2004 MITSUBISHI ENDEAVOR heater

YES:
Replace the A/C-ECU.
NO:
Refer to
INSPECTION PROCEDURE 3, INSIDE/OUTSIDE AIR
CHANGEOVER IS NOT POSSIBLE
.
INSPECTION PROCEDURE 3: OUTSIDE/INSIDE AIR CHANGEOVER IS NOT POSSIBLE
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor

Fig. 115: View Of Outside/Inside Air Selection Motor Circuit Diagram
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
Fig. 116: Identifying Connectors C
-16 And C
-105

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor

Fig. 117: Identifying Connector C
-103

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor

Fig. 118: Identifying Connectors C
-211 And C
-215

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

CIRCUIT OPERATION If the outside/inside air selection damper control motor does not operate normally,
the outside/inside air selection damper control motor system may be defective. TROUBLESHOOTING HINTS
Malfunction of the outside/inside air selection damper control motor Malfunction of the A/C-ECU Damaged harness wires or connectors
DIAGNOSIS REQUIRED SPECIAL TOOL:

MB991223: Test Harness Set

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

STEP 1. Check the defogger and A/C operations.

Q: Do the defogger and A/C work normally?

YES:
Go to Step 2.
NO:
Refer to
INSPECTION PROCEDURE 10 MALFUNCTION OF
THE A/C
-ECU POWER SUPPLY SYSTEM
.
STEP 2. Check outside/inside air selection damper control motor
connector C-106 for loose, corroded or damaged terminals, or terminals
pushed back in the connector.

Q: Is outside/inside air selection damper control motor connector C-106 in
good condition?

YES:
Go to Step 3.
NO:
Repair or replace the connector. Refer to
HARNESS
CONNECTOR INSPECTION
. Check that the outside/inside air
selection dam
per control motor works normall
y.

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

Fig. 119: Locating Connector C
-106

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

STEP 3. Measure the voltage at outside/inside air selection damper control
motor connector C-106.

1. Disconnect outside/inside air selection damper control motor connector C-
106, and measure the voltage at the harness side.
2. Turn the i
gnition switch to the "ON"
position.

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

Fig. 120: Locating Connector C
-106

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

3. Measure the voltage between terminal 1 and ground.
The measured value should be approximately 12 volts (battery
positive voltage).
Q: Does the measured voltage correspond with this range?

YES:
Go to Step 5 .
NO:
Go to Ste
p 4.

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