2004 MITSUBISHI ENDEAVOR air conditioning

Fig. 71: Identifying Air Mix Damper Control Motor Checking Procedure

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

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

YES:
Replace the A/C-ECU. Then go to Step 7.
NO:
Replace the air mixing damper control motor and potentiometer. Then go
to Step 7.
STEP 7. Recheck for diagnostic trouble code.

Check a
gain if the DTC is set.

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

1. Connect scan tool MB991958 to the data link connec
tor

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

Fig. 72: 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:
Replace the A/C-ECU. On completion, check that the DTC is not reset.
NO:
There is an intermittent malfunction such as poor engaged connector(s) or
open circuit (Refer to
HOW TO USE TROUBLESHOOTING/
INSPECTION SERVICE POINTS
).
DTC B1061, B1062: MODE SELECTION DAMPER CONTROL MOTOR AND POTENTIOMETER Fig. 73: View Of Mode Selection Damper Control Motor Potentiometer CircuitCourtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor

Fig. 74: Identifying Connectors C
-16 And C
-17
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor

Fig. 75: Identifying Connectors C
-103,C
-104 And C
-123

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

DTC SET CONDITION
DTC B1061 or B1062 is set if there is an open or short circuit in the
potentiometer input circuit, or if there is an open in the power circuit, or
ground circuit.
TECHNICAL DESCRIPTION (COMMENT)
CURRENT TROUBLE
The A/C-ECU, the mode selection damper control motor and potentiometer, or
connector(s) or wiring between the two may be defective.
PAST TROUBLE
2004 Mitsubishi Endeavor LS
2004 HVAC Heater Air Conditioning, Ventilation - Endeavor

If DTC B1061 or B1062 is stored as a past trouble, carry out diagnosis with
particular emphasis on wiring and connector(s) between the A/C-ECU and the
mode selection damper control motor and potentiometer. If the connectors and
wiring are normal, and obviously the ECU is the cause of the trouble, replace
the ECU. If in doubt, do not replace the ECU.
TROUBLESHOOTING HINT
Malfunction of connector. Malfunction of the harness. Malfunction of the mode selection damper control motor and potentiometer. Malfunction of the A/C-ECU.
DIAGNOSIS REQUIRED SPECIAL TOOLS:

MB991223: Harness Set MB991958: Scan Tool (MUT-III Sub Assembly)
MB991824: Vehicle Communication Interface (V.C.I.) MB991827: MUT-III USB Cable MB991910: MUT-III Main Harness A (Vehicles with CAN
communication system)
STEP 1. Using scan tool MB991958, diagnose the CAN bus line.

Use scan tool MB991958 to diagnose the CAN bus lines.
1. Connect scan tool MB991958 to the data link connec
tor.

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

Fig. 76: Connectin
g Scan Tool MB991958 To Data Link Connector

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