MITSUBISHI ENDEAVOR 2004 Service Repair Manual

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

Fig. 59: Locating Connectors C
-16, C
-17 And C
-109
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Q: Are the wiring harness between A/C-ECU connectors C-16 (terminals
16 and 20), C-17 (terminal 29) and air mixing damper control motor and
potentiometer connector C-109 (terminals 5, 7 and 3) in good condition?

YES:
Go to Step 6.
NO
: Re
pair the wirin
g harness. Then
go to Ste
p 7 .
NOTE: Also check joint connectors C-103 and C-104 for loose,
corroded, or damaged terminals, or terminals pushed
back in the connector. If joint connector C-103 or C-104
is damaged, repair or replace the connector as
described in HARNESS CONNECTOR INSPECTION
.

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

Fig. 60: Locating Connectors C
-103 And C
-104

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

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

STEP 6. Check the air mixing damper control motor and potentiometer.

Fig. 61: Identifying Damper Position

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

1. Operate the air mixing damper control motor as described in the table
below. CAUTION: Do not apply battery voltage when the damper is
in the MAX COOL or MAX HOT position.

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

Fig. 62: Air Mixing Damper Control Motor Operating Table

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

2. Measure the resistances between connector terminals 3 and 5, and between
3 and 7, while the air mixing damper control motor is running. The
resistances should change gradually within the standard value.
Standard value: 1.7 (MAX HOT) - 5.0 (MAX COOL) kohm

Q: Are the air mixing damper control motor and potentiometer in good
condition?

YES:
Go to Ste
p 7.

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

NO:
Replace the air mixing damper control motor and potentiometer.
Then go to Step 7.
STEP 7. Recheck for diagnostic trouble code.

Check again if the DTC is set.
1. Connect scan tool MB991958 to the data link connec
tor

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

Fig. 63: Connectin
g Scan Tool MB991958 To Data Link Connector

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

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
2. Turn the ignition switch to the "ON" position.
3. Check if the DTC is set.
4. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the check result satisfactory?

YES:
The procedure is complete.
NO:
Return to Step 1 .
DTC B1045: AIR MIXING DAMPER CONTROL MOTOR AND POTENTIOMETER (ACTIVATING SYSTEM
FAILURE)
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor

Fig. 64: Air Mixing Damper Control Motor Circuit Diagram
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
Fig. 65: Identifying Connectors C
-16 And C
-109

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

DTC SET CONDITION
If the air mixing damper control motor does not work normally, DTC
No.B1045 will be set.
TECHNICAL DESCRIPTION (COMMENT)
CURRENT TROUBLE
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor