Page 2345 of 3870
Fig. 254: Locating Connectors C
-104 And C
-31
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2346 of 3870
STEP 6. Measure the voltage at A/C-ECU connector C-16.
1. Disconnect A/C-ECU connector C-16 and measure the voltage at the
harness side.
Fig. 255: Locating Connector C
-16
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2. Measure the voltage between terminal 3 and ground.
The measured value should be approximately 12 volts (battery positive volta
ge).
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2347 of 3870
Fig. 256: Measuring Voltage Between Terminal 3 And Ground
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Is the measured voltage approx. 12 volts?
YES:
Go to Step 8 .
NO:
Go to Step 7.
STEP 7. Check the wiring harness between A/C-ECU connector C-16
(terminal 3) and the battery.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2348 of 3870
Fig. 257: Locating Connector C
-16
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Is the wiring harness between A/C-ECU connector C-16 (terminal 3)
and the battery in good condition?
YES:
It can be assumed that this malfunction is intermittent.
NOTE: Also check joint connector C-04 and intermediate
connector C-31 for loose, corroded, or damaged
terminals, or terminals pushed back in the connector. If
joint connector C-04 or intermediate connector C-31 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 2349 of 3870
Refer to
HOW TO USE TROUBLESHOOTING/ INSPECTION
SERVICE POINTS
.
NO:
Repair the wiring harness. Check that the air conditioning works
normall
y.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2350 of 3870
Fig. 258: Locating Connectors C
-04 And C
-31
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2351 of 3870
STEP 8. Measure the resistance at A/C-ECU connector C-17.
1. Disconnect A/C-ECU connector C-17, and measure at the wiring harness
side.
Fig. 259: Locating Connector C
-17
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2. Measure the resistance between terminal 27 and ground.
The measured value should be 2 ohms or less.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor
Page 2352 of 3870
Fig. 260: Measuring Resistance Between Terminal 27 And Ground
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Does the measured resistance value correspond with this range?
YES:
Replace the A/C-ECU, and check that the air conditioning works
normally.
NO:
Go to Step 9.
STEP 9. Check the wiring harness between A/C-ECU connector C-17
(terminal 27) and the ground.
Q: Is the wiring harness between A/C-ECU connector C-17 (terminal 27)
and ground in good condition?
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor