Mitsubishi Evolution X. Manual — part 1067
ETACS
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CHASSIS ELECTRICAL
54A-629
STEP 2. Battery check
Refer to
.
Q: Is the battery in good condition?
YES : Go to Step 3.
NO : Charge or replace the battery.
STEP 3. Charging system check
Refer to GROUP 16
− Output Current Test
.
Q: Is the charging system in good condition?
YES : Go to Step 4.
NO : Repair or replace the charging system component(s).
STEP 4. Check ETACS-ECU connector C-317 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q: Is ETACS-ECU connector C-317 in good condition?
YES : Go to Step 5.
NO : Repair or replace the component(s). Refer to GROUP
00E, Harness Connector Inspection
STEP 5. Check the ignition switch (IG1) circuit to the
ETACS-ECU. Measure the voltage at ETACS-ECU
connector C-317.
(1) Disconnect ETACS-ECU connector C-317 and measure the
voltage available at the wiring harness side of the
connector.
(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal 6 and ground.
• The voltage should measure approximately 12 volts
(battery positive voltage).
Q: Is the measured voltage approximately 12 volts (battery
positive voltage)?
YES : Go to Step 7.
NO : Go to Step 6.
STEP 6. Check the wiring harness between ETACS-ECU
connector C-317 (terminal 6) and the ignition switch (IG1).
Check the power supply line for open circuit and short circuit.
Q: Is the wiring harness between ETACS-ECU connector
C-317 (terminal 6) and the ignition switch (IG1) in good
condition?
YES : No action is necessary and testing is complete.
NO : The wiring harness may be damaged or the
connector(s) may have loose, corroded or damaged
terminals, or terminals pushed back in the connector.
Repair the wiring harness as necessary.
AC608254 BG
Harness side: C-317
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CHASSIS ELECTRICAL
54A-630
STEP 7. Recheck for diagnostic trouble .
Check again if the DTC is set to the ETACS-ECU.
(1) Erase the DTC.
(2) Turn the ignition switch from "LOCK" (OFF) position to "ON"
position.
(3) Check if DTC is set.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?
YES : Replace the ETACS-ECU.
NO : The trouble can be an intermittent malfunction (Refer
to GROUP 00, How to Cope with Intermittent
Malfunction
).
SERVICE DATA
M1545001300293
NOTE: For some information result read out by the
ECU, the specific items may not be displayed.
Item No. Display on M.U.T.-III
Check conditions
Normal conditions
1
CAN-H voltage (CAN-C)
−
2.0
−4.5 V
2
CAN-L voltage (CAN-C)
−
0.5
−3.0 V
200
Original VIN writing status
When writing status is normal
Comp/Unperformed
or Comp and locked
When writing status is abnormal ECU internal Err
201
Current VIN writing status
When writing status is normal
Comp/Unperformed
When writing status is abnormal ECU internal Err
202
Internal error
When no error is present
No error
When an error is present
EEPROM error or
Boot loader Err or
EEPROM/Boot or
ADC Error or
ADC/EEPROM error
or ADC/Boot error or
ADC/Boot/EEPROM
or PLL Error or
PLL/EEPROM error
or PLL/EEPROM
error or
PLL/Boot/EEPROM
or PLL/ADC error or
PLL/ADC/EEPROM
or PLL/ADC/Boot or
PLL/ADC/Boot/ROM
203
Process error
When no error is present
No error
When an error is present
Interrupt error or
Switch error or
Sequence error or
Stck pointer Err or
Dispatch call Er or
Other error
204
Coding counter
−
0
−255 times
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CHASSIS ELECTRICAL
54A-631
205
Coding counter Option
−
0
−255 times
206
Headlight LO ON duty
When low-beam headlights are
on
100 %
When low-beam headlights are
off
0 %
207
Fan control relay ON duty
When the fan is in operation
100 %
When the fan is stopped
0 %
208
Dome light ON duty
When the room light is turned
from ON to OFF
When the light is
dimmed from 100%
(when ON) to 0%
209
Gate light ON duty
When the trunk is opened
100 %
When the trunk is closed
0 %
210
IG key illumination
When the door is opened
100 %
When the door is closed
0 %
211
Headlight Hi
When high-beam headlights are
on
ON
When high-beam headlights are
off
OFF
212
Front fog light
When fog lights are on
ON
When fog lights are off
OFF
213
Horn theft horn
When the security alarm is
active
ON
When the security alarm is not
active
OFF
215
Security indicator
When the security alarm is
active
ON
When the security alarm is not
active
OFF
216
IG1-2 fuel pump
Ignition switch: ON position
ON
Ignition switch: Other than ON
OFF
218
Taillight
When taillights and position
lights are on
ON
When taillights and position
lights are off
OFF
219
Turn RH/LH light
When turn-signal lights are on
ON
When turn-signal lights are off
OFF
220
Blower fan
Ignition switch: ON position
ON
Ignition switch: Other than ON
OFF
221
Defogger
1. Engine: ON
2. Defogger switch: ON
ON
Other than above
OFF
Item No. Display on M.U.T.-III
Check conditions
Normal conditions
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CHASSIS ELECTRICAL
54A-632
222
Interior light cut
When the interior light is ON
ON
When the light is turned off by
the activation of interior light
automatic cut function
OFF
224
Door lock
When locking is performed by
the central door lock
ON
Other than above
OFF
227
Door unlock
When unlocking is performed by
the central door lock
ON
Other than above
OFF
228
Dr door unlock
When unlocking is performed by
the central door lock
ON
Other than above
OFF
230
Trunk/gate opener
Trunk open switch: ON
ON
Other than above
OFF
232
ACC Relay
Ignition switch: ACC or ON
ON
Ignition switch: Other than ACC
or ON
OFF
233
Fan Lo
When the fan is in Lo operation ON
When the fan is stopped
OFF
234
Fan Hi
When the fan is in Hi operation ON
When the fan is stopped
OFF
235
Front wiper ACT
When the windshield wiper is in
operation
ON
Other than above
OFF
236
Front wiper Lo/Hi
When the windshield wiper is in
high-speed operation
ON
Other than above
OFF
237
Front washer
The windshield washer is in
operation
ON
Other than above
OFF
240
Power window
Ignition switch: ON position
ON
Ignition switch: 30 seconds after
turned to the OFF position
ON
→ OFF
252
Ambient temperature sensor
Ignition switch: ON position
0
−5 V
253
Voltage sensing of IOD Line
Always
Battery positive
voltage
254
IG voltage
Ignition switch: ON position
Battery positive
voltage
256
Dr door ajar switch
Driver's door: Open
Open
Driver's door: Closed
Close
257
As door ajar switch
Front passenger's door: Open
Open
Front passenger's door: Closed Close
Item No. Display on M.U.T.-III
Check conditions
Normal conditions
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