check engine MITSUBISHI ENDEAVOR 2004 Service Service Manual

Fig. 9: Measuring Voltage Between Terminal 3 & Ground

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Q: Is there voltage battery positive voltage when the ignition switch is
turned to the "ON" position?
YES: Go to Step 8 .
NO: Go to Step 2.
STEP 2. Check the fan control relay.
Refer to FAN CONTROL RELAY CONTINUITY CHECK
.
Q: Is the fan control relay in good condition?
YES: Go to Step 3.

2004 Mitsubishi Endeavor Limited 2004 ENGINE Engine Cooling - Endeavor

NO: Replace it, then go to Step 1 .
STEP 3. Check the MFI relay.
Refer to MULTIPORT FUEL INJECTION (MFI) RELAY AND
THROTTLE ACTUATOR CONTROL MOTOR RELAY CONTINUITY CHECK
.
Q: Is the MFI relay in good condition?
YES: Go to Step 4.
NO: Replace it, then go to Step 1 .
STEP 4. Check for harness dama
ge between fusible link number 2 and fan
control relay connector A-10X (terminal 4).
Fi
g. 10: Checkin
g Harness Dama
ge

2004 Mitsubishi Endeavor Limited 2004 ENGINE Engine Cooling - Endeavor

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.
Q: Are the harness wires between fusible link number 2 and fan control
relay connector A-10X damaged?
YES: Repair or replace them, then go to Step 14 .
NO: Go to Step 5.
STEP 5. Check for harness damage between fan control relay connector
A-10X (terminal 2) and fan control module connector A-23 (terminal 3).
Fig. 11: Identifying Connector A
-10X

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2004 Mitsubishi Endeavor Limited 2004 ENGINE Engine Cooling - Endeavor

Fig. 12: Identifying Connector A
-23
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Q: Are the harness wires between fan control relay connector A-10X
(terminal 2) and fan control module connector A-23 (terminal 3)
damaged?
YES: Repair or replace them, then go to Step 14 .
NO: Go to Step 6.
STEP 6. Check intermediate connector A-13 for loose, corroded or
damaged terminals, or terminals pushed back in the connector.

2004 Mitsubishi Endeavor Limited 2004 ENGINE Engine Cooling - Endeavor

Fig. 13: Identifying Connector A
-13
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Q: Are the connectors and terminals in good condition?
YES: Go to Step 7.
NO: Repair or replace the damaged components.
STEP 7. Check for harness damage between MFI relay connector B-16X
and fan control relay connector A-10X.

2004 Mitsubishi Endeavor Limited 2004 ENGINE Engine Cooling - Endeavor

Fig. 14: Identifying Connector A
-10X & B
-16X

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Q: Are the harness wires between MFI relay connector B-16X (terminal 4)
and fan control relay connector A-10X (terminal 1) damaged?
YES: Repair or replace them, then go to Step 14 .
NO: Go to Step 8.
STEP 8. Check for harness damage between fan control relay connector
A-10X (terminal 3) and ground.

2004 Mitsubishi Endeavor Limited 2004 ENGINE Engine Cooling - Endeavor

Fig. 15: Identifying Connector A
-10X

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Q: Are the harness wires between fan control relay connector A-10X
(terminal 3) and ground damaged?
YES: Repair or replace them, then go to Step 14 .
NO: Go to Step 9.
STEP 9. Check the circuit at fan control module connector A-23 (terminal
1).
1. Disconnect fan control module connector A-23, and measure at the
harness side connector.

2004 Mitsubishi Endeavor Limited 2004 ENGINE Engine Cooling - Endeavor

Fig. 17: Checking Resistance

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Q: Is the resistance less than 2 ohms?
YES: Go to Step 11 .
NO: Go to Step 10.
STEP 10. Check the harness wire between fan control module connector
A-23 (terminal 1) and ground.

2004 Mitsubishi Endeavor Limited 2004 ENGINE Engine Cooling - Endeavor

Fig. 18: Checking Harness Wire Between Fan Control Module Connector A-23
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Q: Are the harness wires between fan control module connector A-23
(terminal 1) and ground damaged?
YES: Repair or replace them, then go to Step 14 .
NO: Go to Step 11.
STEP 11. Measure the output circuit voltage at PCM connector B-18
(terminal 10) by using check harness special tool MB991923.
1. Disconnect all the connectors from the PCM.

2004 Mitsubishi Endeavor Limited 2004 ENGINE Engine Cooling - Endeavor

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.
2. Connect special tool MB991923 (check harness) between the PCM and
the bod
y-side harness connector.

2004 Mitsubishi Endeavor Limited 2004 ENGINE Engine Cooling - Endeavor