2004 MITSUBISHI ENDEAVOR can bus

2. Turn the ignition switch to the "ON" position.
3. Diagnose the CAN bus line. (Refer to AUTO
-CRUISE CONTROL
SYSTEM DIAGNOSTIC TROUBLESHOOTING STRATEGY
, How
to diagnose CAN bus line).
4. Turn the ignition switch to the "LOCK" (OFF) position.
5. Disconnect scan tool MB991958.
Q: Is the check result satisfactory?
YES: Go to Step 2
NO: Repair the CAN bus lines. (Refer to DIAGNOSTIC TROUBLE
CODE DIAGNOSIS
). Then go to Step 4 .
STEP 2. Using scan tool MB991958, read the MFI diagnostic trouble code.
1. Connect scan tool MB991958 to the data link connector. (Refer to AUTO
-
CRUISE CONTROL SYSTEM DIAGNOSTIC TROUBLESHOOTING STRATEGY
).
CAUTION: To prevent damage to scan tool MB991958,
always turn the ignition switch to the
"LOCK" (OFF) position before connecting or
disconnecting scan tool MB991958.

2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Auto, Cruise Control System - Endeavor

Fig. 143: Identifying Connector C
-105,C
-110,C
-113

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Are radio and CD player connector C-105 or radio, CD player and CD
changer connector C-105, C-110, C-113 and amplifier connector C-11, C-
12 in good condition?
YES: Go to Step 4.
NO: Repair or replace the damaged component(s). Check that there is no
noise.
STEP 4. Check that noise appears when the radio switch is turned on
while the vehicle is sto
pp
ed and the radio is ta
pp
ed while tuned awa
y from
a station.
Q: Does noise appear when the radio switch is turned on while the vehicle
is stopped and the radio is tapped while tuned away from a station?
YES: Go to Step 5.
NO: It may be static electricity noise.
STEP 5. Verify that the radio is correctly grounded.
The radio is connected to the ground with an assembling screw.
Q: Is the radio correctly grounded?
YES: Go to Step 6.
NO: Tighten the screw securely. Check that there is no noise.
STEP 6. Check by replacing radio and CD player.
NOTE: Body static electricity from the shock absorber rubber
bushings used to prevent vibration, tires, etc. occurs
because of separation from the ground, causing a
buzzing noise. Since no measures can be taken to
discharge the static electricity of the vehicle body.
Check that there is no noise.

2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Radio With Tape Player & Cd Player - Endeavor

Check the disk is being played in a normal mode without using special
functions such as rewinding, fast-forwarding, slow motion or pause.
Q: Is the check result normal?
YES: Go to Step 8.
NO: Check by playing the disk in a normal mode.
STEP 8. Confirm what type of sound does not come out.
Confirm what type of sound does not come out from the speakers.
Q: What type of sound does not come out? All types come out. : The
trouble can be an intermittent malfunction (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTIONS
).
No sound comes out: Go to Step 9.
The radio/CD player does not sound. : Go to Step 10 .
STEP 9. Substitute the rear display unit assembly (overhead type) and
retest the system.
Confirm that all the speakers sound when the rear display unit assembly
(overhead type) is substituted.
Q: Is the check result normal?
YES: If the system is operated via the main panel, replace the rear display
unit assembly (overhead type). If the system is operated via the remote
control, refer to INSPECTION PROCEDURE 4: THE REMOTE
CONTROL DOES NOT FUNCTION
.
NO: Check the wiring harnesses and the DIN cable between each speakers
and the rear display unit assembly (overhead type), and repair or replace if
necessary. Then go to Step 11 .
STEP 10. Substitute the M-bus adapter, and retest the system.
Confirm that all the s
peakers sound when the
M-bus ada
pter is substituted.

2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Video Entertainment System - Endeavor

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
HOW TO DIAGNOSE THE CAN BUS LINES REQUIRED SPECIAL TOOL:
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)
1. Connect scan tool MB991958 to the data link connector.
2. Turn the ignition switch to the "ON" position.
3. Select "CAN bus diagnosis" from the start-up screen.
4. When the vehicle information is displayed, confirm that it matches the vehicle
whose CAN bus lines will be diagnosed. If they match, go to Step 8 . If not, go to step 5.
5. Select the "view vehicle information" button.
6. When the vehicle information is displayed, confirm again that it matches the
vehicle which is diagnosed CAN bus line. If they match, go to Step 8 . If not, go to step 5.
7. Select the "OK" button.
8. When the options are displayed, choose the options (mark the check) and then
select "OK". CAUTION: To prevent damage to scan tool MB991958, always
turn the ignition switch to the "LOCK" (OFF) position
before connecting or disconnecting scan tool
MB991958.

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

Malfunction of connector. Malfunction of the harness. Malfunction of the ambient air temperature sensor. Malfunction of the A/C-ECU.
DIAGNOSIS REQUIRED SPECIAL TOOL:

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

2. Turn the ignition switch to "ON" position.
3. Diagnose the CAN bus line. Q: Is the check result satisfactory?

YES:
Go to Step 2.
NO:
Repair the CAN bus lines (Refer to
CAN BUS DIAGNOSTICS
TABLE
). Then go to Step 7 .
STEP 2. Recheck for diagnostic trouble code.

Recheck if the DTC is set.
1. Erase the DTC.
2. Turn the ignition switch to "ON" position.
3. Check if the DTC is set.
Q: Is the check result satisfactory?

YES:
It can be assumed that this malfunction is intermittent.
Refer to
HOW TO USE TROUBLESHOOTING/ INSPECTION
SERVICE POINTS
.
NO:
Go to Step 3.
STEP 3. Using scan tool MB991958, check data list item 02: Ambient air
temperature sensor.

1. Connect scan tool MB991958 to the data link connec
tor.
CAUTION: To prevent damage to scan tool MB991958,
always turn the ignition switch to the
"LOCK" (OFF) position before connecting or
disconnecting scan tool MB991958.

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

If DTC B1021 or B1022 is stored as a past trouble, carry out diagnosis with
particular emphasis on wiring and connector(s) between the A/C-ECU and the
air thermo sensor. 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 air thermo sensor. Malfunction of the A/C-ECU.
DIAGNOSIS REQUIRED SPECIAL TOOL:

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 connector.
2. Turn the ignition switch to "ON" position.
3. Dia
gnose the CAN bus line.

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

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
Q: Is the check result satisfactory?

YES:
Go to Step 2.
NO:
Repair the CAN bus lines (Refer to
CAN BUS DIAGNOSTICS
TABLE
).
Then go to Step 7 .
STEP 2. Recheck for diagnostic trouble code.

Recheck if the DTC is set.
1. Erase the DTC.
2. Turn the ignition switch to "ON" position.
3. Check if the DTC is set.
Q: Is the check result satisfactory?

YES:
It can be assumed that this malfunction is intermittent.
Refer to
HOW TO USE TROUBLESHOOTING/ INSPECTION
SERVICE POINTS
.
NO:
Go to Step 3.
STEP 3. Using scan tool MB991958, check data list item 03: air thermo
sensor.

1. Connect scan tool MB991958 to the data link connec
tor.
CAUTION: To prevent damage to scan tool MB991958,
always turn the ignition switch to the
"LOCK" (OFF) position before connecting or
disconnecting scan tool MB991958.

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