Mitsubishi Evolution X. Manual — part 914
IGNITION SWITCH
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CHASSIS ELECTRICAL
54A-17
STEP 2. Using scan tool MB991958, check data list.
Use the ETACS-ECU data list to check the signals related to
the ignition key cylinder illumination light function.
• Turn the ignition switch to the "LOCK" (OFF) position.
• Remove the ignition key from the ignition key cylinder.
• Open the driver's door.
Q: Does scan tool MB991958 display the items "Dr door
unlock", "Dr door ajar switch", and "Handle lock
switch" as normal condition?
YES <Normal conditions are displayed for all the
items.> : Go to Step 3.
NO <Normal condition is not displayed for item No.
228.> : Troubleshoot the ETACS-ECU. Refer to GROUP
54A, Diagnosis - Inspection Procedure 4
"ETACS-ECU does not receive any signal from the
front door lock actuator"
.
NO <Normal condition is not displayed for item No.
254.> : Troubleshoot the ETACS-ECU. Refer to GROUP
54A, Diagnosis - Inspection Procedure 2
"ETACS-ECU does not receive any signal from the
ignition switch (IG1)"
.
NO <Normal condition is not displayed for item No.
256.> : Troubleshoot the ETACS-ECU. Refer to GROUP
54A, Diagnosis - Inspection Procedure 6
"ETACS-ECU does not receive any signal from the
front the front door switch (RH)"
.
NO <Normal condition is not displayed for item No.
264.> : Troubleshoot the ETACS-ECU. Refer to GROUP
54A, Diagnosis - Inspection Procedure 3
"ETACS-ECU does not receive any signal from key
reminder switch"
.
NO <Normal condition is not displayed for item No. 270,
271.> : Troubleshoot the ETACS-ECU. Refer to GROUP
54A, Diagnosis - Inspection Procedure 4
"ETACS-ECU does not receive any signal from front
door lock actuator"
Item No.
Item name
Normal conditions
Item 228
Dr door unlock
ON
Item 254
IG voltage
0 V
Item 256
Dr door ajar switch
Open
Item 264
Handle lock switch
Key in
→ Key out
Item 270
Dr door lock switch
Not lock
Item 271
Dr door unlock switch
Unlock
IGNITION SWITCH
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CHASSIS ELECTRICAL
54A-18
STEP 3. Check key reminder switch connector C-211,
ETACS-ECU connector C-315 for loose, corroded or
damaged terminals, or terminals pushed back in the
connector.
Q: Is key reminder switch connector C-211, ETACS-ECU
connector C-315 in good condition?
YES : Go to Step 4.
NO : Repair the damaged parts.
STEP 4.Check the wiring harness between key reminder
switch connector C-211 (terminal No. 3,5) and ETACS-ECU
connector C-315 (terminal No. 13,18).
• Check the input/output line for open circuit.
Q: Is the check result normal?
YES : Go to Step 5.
NO : Repair the wiring harness between key reminder
switch connector C-211 and ETACS-ECU connector
C-315.
STEP 5. Check of ignition key cylinder illumination light
bulb.
Q: Is the ignition key cylinder illumination light bulb in
good condition?
YES : Go to Step 6.
NO : Replace the bulb of the ignition key cylinder
illumination light.
STEP 6. Check the wiring harness between key reminder
switch connector C-211 (terminal No. 7) and body ground.
• Check the ground line for open circuit.
Q: Is the check result normal?
YES : Go to Step 7.
NO : Repair the wiring harness between key reminder
switch connector C-211 and body ground.
STEP 7. Retest the system.
Q: Does the ignition key cylinder illumination light
illuminate/extinguish in good condition?
YES : The trouble can be an intermittent malfunction (Refer
to GROUP 00, How to use
Troubleshooting/inspection Service Points
− How to
Cope with Intermittent Malfunction
NO : Replace the ETACS-ECU.
IGNITION SWITCH
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CHASSIS ELECTRICAL
54A-19
ON-VEHICLE SERVICE
CHECK OF IGNITION KEY REMINDER WARNING
FUNCTION (STEERING LOCK REMINDER
BUZZER BY KOS)
M1541200700085
1. Driver's door: Release the closed and steering wheel lock,
or turn the ignition key <vehicles with WCM> or emergency
key <vehicles with KOS> to the LOCK (OFF) position (key
inserted).
2. Change the driver's door state from closed to open.
3. Check that the buzzer sounds normally.
4. If a malfunction is found, carry out the troubleshooting
(Refer to
).
REMOVAL AND INSTALLATION
M1541200300399
CAUTION
Before removing the steering wheel assembly, refer to GROUP 52B
− Service Precautions
and Driver’s Air Bag Module and Clock Spring
<Vehicles with WCM>.
IGNITION SWITCH
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CHASSIS ELECTRICAL
54A-20
CAUTION
After the installation, perform a calibration for the ASC-ECU to learn the steering wheel sensor neutral
point (Refer to GROUP 35C, On-vehicle Service
− Steering Wheel Sensor Calibration
).
<Vehicles with WCM and ASC>
Pre-removal Operation
• Steering wheel straight-ahead position check. <Vehicles
with WCM>
• Removal of steering wheel assembly (Refer to GROUP
37
− Steering Wheel
). <Vehicles with WCM>
Post-installation Operation
• Installation of steering wheel assembly (Refer to GROUP
37
− Steering Wheel
). <Vehicles with WCM>
• Steering wheel straight-ahead position check. <Vehicles
with WCM>
AC708361
AC706806
AC708246
4
3
4
3
4
3
3
7
7
2
4
4
5
6
10
5
AC
1
6
3
2
9
8
B
B
C
C
A
A
B
B
C
C
A
A
Section A-A
Section C-C
Section B-B
NOTE:
Claw position is symmetrical
<Vehicles with KOS>
<Vehicles without KOS>
Claw
Claw
Claw
2.0 ± 0.5 N·m
18 ± 4 in-lb
2.0 ± 0.5 N·m
18 ± 4 in-lb
2.0 ± 0.5 N·m
18 ± 4 in-lb
7.0 ± 3.0 N·m
62 ± 27 in-lb
Removal Steps
1.
IG knob cap <Vehicles with KOS>
2.
Ignition key cover
3.
Steering column cover lower
4.
Steering column cover upper
Removal Steps (Continued)
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