Page 2201 of 3870
Fig. 132: Locating Connector B
-16X
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
STEP 6. Check the A/C compressor clutch relay continuity.
Follow the table below to check the A/C compressor clutch relay for
continuit
y.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2203 of 3870
Fig. 133: Checking A/C Compressor Clutch Relay For Continuity
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Fig. 134: A/C Compressor Clutch Relay
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Is the A/C compressor clutch relay in good condition?
YES:
Go to Step 7.
NO:
Replace the A/C compressor clutch relay. Check that the air
conditioning works normally.
STEP 7. Check powertrain control module connector B-20 and A/C
compressor assembly B-114 for loose, corroded or damaged terminals, or
terminals pushed back in the connector.
Q: Are powertrain control module connector B-20 and A/C compressor
assembly B-114 in good condition?
YES:
Go to Step 8.
NO:
Repair or replace the connector. Refer to
HARNESS
CONNECTOR INSPECTION
. Check that the air conditionin
g works
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2205 of 3870
Fig. 136: Locating Connector B
-114
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
STEP 8. Measure the voltage at A/C compressor assembly connector B-
114.
1. Disconnect A/C compressor assembly connector B-114 and measure the
volta
ge at the rela
y box side.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2209 of 3870
Fig. 140: Measuring Voltage Between Terminal 1 And Ground
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
The measured value should be approximately 12 volts (battery
positive voltage).
Q: Is the measured voltage approx. 12 volts?
YES:
Go to Step 15 .
NO:
Go to Step 9.
STEP 9. Measure the voltage at A/C compressor clutch relay connector B-
16X.
CAUTION: The top and bottom of the A/C compressor
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2210 of 3870
1. Disconnect A/C compressor connector B-16X and measure the voltage at
the relay box side.
2. Turn the ignition switch to the "ON" position.
Fig. 141: Locating Connector B
-16X
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
3. Measure the voltage between terminal 2 and ground.
The measured value should be approximately 12 volts (battery
positive voltage).
connector are difficult to identify. Prior to
inspection, confirm the trian
gle mark on the rela
y
box.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2211 of 3870
Q: Is the measured voltage approx. 12 volts?
YES:
Go to Step 11 .
NO:
Go to Step 10.
Fig. 142: Measuring Voltage Between Terminal 2 And Ground
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
STEP 10. Check the wiring harness between A/C compressor clutch relay
connector
B-16X (terminal 2) and the i
gnition switch (IG2)
.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2212 of 3870
Fig. 143: Locating Connector B
-16X
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Is the wiring harness between A/C compressor clutch relay connector
B-16X (terminal 2) and the ignition switch (IG2) in good condition?
YES:
It can be assumed that this malfunction is intermittent. Refer to
NOTE: Also check intermediate connector A-13, joint
connector C-04, junction block connectors C-214 and C-
215 for loose, corroded, or damaged terminals, or
terminals pushed back in the connector. If intermediate
connector A-13, joint connector C-04, junction block
connector C-214 or 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 2216 of 3870
STEP 11. Measure the voltage at A/C compressor clutch relay connector
B-16X.
1. Disconnect A/C compressor clutch relay connector B-16X and measure
the voltage at the wiring harness side.
Fig. 147: Locating Connector B
-16X
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2. Measure the volta
ge between terminal 1 and
ground.
CAUTION: The top and bottom of the A/C compressor clutch
relay connector are difficult to identify. Prior to
inspection, confirm the trian
gle mark on the rela
y
box.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
