2004 MITSUBISHI ENDEAVOR diagnosis

TROUBLESHOOTING HINTS
Malfunction of the immobilizer-ECU Malfunction of the PCM The wiring harness or connectors may have loose, corroded, or damaged
terminals, or terminals pushed back in the connector.
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 toll MB991958, read the MFI system diagnostic
trouble code.
Use scan tool MB991958 to confirm the MFI system DTC.
1. Connect scan tool MB991958 to the data link connec
tor.
NOTE: If this malfunction appears, MFI system DTC P0513 will
be output.
CAUTION: To prevent damage to scan tool MB991958,
always turn the ignition switch to "LOCK" (OFF)
position before connecting or disconnecting
scan tool MB991958.

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

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
2. Turn the ignition switch "ON" to position.
3. Read the MFI system diagnosis code.
Q: Is an MFI system DTC P0513 output?
YES: Refer to DIAGNOSTIC TROUBLE CODE CHART
.
NO: Go to Step 2.
STEP 2. Check the immobilizer-ECU power supply circuit by
backprobing.
1. Do not disconnect immobilize
r-ECU connector C-39.
NOTE: If the scan tool MB991958 cannot communicate with
the MFI system, refer to SYMPTOM PROCEDURES
.

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

YES: Register the password (secret code) and encrypted code ON
-
VEHICLE SERVICE
.
NO: Replace the PCM. Then register the password (secret code) and
encrypted code (Refer to ON
-VEHICLE SERVICE
).
INSPECTION PROCEDURE 2: THE IGNITION KEY CANNOT BE REGISTERED TECHNICAL DESCRIPTION (COMMENT) The ignition key transponder or the immobilizer-ECU is suspected to be defective. TROUBLESHOOTING HINTS
Malfunction of the ignition key Malfunction of immobilizer-ECU
DIAGNOSIS Required Special Tools:
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, read the diagnostic trouble code.
Use scan tool MB991958 to check if DTC 11 is set.
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 "LOCK" (OFF)
position before connecting or disconnecting
scan tool MB991958.

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

2. Turn the ignition switch "ON" position.
3. Read the diagnosis code.
Q: Have any DTCs set?
YES: Refer to DIAGNOSTIC TROUBLE CODE CHART
.
NO: Go to Step 3.
STEP 3. Using scan tool MB991958, read the diagnostic trouble code.
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 "LOCK" (OFF)
position before connecting or disconnecting
scan tool MB991958.

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 diagnosis code.
Q: Have any MFI system DTCs set?
YES: Refer to DIAGNOSTIC TROUBLE CODE CHART
.
NO: Go to Step 4.
STEP 4. Attempt to start the engine.
Q: Does the engine start?
YES: The procedure is complete (If no malfunctions are found in all steps,
an intermittent malfunction is suspected. Refer to HOW TO COPE
WITH INTERMITTENT MALFUNCTIONS
).
NO: Refer to SYMPTOM CHART
. If the malfunction is not resolved,
replace the immobilizer-ECU. Then register the password (secret code)
and encrypted code. (Refer to ON
-VEHICLE SERVICE
.) The engine
should now start.
INSPECTION PROCEDURE 4: THE IMMOBILIZER INDICATOR LIGHT DOES NOT ILLUMINATE. < UP TO
DECEMBER 2003
>

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

TECHNICAL DESCRIPTION (COMMENT
)
The immobilizer indicator light or a malfunction of the combination meter or
immobilizer-ECU. TROUBLESHOOTING HINTS
Malfunction of combination meter Malfunction of immobilizer-ECU The wiring harness or connectors may have loose, corroded, or damaged
terminal, or terminals pushed back in the connector.
DIAGNOSIS Required Special Tool:
MB991223: Harness Set
STEP 1. Check immobilizer-ECU connector C-39 for loose, corroded or
damaged terminals, or terminals pushed back in the connector

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

If none of the functions can be used, check the diagnostic trouble codes, and after
carrying out any necessary repairs, repeat the operation. If an incorrect password is
input five times in a row, the immobilizer-ECU judges that an unauthorized
operation is being attempted. Start-prevention mode will be set, and engine
operation will stop and all special functions will be disabled. If the ignition switch
is turned to "ON" position and left in that position for approximately 16 minutes,
"Unauthorized operation, start- prevention mode" will be cancelled. KEY ID REGISTRATION All ignition keys can be registered with scan tool MB991958. Additional ignition
keys can be registered with or without scan tool MB991958. REGISTRATION WITH THE SCAN TOOL 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 "LOCK" (OFF) position
before connecting or disconnecting scan tool
MB991958.
NOTE:
Before registration, check that no DTC code is set. If a
DTC code is set, resolve the problem beforehand. Using the key ID register function will cause all key IDs
that have been previously registered in the immobilizer-
ECU to be erased. All ke
ys need to be re
gistered. Those
which have been registered before should be on hand
before using this function.
If registering more than one key, do not disconnect
scan tool MB991958 halfway through the registration
process. After registering key IDs, check that the engine can be
started using all of the keys that have been registered.
If the engine will not start, refer to IMMOBILIZER SYSTEM DIAGNOSIS
.

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