2004 MITSUBISHI ENDEAVOR engine

Fig. 303: Adjusting Air Gap

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

INSPECTION COOLING TEMPERATURE SWITCH 1. Dip the metal part of the cooling temperature switch into engine oil and
increase the oil temperature using a gas burner or similar.
CAUTION: Do not heat more than necessary.

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

REMOVAL SERVICE POINTS << A >> RESERVE TANK ASSEMBLY REMOVAL Position the reserve tank assembly out of the way. The reserve tank assembly
cannot be removed completely from the engine compartment. Fig. 308: Identifying Reserve Tank Assembly And Air Cleaner Body

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

<< B >> FLEXIBLE SUCTION HOSE AND LIQUID PIPE A DISCONNECTION NOTE: For removal and installation of the condenser fan motor,
refer to REMOVAL AND INSTALLATION
.
CAUTION: As the compressor oil and receiver are highly
moisture absorbent, use a non-porous material to

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

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
Q: Is the check result satisfactory?

YES:
Go to Step 2.
NO:
Repair the CAN bus lines (Refer to
CAN COMMUNICATION
SIGNAL TABLE
). Then go to Step 7 .
STEP 2. Recheck for diagnostic trouble code.

Recheck if the DTC is set.
1. Erase the DTC.
2. Turn the ignition switch to "ON" position.
3. Check if the DTC is set.
Q: Is the check result satisfactory?

YES:
It can be assumed that this malfunction is intermittent. Refer to
HOW TO USE TROUBLESHOOTING/INSPECTION SERVICE POINTS
.
NO:
Go to Step 3.
STEP 3. Using scan tool MB991958, check data list item 01: interior
temperature sensor.

1. Connect scan tool MB991958 to the data link connector.
2. Start the engine.
3. Check the data list.
Item 01: Interior temperature sensor.
Check that the ambient tem
perature matches the dis
played value on
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 HVAC Automatic Air Conditioning - Endeavor

2004 BODY & ACCESSORIES
Ignition Switch - Endeavor
IGNITION SWITCH GENERAL DESCRIPTION < UP TO DECEMBER 2003 > IGNITION KEY REMINDER TONE ALARM The ignition key reminder tone alarm will sound under the following condition, and
warn the driver to remove the ignition key.
The driver's door is opened when the ignition switch is at "LOCK" (OFF) or
"ACC" position without removing the ignition key.
However, the light reminder tone alarm will take precedence over this function.
DOOR LOCK PREVENTION FUNCTION If the key is left in the ignition switch while the driver's door opened or the assistant
door opened, all door are automatically unlock to prevent locking the ignition key
in the vehicle after door is locked. IMMOBILIZER SYSTEM The immobilizer system consists of the ignition key, the immobilizer-ECU with key
ring antenna, and the PCM. The ignition key has a built-in transponder. Only the
registered ignition key permits the engine to start, therefore, the engine can never be
started by means of a forged key or by connecting the ignition wiring directly. The
system is significantly safe and reliable against theft. In addition, the driver has only
to turn the ignition switch to the "ON" position to activate the immobilizer system.
If the requirements for starting the engine are not satisfied, the engine will be
immobilized. If a registered ignition key is lost, all your ignition keys need to be
registered again using scan tool MB991958 (MUT-III Sub Assembly) to ensure
security (Refer to ON
-VEHICLE SERVICE
). An additional ignition key can be
registered as follows (only if no ignition keys are lost):
Using scan tool MB991958 (MUT-III Sub Assembly) (Refer to ON
-
VEHICLE SERVICE
).

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


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

By operating two ignition keys that have been already registered (Refer to ON
-
VEHICLE SERVICE
).
OPERATION 1. When the ignition switch is turned to "ON" position, the PCM sends a
requirement for the encrypted code to the immobilizer-ECU (at this time, the
engine is remobilized).
2. When the immobilizer-ECU receives the requirement from the PCM, the
immobilizer-ECU supplies power to the transponder inside the ignition key via
the antenna. The energized transponder sends the encrypted code back to the
immobilizer-ECU via the antenna.
3. The immobilizer-ECU judges the encrypted code with its code logic in itself. If
they are identical, the immobilizer-ECU sends the encrypted code to the PCM.
4. If the PCM can not receive the encrypted code, the engine will be immobilized.
Fig. 1: Identifying PCM Operating Diagram

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
CAUTION WHEN REPLACING IMMOBILIZER SYSTEM RELATED PARTS To replace immobilizer system related parts, refer to the table below. When the
ignition key is re-registered with scan tool MB991958, the originally registered
ignition key registration information will be lost.
2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Ignition Switch - Endeavor

means of a forged key or by connecting the ignition wiring directly. The system is
significantly safe and reliable against theft. In addition, the driver has only to turn
the ignition switch to the "ON" position to activate the immobilizer system. If the
requirements for starting the engine are not satisfied, the engine will be
immobilized. If a registered ignition key is lost, all your ignition keys need to be
registered again using scan tool MB991958 (MUT-III Sub Assembly) to ensure
security (Refer to ON
-VEHICLE SERVICE
). An additional ignition key can be
registered as follows (only if no ignition keys are lost):
Using scan tool MB991958 (MUT-III Sub Assembly) (Refer to ON
-
VEHICLE SERVICE
).
By operating two ignition keys that have been already registered (Refer toON
-
VEHICLE SERVICE
).
OPERATION 1. When the ignition switch is turned to "ON" position, the PCM sends a
requirement for the encrypted code to the immobilizer-ECU (at this time, the
engine is remobilized).
2. When the immobilizer-ECU receives the requirement from the PCM, the
immobilizer-ECU supplies power to the transponder inside the ignition key via
the antenna. The energized transponder sends the encrypted code back to the
immobilizer-ECU via the antenna.
3. The immobilizer-ECU judges the encrypted code with its code logic in itself. If
they are identical, the immobilizer-ECU sends the encrypted code to the PCM.
4. If the PCM can not receive the encrypted code, the engine will be immobilized.
Fig. 3: Identifying Immobilizer System Operation Diagram
2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Ignition Switch - Endeavor

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
CAUTION WHEN REPLACING IMMOBILIZER SYSTEM RELATED PARTS To replace immobilizer system related parts, refer to the table below. When the
ignition key is re-registered with scan tool MB991958, the originally registered
ignition key registration information will be lost.
Fig. 4: Identifying PCM Table

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
IGNITION KEY REMINDER TONE ALARM AND DOOR LOCK PREVENTION FUNCTION
DIAGNOSIS The Ignition key reminder tone alarms and door lock prevention function are
controlled by the Simplified Wiring System (SWS). For troubleshooting, refer to
SIMPLIFIED WIRING SYSTEM (SWS)
- ENDEAVOR
.
IMMOBILIZER SYSTEM DIAGNOSIS INTRODUCTION TO IMMOBILIZER SYSTEM DIAGNOSIS < UP TO DECEMBER 2003 > The immobilizer system consists of the immobilizer-ECU, PCM and ignition key. I
f
the engine cannot be sta
rted
by using a registe
red ignition k
ey,
one of these

CAUTION: The encrypted code should always be re-registered
when replacing the immobilizer-ECU.

2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Ignition Switch - 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