2004 MITSUBISHI ENDEAVOR immobilizer

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.
2. Turn the ignition switch to "ON" position.
3. Select "Interactive Diagnosis" from the start-up screen.
4. Select "System select."
5. Choose "IMMOBILIZER" from the "POWER TRAIN" tab.
6. Select "Data List."
7. Choose an appropriate item and select the "OK" button.
HOW TO DIAGNOSE THE CAN BUS LINES 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)
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 BODY & ACCESSORIES Ignition Switch - Endeavor

Fig. 10: Ignition Key Ring And Immobilizer
-ECU Circuit Diagram &
Connector Identification

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
CIRCUIT OPERATION The ignition key is powered by the ignition key ring antenna. The ignition key then
sends an encrypted code. The ignition key ring antenna receives the encrypted code,
and determines if the ignition key is registered.
2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Ignition Switch - Endeavor

DTC SET CONDITION
DTC 11 may be set if other ignition keys are in the vicinity of the vehicle as it
is being started. The transponder's encrypted code is not sent to the immobilizer-ECU
immediately after the ignition switch is turned to "ON" position.
TROUBLESHOOTING HINTS
Radio interference of the encrypted code Malfunction of the transponder Malfunction of the 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
STEP 1. Check for presence of other key near the key in the ignition.
Q: Is there any other key near the key in the ignition?
YES: Move the other key well away from key being used. Retest the
system.
NO: Go to Step 2.
STEP 2. Check that the engine start using the spare ignition key which
encrypted code has been registered.
Q: Does the engine start using the spare ignition key for which the
encrypted code has been registered?
NOTE: DTC 11 is always set together with MFI system DTC P0513.
2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Ignition Switch - Endeavor

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
2. Turn the ignition switch to the "ON" position.
3. Use scan tool MB991958 to check immobilizer system diagnostic trouble
codes.
4. Turn the ignition switch to "LOCK" (OFF) position.
5. Disconnect scan tool MB991958.
Q: Which DTC is set, DTC 11 or 12?
DTC12 is set : Refer to DTC 12 DTC 12: ENCRYPTED CODES ARE
NOT THE SAME OR NOT REGISTERED
.
DTC11 is set : Replace the immobilizer-ECU. Then register the password
(secret code) and encrypted code ON
-VEHICLE SERVICE
. Retest the
system.
DTC 11: Trans
ponder Communication S
ystem or Radio Interference of Encr
ypted Code. < FROM TO JANUARY 2004
>

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

Fig. 12: Ignition Key Ring and Immobilizer
-ECU Circuit Diagram &
Connector Identification

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
CIRCUIT OPERATION The ignition key is powered by the ignition key ring antenna. The ignition key then
sends an encrypted code. The ignition key ring antenna receives the encrypted code,
and determines if the ignition key is registered. DTC SET CONDITION
DTC 11 may be output if other ignition keys are in the vicinity of the vehicle
as it is being started. The transponder's encrypted code is not sent to the immobilizer-ECU
immediately after the ignition switch is turned to "ON" position.
NOTE: DTC 11 is always output together with MFI system DTC
P0513.
2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Ignition Switch - Endeavor

TROUBLESHOOTING HINTS
Radio interference of the encrypted code Malfunction of the transponder Malfunction of the 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. Check for presence of other key near the key in the ignition.
Q: Is there any other key near the key in the ignition?
YES: Move the other key well away from key being used. Retest the
system.
NO: Go to Step 2.
STEP 2. Check that the engine start using the spare ignition key which
encrypted code has been registered.
Q: Does the engine start using the spare ignition key for which the
encrypted code has been registered?
YES: Replace the ignition key that does not work. Then register the
password (secret code) and encrypted code. Retest the system.
NO: Go to Step 3.
STEP 3. Recheck for diagnosis trouble code.
1. Connect scan tool MB991958 to the data link connec
tor.

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

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
2. Turn the ignition switch to the "ON" position.
3. Use scan tool MB991958 to check immobilizer system diagnostic trouble
codes.
4. Turn the ignition switch to "LOCK" (OFF) position.
5. Disconnect scan tool MB991958.
Q: Which DTC is output, DTC 11 or 12?
DTC12 is set : Refer to DTC 12: ENCRYPTED CODES ARE NOT
THE SAME OR NOT REGISTERED
.
DTC11 is set : Go to Step 4.
STEP 4. Check the ignition key ring antenna.
1. Disconnect the key reminder switch connector C-310.

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

STEP 5. Check Immobilizer-ECU connector C-39 and key reminder
switch connector C-310 for loose, corroded or damaged terminals, or
terminals pushed back in the connector.
Fig. 16: Checking Immobilizer
-ECU Connector C
-39
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

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