MITSUBISHI ENDEAVOR 2004 Service Repair Manual

Fig. 30: Connecting 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. Ignition switch: ON
3. Check the data list.
Item 03: air thermo sensor.
Check that the passenger room temperature matches the displayed
value on the scan tool while the engine is cold.
4. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the sensor within the specified range?

YES:
Replace the A/C-ECU. Then go to Step 7 .
NO:
Go to Step 4.
STEP 4. Check A/C-ECU connectors C-16, C-17 and air thermo sensor
connector C-122 for loose, corroded or damaged terminals, or terminals
pushed back in the connector.

Q: Are A/C-ECU connectors C-16, C-17 and air thermo sensor connector
C-122 in good condition?

YES:
Go to Step 5.
NO:
Repair or replace the connector. Refer to
HARNESS
CONNECTOR INSPECTION
. Then
go to Ste
p 7 .
NOTE: When this DTC is set and the system is fail-safe
status, the value of service data displays -6°C.

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

Fig. 31: Locating Connectors C
-16 And C
-17
Courtes
y of MITSUBISHI MOTOR SALES OF AMERICA
.

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

Fig. 32: Locating Connector C
-122

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

STEP 5. Check the wiring harness between A/C-ECU connector C-16
(terminal 20), C-17 (terminal 24) and air thermo sensor connector C-122
(terminals 1 and 2)
.

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

Fig. 33: Locating 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. 34: Locating Connectors C
-122 And C
-104

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.


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

Q: Is the wiring harness between A/C-ECU connector C-16 (terminal 20),
C-17 (terminal 23) and air thermo sensor connector C-122 (terminals 1
and 2) in good condition?

YES:
Go to Step 6.
NO:
Repair the wiring harness. Then go to Step 7 .
STEP 6. Check the air thermo sensor.

1. Disconnect the air thermo sensor connector C-122.
NOTE: Also check joint connector C-104 for loose, corroded,
or damaged terminals, or terminals pushed back in the
connector. If joint connector 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. 35: Locating Connector C
-122

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

2. Measure the resistance between connector terminals 1 and 2 under at least
two different temperatures. The resistance values should generally match
those in the graph.
Fig. 36: Terminal Resistance Graph

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Q: Is the air thermo sensor in good condition?

YES:
Replace the A/C-ECU. Then go to Step 7.
NO:
Re
place the air thermo sensor. Then
go to Ste
p 7.
NOTE: The temperature at the check should not exceed the
range in the graph.

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

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. 37: Connecting Scan Tool MB991958 To Data Link Connector

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

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