MITSUBISHI ENDEAVOR 2004 Service Repair Manual

The rear blower motor should operate normally. NO:
Go to Step 5.
STEP 5. Check the wiring harness between resistor connector C-21
(terminal 1, 3 and 6) and floor console rear A/C switch assembl
y connector
C-19 (terminal 5, 1 and 6).

Q: Is the wiring harness between resistor connector C-21 (terminal 1, 3
and 6) and floor console rear A/C switch assembly connector C-19
(terminal 5, 1 and 6) in good condition?

2004 Mitsubishi Endeavor LS
2004 HVAC Automatic Air Conditioning - Endeavor

Fig. 65: Identifying Connectors C
-19 And C
-21
Courtes
y of MITSUBISHI MOTOR SALES OF AMERICA
.

2004 Mitsubishi Endeavor LS
2004 HVAC Automatic Air Conditioning - Endeavor

YES:
It can be assumed that this malfunction is intermittent.
Refer to
HOW TO USE TROUBLESHOOTING/INSPECTION
SERVICE POINTS
.
NO:
Repair the wiring harness. The rear blower motor should operate
normally.
DATA LIST REFERENCE TABLE DATA LIST REFERENCE

CHECK AT A/C-ECU TERMINAL SCAN TOOL
(MUT-III)
DISPLAY
ITEM NO.
INSPECTION
ITEM
INSPECTION
REQUIREMENT
NORMAL
VALUE
Inside
temperature
sensor
01
Interior
temperature
sensor
Ignition switch:
ON
Inside air
temperature
and
temperature
displayed on
the scan tool
are identical.
Photo sensor
06
Photo sensor
Ignition switch:
ON
Amount o
f
light is
proportional to
voltage
displayed on
the scan tool.
NOTE: For the data list items other than above, refer to DATA LIST REFERENCE TABLE
.

2004 Mitsubishi Endeavor LS
2004 HVAC Automatic Air Conditioning - Endeavor

Fig. 66: Identifying A/C
-ECU Terminal

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

2004 Mitsubishi Endeavor LS
2004 HVAC Automatic Air Conditioning - Endeavor

Fig. 67: A/C
-ECU Terminal Chart

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
SPECIAL TOOLS
2004 Mitsubishi Endeavor LS
2004 HVAC Automatic Air Conditioning - Endeavor

Fig. 68: Identifying Special Tools

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
ON-VEHICLE SERVICE POWER RELAY CHECK REAR BLOWER RELAY CONTINUITY CHECK
2004 Mitsubishi Endeavor LS
2004 HVAC Automatic Air Conditioning - Endeavor

Fig. 69: Identifying Power Relay Check

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

2004 Mitsubishi Endeavor LS
2004 HVAC Automatic Air Conditioning - Endeavor

REAR BLOWER RELAY CONTINUITY CHEC
K
REAR BLOWER UNIT REMOVAL AND INSTALLATION Fig. 70: Removing And Installing Rear Blower Unit

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
BATTERY VOLTAGE
TESTER
CONNECTION
SPECIFIED
CONDITION
Not applied
1 - 4
Open circuit
Connect terminal 3 to the
positive battery terminal

Connect terminal 2 to the
negative battery terminal
1 - 4
Less than 2 ohms

2004 Mitsubishi Endeavor LS
2004 HVAC Automatic Air Conditioning - Endeavor

INSPECTION RESISTER CHECK Use an ohmmeter to measure the resistance between the terminals. Check that the
measured resistance is at the standard value.
Standard value:
REAR BLOWER RELAY CONTINUITY CHECK
Fig. 71: Identifying Standard ValueMEASUREMENT TERMINAL
STANDARD VALUE
Between terminals 1 and 3 (ME)
2.2
Between terminals 1 and 6 (LO)
9.7

2004 Mitsubishi Endeavor LS
2004 HVAC Automatic Air Conditioning - Endeavor

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
BLOWER FAN AND MOTOR CHECK When battery voltage is applied between the terminals, check that the motor
operates. Also, check that there is no abnormal noise.
Fig. 72: Checking Blower Fan And Motor

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
FLOOR CONSOLE REAR A/C SWITCH ASSEMBLY CHECK Follow the table below to check the floor console rear A/C switch assembly for
continuity.
2004 Mitsubishi Endeavor LS
2004 HVAC Automatic Air Conditioning - Endeavor