reset MITSUBISHI ENDEAVOR 2004 Service User Guide

Check if a DTC, which relates to CAN communication-linked systems below,
is set.
ETACS-ECU
DTC indicating a time-out error of middle-grade multi-center display unit
1. Turn the ignition switch to the "ON" position.
2. Check for a DTC related to the relevant system.
3. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the check result satisfactory?

YES:
Go to Step 4.
NO:
Go to Step 5 .
STEP 4. Recheck for diagnostic trouble code.

Check again if the DTC is set.
1. Turn the ignition switch to the "ON" position.
2. Check if the DTC is set.
3. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the check result satisfactory?

YES:
A poor connection, open circuit or other intermittent malfunction is
present in the CAN bus lines between the middle-grade multi-center
display unit and the A/C-ECU (Refer to
HOW TO USE
TROUBLESHOOTING/ INSPECTION SERVICE POINTS
).
NO:
Replace the A/C-ECU. On completion, check that the DTC is not
reset.

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

STEP 5. Recheck for diagnostic trouble code.

Check again if the DTC is set.
1. Turn the ignition switch to the "ON" position.
2. Check if the DTC is set.
3. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the check result satisfactory?

YES:
A poor connection, open circuit or other intermittent malfunction is
present in the CAN bus lines between the middle-grade multi-center
display unit and the A/C-ECU (Refer to
HOW TO USE
TROUBLESHOOTING/ INSPECTION SERVICE POINTS
).
NO:
Replace the middle-grade multi-center display unit. On completion,
check that the DTC is not reset.

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

Check again if the DTC is set.
1. Turn the ignition switch to the "ON" position.
2. Check if the DTC is set.
3. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the check result satisfactory?

YES:
There is an intermittent malfunction such as poor engaged connector
(s) or open circuit (Refer to
HOW TO USE TROUBLESHOOTING/
INSPECTION SERVICE POINTS
).
NO:
Replace the powertrain control module. On completion, check that
the DTC is not reset.
STEP 5. Recheck for diagnostic trouble code.


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

Check again if the DTC is set.
1. Turn the ignition switch to the "ON" position.
2. Check if the DTC is set.
3. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the check result satisfactory?

YES:
A poor connection, open circuit or other intermittent malfunction is
present in the lines between the powertrain control module and the A/C-
ECU (Refer to
HOW TO USE TROUBLESHOOTING/ INSPECTION
SERVICE POINTS
).
NO:
Replace the A/C-ECU. On completion, check that the DTC is not
reset.
SYMPTOM CHART
CAUTION: During diagnosis, a DTC code associated with other
system may be set when the ignition switch is turned
on with connector(s) disconnected. On completion,
confirm all systems for DTC code(s). If DTC code(s)
are set, erase them all.

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

components may be defective. If the immobilizer system has immobilized the
engine, MFI system DTC P0513 will be output. In this case, observe the
immobilizer system troubleshooting. INTRODUCTION TO IMMOBILIZER SYSTEM DIAGNOSIS < FROM TO JANUARY 2004 > The immobilizer system consists of the immobilizer-ECU, PCM, ignition key and
ignition key ring antenna. If the engine cannot be started by using a registered
ignition key, one of these components may be defective. If the immobilizer system
has immobilized the engine, MFI system DTC P0513 will be output. In this case,
observe the immobilizer system troubleshooting. IMMOBILIZER SYSTEM DIAGNOSTIC TROUBLESHOOTING STRATEGY Use the following steps to plan your diagnostic strategy.
1. Gather information about the problem from the customer.
2. Verify that the condition as described by the customer exists.
3. Check the vehicle for any immobilizer system DTCs.
4. If you cannot verify the condition and there are no immobilizer system DTCs,
the malfunction is intermittent. Refer to HOW TO COPE WITH
INTERMITTENT MALFUNCTIONS
.
5. If you can verify the condition but there are no immobilizer system DTCs, or
the system cannot communicate with scan tool MB991958, refer to
SYMPTOM CHART AND FIND THE FAULT
.
6. If there is an immobilizer system DTC, record the DTC, then erase it from the
memory using scan tool MB991958.
7. Recreate the immobilizer system DTC set conditions to see if the same
immobilizer system DTC will resets.
1. If the same immobilizer system DTC resets, perform the appropriate
diagnostic procedure. Refer to DIAGNOSTIC TROUBLE CODE
CHART
.
2. If the same immobilizer s
ystem DTC does not reset
, the malfunction is
CAUTION: The encrypted code should always be re-registered
when replacing the immobilizer-ECU.

2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Ignition Switch - Endeavor

Fig. 22: Identifying Connectors

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
CIRCUIT OPERATION The Immobilizer-ECU is energized by the MFI relay when the ignition switch is
turned "ON". The PCM transmits a signal from scan tool MB991958 to the
immobilizer-ECU as it is. In the same way, a signal from the immobilizer-ECU is
also transmitted to scan tool MB991958 as it is. TECHNICAL DESCRIPTION (COMMENT)
This malfunction may be caused by a defective immobilizer-ECU, PCM, or a
defect in the communication line between the immobilizer-ECU and PCM. If
this malfunction appears when the MFI system and scan tool MB991958 can
communicate each other, MFI system DTC P0513 will reset. If the MFI system is normal, the MFI relay can be determined as normal. In
addition, if the MFI system and scan tool MB991958 can communicate each
other, the circuits between the data link connecto
r and the PCM can determined

2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Ignition Switch - Endeavor

Fig. 43: Identifying Connectors

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
CIRCUIT OPERATION The Immobilizer-ECU is energized by the MFI relay when the ignition switch is
turned "ON". The PCM transmits a signal from scan tool MB991958 to the
immobilizer-ECU as it is. In the same way, a signal from the immobilizer-ECU is
also transmitted to scan tool MB991958 as it is. TECHNICAL DESCRIPTION (COMMENT)
This malfunction may be caused by a defective immobilizer-ECU, PCM, or a
defect in the communication line between the immobilizer-ECU and PCM. If
this malfunction appears when the MFI system and scan tool MB991958 can
communicate each other, MFI system DTC P0513 will reset. If the MFI system is normal, the MFI relay can be determined as normal. In
addition, if the MFI system and scan tool MB991958 can communicate each
other, the circuits between the data link connector and the PCM can determined
as normal.

2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Ignition Switch - Endeavor

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
2. Turn the ignition switch "ON" position.
3. Read the immobilizer system diagnostic trouble code.
Q: Does DTC11 reset?
YES: Refer to DIAGNOSTIC TROUBLE CODE CHART
.
NO: Replace the ignition key that cannot be registered. Then go to Step 2.
STEP 2. Retest the system.
Register the ignition key.
Q: Does registered ignition key function properly?
YES: The procedure is complete.
NO: Replace the immobilizer-ECU.
INSPECTION PROCEDURE 3: ENGINE CRANKS, BUT DOES NOT START TECHNICAL DESCRIPTION If the engine cranks, but does not start, an MFI system problem may exist in
addition to a malfunctioning immobilizer system. The engine will not start if the
ignition key has not been properly registered. TROUBLESHOOTING HINTS
Malfunction of MFI system Malfunction of immobilizer-ECU
DIAGNOSIS Required Special Tools:
MB991223: Harness Set MB991958: Scan Tool (MUT-III Sub Assembly)
MB991824: Vehicle Communication Interface
(V.C.I.
)

2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Ignition Switch - Endeavor

When you check if an TCL/ASC DTC will be displayed again after the DTC has
been erased, you should duplicate the TCL/ASC DTC set conditions. Depending on
the detection timing and set conditions for the specific TCL/ASC DTC, you must
either drive the vehicle or turn the engine off and restart it. To set the proper
conditions for that DTC again, refer to "TCL/ASC DTC SET CONDITIONS
" for
each TCL/ASC DTC that you are trying to reset.
TCL/ASC DIAGNOSTIC TROUBLESHOOTING STRATEGY Use these steps to plan your diagnostic strategy. If you follow them carefully, you
will be sure that you have exhausted most of the possible ways to find an TCL/ASC
fault.
1. Gather information about the problem from the customer.
2. Verify that the condition described by the customer exists.
3. Check the vehicle for any TCL/ASC DTC.
4. If you cannot verify the condition and there are no TCL/ASC DTCs, the
malfunction is intermittent. Refer to HOW TO COPE WITH
INTERMITTENT MALFUNCTIONS
.
5. If you can verify the condition but there are no TCL/ASC DTCs, or the system
cannot communicate with the scan tool, check that the basic brake system is
operating properly.
If the basic brake system is not operating properly, refer to the BASIC BRAKE SYSTEM DIAGNOSIS
, .
If the basic brake system is operating properly, refer to SYMPTOM CHART
.
6. If there is an TCL/ASC DTC, record the number of the DTC, then erase the
DTC from the memory using the scan tool.
7. Duplicate the TCL/ASC DTC set conditions to see if the same TCL/ASC DTC
will set again.
If the same TCL/ASC DTC sets again or the TCL/ASC DTC cannot be
erased, perform the diagnostic procedures for the DTC. Refer to
DIAGNOSTIC TROUBLE CODE CHART
.
If you cannot
get the same TCL/ASC DTC to set a
gain, the malfunction is

2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor

When DTC code C1210 is set: Rear right ABS sensor When DTC code C1215 is set: Rear left ABS sensor
Q: Is the ABS sensor damaged?
YES: Replace the ABS sensor. Then go to Step 17.
NO: It can be assumed that this malfunction is intermittent. Refer to
HOW TO COPE WITH INTERMITTENT MALFUNCTIONS
.
STEP 16. Recheck for diagnostic trouble code.
Check again if the DTC is set.
1. Turn the ignition switch to the "ON" position.
2. Erase the DTC.
3. Turn the ignition switch to the "LOCK" (OFF) position.
4. Turn the ignition switch to the "ON" position.
5. Check if the DTC is reset.

2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor