Page 2304 of 3870
Fig. 220: Identifying Defogger Relay
Courtes
y of MITSUBISHI MOTOR SALES OF AMERICA
.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2305 of 3870
Follow the table below to check the defogger relay for continuity. DEFOGGER RELAY CONTINUITY
Q: Is the defogger relay in good condition?
YES:
Go to Step 4.
NO:
Replace the defogger relay. The defogger system should work
normally.
STEP 4. Check defogger connector F-01 for loose, corroded or damaged
terminals, or terminals pushed back in the connector.
Q: Is defogger connector F-01 in good condition?
YES:
Go to Step 5.
NO:
Repair or replace the connector. Refer to
HARNESS
CONNECTOR INSPECTION
. Check that the defogger system works
normall
y.
BATTERY VOLTAGE
CONNECT TESTER
BETWEEN
SPECIFIED
CONDITION
Not applied
4 - 5
Open Circuit
Connect terminal 1 to the
positive battery terminal
Connect terminal 3 to the
negative battery terminal
4 - 5
Less than 2 ohms
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2308 of 3870
Fig. 223: Measuring Voltage Between Terminal 1 And Ground
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
STEP 6. Measure the voltage at defogger relay connector C-201.
1. Disconnect defogger relay connector C-201, and measure the voltage at
the junction block side.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2310 of 3870
Fig. 225: Measuring Voltage Between Terminal 5 And Ground
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
STEP 7. Check the wiring harness between defogger relay connector C-
201 (terminal 5) and the fusible link (1).
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2313 of 3870
Q: Is the wiring harness between defogger relay connector C-201
(terminal 5) and the fusible link (1) in good condition?
YES:
Check that the defogger system works normally.
NO:
Repair the wiring harness. Check that the defogger system works
normally.
STEP 8. Measure the voltage at defogger relay connector C-201.
1. Disconnect defogger relay connector C-201, and measure the voltage at
the junction block side.
2. Turn the i
gnition switch to the "ON"
position.
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
Page 2315 of 3870
Fig. 229: Measuring Voltage Between Terminal 1 And Ground
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
STEP 9. Check the wiring harness between defogger relay connector C-
201 (terminal 1) and ignition switch (IG2).
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2317 of 3870
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
Q: Is the wiring harness between defogger relay connector C-201
(terminal 1) and ignition switch (IG2) in good condition?
YES:
Check that the defogger system works normally.
NO:
Repair the wiring harness. Check that the defogger system works
normally.
STEP 10. Check A/C-ECU connector C-16 for loose, corroded or dama
ged
terminals, or terminals pushed back in the connector.
Q: Is A/C-ECU connector C-16 in good condition?
YES:
Go to Step 11.
NO:
Repair or replace the connector. Refer to
HARNESS
CONNECTOR INSPECTION
. Check that the defogger system works
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
Page 2318 of 3870
Fig. 231: Locating Connector C
-16
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
STEP 11. Check the wiring harness between defogger relay connector C-
201 (terminal 3) and A/C-ECU connector C-16 (terminal 8).
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
