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
Page 2319 of 3870
Fig. 232: Locating Connector C
-16
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Is the wiring harness between defogger relay connector C-201
(terminal 3) and A/C-ECU connector C-16 (terminal 8) in good condition?
YES:
Go to Step 12.
NO:
Repair or replace the wiring harness. Refer to
HARNESS
CONNECTOR INSPECTION
. Check that the defogger system works
normall
y.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2321 of 3870
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
STEP 12. Check the wiring harness between defogger relay connector C-
201 (terminal 4) and defogger connector F-01 (terminal 1).
NOTE: Also check junction block connector F-03 and junction
block connector C-204 for loose, corroded, or damaged
terminals, or terminals pushed back in the connector. If
intermediate connector F-03 or junction block
connector C-204 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 2323 of 3870
Q: Is the wiring harness between defogger relay connector C-201
(terminal 4) and defogger connector F-01 (terminal 1) in good condition?
YES:
Replace the A/C-ECU. The defogger should operate normally.
NO:
Repair or replace the wiring harness. Refer to
HARNESS
CONNECTOR INSPECTION
. Check that the defogger system works
normall
y.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2326 of 3870
1. Disconnect defogger connector F-05, and measure at the wiring harness
side.
Fig. 237: Locating Connector F
-05
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2. Measure the resistance value between terminal 1 and ground.
The measured value should be 2 ohms or less.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2327 of 3870
Fig. 238: Measuring Resistance Between Terminal 1 And GroundCourtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Does the measured resistance value correspond with this range?
YES:
Go to Step 16 .
NO:
Go to Step 15.
STEP 15. Check the wiring harness between defogger connector F-05
(terminal 1) and ground.
Q: Is the wiring harness between defogger connector F-05 (terminal 1) and
ground in good condition?
YES:
No action is necessar
y and testin
g is com
plete.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor