MITSUBISHI ENDEAVOR 2004 Service Repair Manual
Page 2221 of 3870
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
Page 2222 of 3870
normally.
Fig. 153: Locating Connector B
-16X
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2223 of 3870
Fig. 154: Locating Connector B
-20
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
STEP 15. 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 16.
NO:
Repair or replace the connector. Refer to
HARNESS
CONNECTOR INSPECTION
. Check that the air conditioning works
normally.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2224 of 3870
Fig. 155: Locating Connector C
-16
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
STEP 16. Measure the voltage at A/C-ECU connector C-16.
1. Disconnect A/C-ECU connector C-16 and measure the voltage at the relay
box side.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2225 of 3870
Fig. 156: Locating Connector C
-16
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2. Disconnect powertrain control module connector B-20 and ground harness
side terminal No.81.
3. Turn the ignition switch to the "ON" position.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2226 of 3870
Fig. 157: Locating Connector B
-20
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
4. Measure the voltage between A/C-ECU connector C-16 terminal No.10
and
ground.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2227 of 3870
Fig. 158: Measuring Voltage Between Terminal No.10 And Ground
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
The measured value should be approximately 12 volts (battery
positive voltage).
Q: Does the measured voltage correspond with this range?
YES:
Go to Step 18 .
NO:
Go to Ste
p 17.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
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).
2004 Mitsubishi Endeavor LS
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
.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor