air condition compressor MITSUBISHI ENDEAVOR 2004 Service User Guide

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

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

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

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

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

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

The measured value should be approximately 12 volts (battery
positive voltage).
Q: Is the measured voltage approx. 12 volts?

YES:
Go to Step 13 .
NO:
Go to Step 12.
Fig. 148: Measuring Voltage Between Connector Terminal 1 And Ground

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

STEP 12. Check the wiring harness between A/C compressor clutch relay
connector B-16X
(terminal 1
) and the batter
y.

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

Fig. 149: 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 1) and the battery in good condition?

YES:
It can be assumed that this malfunction is intermittent.
Refer to
HOW TO USE TROUBLESHOOTING/ INSPECTION
SERVICE POINTS
.
NOTE: Also check intermediate connector A-13 for loose,
corroded, or damaged terminals, or terminals pushed
back in the connector. If intermediate connector A-13 is
damaged, repair or replace the connector as described
in HARNESS CONNECTOR INSPECTION
.

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

NO:
Repair the wiring harness. Check that the air conditioning works
normally.
STEP 13. Check the wiring harness between A/C compressor clutch relay
connector B-16X (terminal 4) and A/C compressor connector B-114
(terminal 1).

Q: Is the wiring harness between A/C compressor clutch relay connector
B-16X (terminal 4) and A/C compressor connector B-114 (terminal 1) in
good condition?

YES:
Go to Step 14.
NO:
Repair the wiring harness. Check that the air conditioning works
normally.
Fig. 150: Locating Connector A
-13
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

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

Fig. 152: Locating Connectors B
-16X And B
-114

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

STEP 14. Check the wiring harness between powertrain control module
connector B-20 (terminal 81) and A/C compressor clutch relay connector
B-16X (terminal 3).

Q: Is the wiring harness between powertrain control module connector B-
20 (terminal 81) and A/C compressor clutch relay connector B-16X
(terminal 3) in good condition?

YES:
It can be assumed that this malfunction is intermittent.
Refer to
HOW TO USE TROUBLESHOOTING/ INSPECTION
SERVICE POINTS
.
NO:
Re
pair the wirin
g harness. Check that the air con
ditionin
g works

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