and removing the
tester and when testing not to deform the filler
neck of the radiator.

2004 Mitsubishi Endeavor Limited 2004 ENGINE Engine Cooling - Endeavor

Fig. 36: Checking For Coolent Leak
s
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2. If there is leakage, repair or replace the appropriate part.
RADIATOR CAP PRESSURE CHECK 1. Use a cap adapter to attach the cap to the tester.
2. Increase the pressure until the indicator of the gauge stops moving.
Minimum limit: 83 kPa (12 psi)
Standard value: 93 - 123 kPa (14 - 18 psi)
Fi
g. 37: Performin
g Radiator Ca
p Pressuer Check
NOTE: Be sure that the cap is clean before testing. Rust or other
foreign material on the cap seal will cause an improper
reading.
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. 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

Fig. 45: Checking Fan Control Relay

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

2004 Mitsubishi Endeavor Limited 2004 ENGINE Engine Cooling - Endeavor

Fig. 53: Connecting Radiator Lower Hose

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
INSPECTION Thermostat Check 1. Immerse the thermostat in water, and heat the water while stirring. Check the
thermostat valve opening temperature.
Standard value: Valve opening temperature: 88°1.5°C. (190+/-3°F)
2004 Mitsubishi Endeavor Limited 2004 ENGINE Engine Cooling - Endeavor