Page 2575 of 3870
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
Page 2596 of 3870

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
Page 2599 of 3870
MB991827: MUT-III USB Cable MB991910: MUT-III Main Harness A (Vehicles with CAN
communication system)
STEP 1. Check the battery voltage.
Measure the battery voltage during cranking.
Q: Is the voltage 8 volts or more?
YES: Go to Step 2.
NO: Check the condition of the battery. Refer to BATTERY
.
STEP 2. 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
Page 2601 of 3870
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
Page 2614 of 3870
YES: Go to Step 5.
NO: Repair the wiring harness. Check to see that all meters operate.
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 "OFF" (LOCK) 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
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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
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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
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Fig. 106: Displaying "Progress"
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
10. The number of keys currently registered will be displayed. To register an
additional key, replace the ignition key with the next key to be registered
within five seconds. Key ID registration screen will be displayed, then register
another key.
11. This completes the registration operation. Turn the ignition switch
"LOCK" (OFF) and leave it off for approximately ten seconds.
12. Check that the engine can be started with each of the ignition keys.
13. Check that the immobilizer s
ystem DTC and MFI s
ystem DTC did not set.
NOTE: A maximum of eight different keys can be registered.
2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Ignition Switch - Endeavor