Page 2228 of 3870
Fig. 159: Measuring Voltage Between Terminal 10 And Ground
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
STEP 17. Check the wiring harness between A/C compressor clutch relay
connector B-16X (terminal 4) and A/C-ECU connector C-16 (terminal 10).
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2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2229 of 3870
Fig. 160: Locating Connector B
-16X
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2230 of 3870
Fig. 161: Locating Connector C
-16
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Is the wiring harness between A/C compressor clutch relay connector
B-16X (terminal 4) and A/C-ECU connector C-16 (terminal 10) in good
condition?
YES:
It can be assumed that this malfunction is intermittent.
NOTE: Also check intermediate connectors A-13 and C-24 for
loose, corroded, or damaged terminals, or terminals
pushed back in the connector. If intermediate connector
A-13 or C-24 is damaged, repair or replace the
connector as described in HARNESS CONNECTOR
INSPECTION
.
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Refer to
HOW TO USE TROUBLESHOOTING/ INSPECTION
SERVICE POINTS
.
NO:
Repair the wiring harness. Check that the air conditioning works
normally.
Fig. 162: Locating Connector A
-13
Courtes
y of MITSUBISHI MOTOR SALES OF AMERICA
.
2004 Mitsubishi Endeavor LS
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Page 2232 of 3870
Fig. 163: Locating Connector C
-24
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
STEP 18. Check the refrigerant temperature switch.
1. Dip the metal part of the cooling temperature switch into engine oil and
increase the oil temperature using a gas burner or similar.
CAUTION: Do not heat more than necessary.
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Fig. 164: Checking Refrigerant Temperature Switch
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2. When the oil temperature reaches the standard value, check that voltage is
supplied between the terminals.
Standard value:
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Fig. 165: Refrigerant Temperature Switch Continuity
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
NOTE: When the oil temperature is 155°C (311°F) or m ore and
there is no continuity, the resistance will not be 2ohm
or lower until the oil temperature reduces to 125°C (257°
F) or less.
Fig. 166: Oil Temperature Specification
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
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Page 2235 of 3870
Q: Is the refrigerant temperature switch operating properly?
YES:
Go to Step 19.
NO:
Replace the refrigerant temperature switch. Check that the air
conditioning works normally.
STEP 19. Check the air conditioning compressor clutch operation.
Connect the compressor connector terminal to the battery positive (+) terminal
and ground the battery's negative (-) terminal to the compressor unit. At that
time, the air conditioning compressor clutch should make a definite operating
sound.
Q: Can the sound (click) of the air conditioning compressor clutch
operation be heard?
YES:
Go to Step 20.
NO:
Replace the compressor magnet clutch. Check that the air
conditionin
g works normall
y.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
