2004 MITSUBISHI ENDEAVOR ECU

Fig. 86: Checking Connector C
-102

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Are immobilizer-ECU connector C-39 and combination meter
connector C-102 in good condition?
YES: Go to Step 4.
NO: Repair or replace the component(s). Confirm that scan tool MB99
1958 communicates normally.
STEP 4. Check the wiring harness between combination meter connector
C-102 (terminal 19) and immobilizer-ECU connector C-39 (terminal 5).
Fig. 87: Checking Connector C
-39
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2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Ignition Switch - Endeavor

Fig. 88: Checking Wiring Harness Between Combination Meter Connector C
-102

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Is the wiring harness between combination meter connector C-102
(terminal 19) and immobilizer-ECU connector C-39 (terminal 5) in good
condition?
YES: Go to Step 5.
NO: Repair the wiring harness. Confirm the immobilizer indicator light
illuminate normally.
STEP 5. Measure the voltage at combination meter connector C-102 in
order to check the battery circuit of power supply system to the
combination meter.
1. Turn the ignition switch to the "LOCK" (OFF) position.
2. Disconnect combination meter connector C-102, and measure at the
wirin
g harness side.

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

Q: Is the wiring harness between combination meter connector C-102
(terminal 1) and the battery in good condition?
YES: Go to Step 8.
NO: Repair the wiring harness. Check to see that all meters operate.
STEP 8. Retest the system.
Q: Is the malfunction eliminated?
YES: The procedure is complete. (If no malfunctions are found in all
steps, an intermittent malfunction is suspected. Refer to HOW TO USE
TROUBLESHOOTING/ INSPECTION SERVICE POINT
).
NO: Replace the combination meter.
DATA LIST REFERENCE TABLE Fig. 94: Data List Reference Table

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CHECK AT IMMOBILIZER-ECU < UP TO DECEMBER 2003 > TERMINAL VOLTAGE CHEC
K

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

Fig. 95: Terminal Voltage Check Table < Up To December 2003 >

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
CHECK AT IMMOBILIZER-ECU < FROM TO JANUARY 2004 > TERMINAL VOLTAGE CHECK Fig. 96: Terminal Voltage Check Table < From To January 2004 >

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
SPECIAL TOOLS
2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Ignition Switch - Endeavor

Fig. 98: Special Tool Table (2 Of 2)

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
ON-VEHICLE SERVICE HOW TO REGISTER ENCRYPTED CODE Required Special Tools:
MB991 958: Scan Tool (MUT-III Sub Assembly)
MB991 824: Vehicle Communication Interface (V.C.I.) MB991 827: MUT-III USB Cable MB991 910: MUT-III Main Harness A (Vehicles with CAN
communication system)
If the ignition key, immobilizer-ECU, PCM is replaced encrypted codes of all the
ignition keys must be registered. (A maximum of eight different ignition key can be CAUTION: Because registering the encrypted codes is done
after all previously-registered codes have been
erased, you should keep all of the ignition keys that
have already been registered accessible.

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

registered). Moreover, when the immobilizer-ECU has been replaced, you will need
to use scan tool MB991958 to register the immobilizer-ECU and input the vehicle
secret code.
If an attempt is made to start the engine with an unregistered ignition key, cranking
occurs, but fuel supply is cut off to disable the engine. In approx. 10 seconds, the
immobilizer indicator will blink for approx. 30 seconds.
Fig. 99: Identifying Immobilizer Indicator Light

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POINTS TO NOTE DURING OPERATION NOTE: PCM has an encrypted code for immobilizer-ECU, and the
encrypted code is registered in the immobilizer-ECU and
ignition key.
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

Fig. 111: Identifying Immobilizer Indicator Light

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
6. Insert the third ignition key, and turn it to the ON position.
7. The immobilizer-ECU identifies the new key to accept or reject it, and operates
the immobilizer indicator (See the table below).
Fig. 112: Immobilizer Indicator Table

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