2004 MITSUBISHI ENDEAVOR relay

Q: Is the wiring harness between front blower relay connector C-202
(terminal 1) and the ignition switch (IG2) in good condition?

YES:
The front blower motor should operate normally.
NO:
Repair the wiring harness. The front blower motor should operate
normally.
STEP 7. Measure the voltage at front blower relay connector C-202.

1. Disconnect front blower relay connector C-202, and measure the voltage
at the junction block side.
NOTE: Also check junction block connector C-215 for loose,
corroded, or damaged terminals, or terminals pushed
back in the connector. If junction block connector C-215
is damaged, repair or replace the connector as
described in HARNESS CONNECTOR INSPECTION
.

2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor

STEP 8. Check the wiring harness between front blower relay connector
C-202 (terminal 5) and fusible link (1).

Fig. 190: Identifying Fusible Link

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor

Q: Is the wiring harness between front blower relay connector C-202
(terminal 5) and fusible link (1) in good condition?

YES:
The front blower motor should operate normally.
NO:
Repair the wiring harness. The front blower motor should operate
normally.
STEP 9. Check the wiring harness between A/C-ECU connector C-16
(terminal 9) and front blower relay connector C-202 (terminal 3).

NOTE: Also check junction block connector C-216 for loose,
corroded, or damaged terminals, or terminals pushed
back in the connector. If junction block connector C-216
is damaged, repair or replace the connector as
described in HARNESS CONNECTOR INSPECTION
.

2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor

Fig. 193: Locating Connector C
-211

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Q: Is the wiring harness between A/C-ECU connector C-16 (terminal 9)
and front blower relay connector C-202 (terminal 3) in good condition?

YES:
Go to Step 10.
NO:
Repair the wiring harness. The front blower motor should operate
normally.
STEP 10. Check the wirin
g harness between front blower motor connector
C-111 (terminal 1) and front blower relay connector C-202 (terminal 4). NOTE: Also check junction block connector C-211 for loose,
corroded, or damaged terminals, or terminals pushed
back in the connector. If junction block connector C-211
is damaged, repair or replace the connector as
described in HARNESS CONNECTOR INSPECTION
.

2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor

Q: Is the wiring harness between front blower motor connector C-111
(terminal 1) and front blower relay connector C-202 (terminal 4) in good
condition?

YES:
The front blower motor should operate normally.
NO:
Repair the wiring harness. The front blower motor should operate
normally.
STEP 11. Check the front blower fan and motor operation.

When battery voltage is applied between the terminals, check that the motor
operates. Also, check that there is no abnormal noise.
Q: Is there any abnormal noise?

YES:
Go to Step 12.
NO:
Replace the front blower relay. The front blower motor should
o
perate normall
y.
NOTE: Also check junction block connector C-215 for loose,
corroded, or damaged terminals, or terminals pushed
back in the connector. If junction block connector C-215
is damaged, repair or replace the connector as
described in HARNESS CONNECTOR INSPECTION
.

2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor

Fig. 218: Identifying Connectors F
-01, F
-03 And F
-05
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

TECHNICAL DESCRIPTION (COMMENT) If the defogger does not operate when the defogger switch is turned on, the
defogger relay system may be defective. TROUBLESHOOTING HINTS
Malfunction of the A/C-ECU Malfunction of the defogger relay Damaged harness wires or connectors

2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor

DIAGNOSI
S
Required Special Tools:

MB991223: Test Harness Set STEP 1. Check the A/C and outside/inside air selection damper control
motor operation.

Q: Do the A/C and outside/inside air selection damper control motor work
normally?

YES:
Go to Step 2.
NO:
Refer to
INSPECTION PROCEDURE 10 MALFUNCTION OF
THE A/C
-ECU POWER SUPPLY SYSTEM
.
STEP 2. Check defogger relay connector C-201 for loose, corroded or
damaged terminals, or terminals pushed back in the connector.

Q: Is defogger relay connector C-201 in good condition?

YES:
Go to Step 3.
NO:
Repair or replace the connector. Refer to
HARNESS
CONNECTOR INSPECTION
. The defogger system should work
normall
y.

2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor

Fig. 219: Locating Connector C
-201

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

STEP 3. Check the defogger relay continuity.


2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor