Mitsubishi Evolution X. Manual — part 1088
DEFOGGER
TSB Revision
CHASSIS ELECTRICAL
54A-713
DEFOGGER
GENERAL INFORMATION
M1540500000017
The rear window defogger has been established to
the rear window glass. To prevent battery discharge,
A/C-ECU controls the rear window defogger to be
automatically turned off 20 minutes after the rear
window defogger switch is turned ON. (Only when
engine is running)
SPECIAL TOOLS
M1547000600264
AC608069
AC608068
AC708613
<Vehicles for USA>
Rear window defogger switch
<Vehicles for CANADA>
Rear window
defogger switch
AC
Tool
Tool number and
name
Supersession
Application
MB991223
a. MB991219
b. MB991220
c. MB991221
d. MB991222
Harness set
a. Check harness
b. LED harness
c. LED harness
adapter
d. Probe
General service tool
(jumper)
Continuity check and voltage
measurement at harness wire or
connector
a. For checking connector pin
contact pressure
b. For checking power supply
circuit
c. For checking power supply
circuit
d. For connecting a locally
sourced tester
MB991223
a
d
c
b
DO NOT USE
BA
DEFOGGER
TSB Revision
CHASSIS ELECTRICAL
54A-714
TROUBLESHOOTING
STANDARD FLOW OF DIAGNOSTIC TROUBLESHOOTING
M1540500700016
Refer to GROUP 00
− Contents of troubleshooting
.
SYMPTOM CHART
M1540500800013
CAUTION
During diagnosis, a DTC code associated with
other system may be set when the ignition switch
is turned on with connector(s) disconnected. On
completion, confirm all systems for DTC code(s).
If DTC code(s) are set, erase them all.
MB992006
Extra fine probe
−
Continuity check and voltage
measurement at harness wire or
connector
Tool
Tool number and
name
Supersession
Application
MB992006
Symptom
Reference
page
Rear window defogger does not operate.
DEFOGGER
TSB Revision
CHASSIS ELECTRICAL
54A-715
SYMPTOM PROCEDURES
Rear window defogger does not operate.
Rear Window Defogger Circuit
REAR
WINDOW
DEFOGGER
RELAY
JOINT
CONNECTOR (2)
RELAY BOX
REAR WINDOW
DEFOGGER
FUSIBLE
LINK
37
ETACS-ECU
REAR
WINDOW
DEFOGGER
SWITCH
INTERFACE
CIRCUIT
POWER
SOURCE
CPU
A/C
CONTROL
PANEL
PASSENGER
COMPARTMENT
DEFOGGER
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CHASSIS ELECTRICAL
54A-716
.
A/C Control Panel Circuit
A/C-ECU
A/C
CONTROL
PANEL
CPU
INTERFACE
CIRCUIT
AC506471
AC708951AJ
Connectors: C-22, C-123
C-123
C-22 (B)
AC708950BN
C-42
Connectors: C-42, C-102, C-132
C-132
C-102 (B)
AC708972BE
Connectors: C-301, C-306
ETACS-ECU
C-301
C-306
AC708955AD
Connector: D-16
AC708970AQ
Connectors: F-03, F-29
F-03 (B)
F-29 (B)
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