Mitsubishi MOTORS Lancer 2004, Workshop Manual

Page: 296 / 638

IGNITION SWITCH
CHASSIS ELECTRICAL
54A-18
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 PROCEDURE
STEP 1. MUT-II/III diagnosis code.
Q: Does diagnosis code No.11 reset?
YES :
Refer to P.54A-9 .
NO :
Replace the ignition key that cannot be
registered. Then re-register the encrypted
code. (Refer to
P.54A-20 ). Verify that the
ignition key can be registered, then Go to
Step 2.
STEP 2. Retest the system.
Q: Does registered ignition key function properly?
YES :
The procedure is complete. (If no
malfunctions are found in all steps, an
intermittent malfunction is suspected. Refer
to GROUP 00, How to Use
Troubleshooting/Inspection Service Points
−
How to Cope with Intermittent Malfunction
P.00-5 ).
NO :
Replace the immobilizer-ECU.
INSPECTION PROCEDURE 3: Engine does not Start (Cranking but no Initial Combustion).
TECHNICAL DESCRIPTION (COMMENT)
If the fuel injectors are not operating, there might be
a problem with the MPI system in addition to a
malfunction of the immobilizer system. It is normal for
this to occur if an attempt is made to start the engine
using a key that has not been properly registered.
TROUBLESHOOTING HINTS
•
Malfunction of MPI system
•
Malfunction of immobilizer-ECU
DIAGNOSIS PROCEDURE
STEP 1. Check the system voltage.
Measure the system voltage during cranking.
Q: Is the voltage 8 volts or more?
YES :
Go to Step 2.
NO :
Check the battery. Refer to P.54A-4 . The
engine should start.
STEP 2. Check the immobilizer system diagnosis
code and MPI system diagnosis code.
Q: Which diagnosis code resets, the immobilizer
system diagnosis code or the MPI system
diagnosis code?
Immobilizer system diagnosis code is set :
Refer
to P.54A-9 .
MPI system diagnosis code is set :
Refer to
GROUP 13A, Diagnosis P.13A-15 , GROUP
13B, Diagnosis P.13B-15 .
No diagnosis code is set :
Go to Step 3.
STEP 3. Check the starting system.
Q: Does the engine start?
YES :
Go to Step 4.
NO :
Refer to GROUP 13A, Diagnosis
−
Symptom Chart P.13A-215 , GROUP 13B,
Diagnosis
−
Symptom Chart P.13B-189 . If
the malfunction is not resolved, replace the
immobilizer-ECU. Then register the
password (secret code) and encrypted
code. (Refer to
P.54A-20 .) The engine
should start.