Mitsubishi Galant 9G. Manual — part 58
SYMPTOM PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-228
STEP 20. Check the wiring harness between horn relay
connector A-06X (terminal 3) and ETACS-ECU connector
C-217 (terminal 44).
NOTE: Also check intermediate connector C-29 for loose, cor-
roded, or damaged terminals, or terminals pushed back in the
connector. If intermediate connector C-29 is damaged, repair or
replace the damaged component(s) as described in GROUP
00E, Harness Connector Inspection
.
Q: Is the wiring harness between horn relay connector
A-06X (terminal 3) and ETACS-ECU connector C-217
(terminal 44) in good condition?
YES : Go to Step 21.
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. Verify that
the horn sounds normally.
AC305992
RELAY BOX SIDE
CONNECTOR: A-06X
AC
FRONT OF VEHICLE
AC305413
C-217
CONNECTOR: C-217
AE
HARNESS SIDE
JUNCTION BLOCK
(REAR VIEW)
AC305231AI
CONNECTOR: C-29
SYMPTOM PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-229
STEP 21. Check the wiring harness between horn relay
connector A-06X (terminal 4) and horn (HIGH) connector
A-39 (terminal 1).
Q: Is the wiring harness between horn relay connector
A-06X (terminal 4) and horn (HIGH) connector A-39
(terminal 1) in good condition?
YES : Replace the ETACS-ECU. Verify that the horn sounds
normally.
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. Verify that
the horn sounds normally.
AC305992
RELAY BOX SIDE
CONNECTOR: A-06X
AC
FRONT OF VEHICLE
AC305206
CONNECTOR: A-39
BE
A-39 (B)
HARNESS SIDE
SYMPTOM PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-230
INSPECTION PROCEDURE E-3: Keyless Entry System: Encrypted code cannot be registered.
.
CIRCUIT OPERATION
The ETACS-ECU operates the encrypted code regis-
ter mode according to the following signals:
• Key reminder switch
• Hazard warning light switch
.
TECHNICAL DESCRIPTION (COMMENT)
If the encrypted code register mode cannot be set,
the input circuits from the switches described in
"CIRCUIT OPERATION" or the ETACS-ECU may be
defective.
If the encrypted code register mode can be set but
the transmitter cannot be registered, the transmitter
or the ETACS-ECU may be defective.
.
TROUBLESHOOTING HINTS
• The key reminder switch may be defective
• The hazard warning light switch may be defective
• The transmitter may be defective
• The ETACS-ECU may be defective
• The wiring harness or connectors may have
loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector
DIAGNOSIS
Required Special Tools:
• MB991223: Harness Set
• MB991958: Scan Tool (MUT-III Sub Assembly)
• MB991824: Vehicle Communication Interface (V.C.I.)
• MB991827: MUT-III USB Cable
• MB991910: MUT-III Main Harness A
STEP 1. Verify trouble symptom.
Q: Can the encrypted code register mode be set?
YES : Go to Step 3.
NO : Go to Step 2.
ETACS-
ECU
· KEY REMINDER SWITCH
· HAZARD WARNING LIGHT SWITCH
Encrypted Transmitter Code Register Mode
SYMPTOM PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-231
STEP 2. Check the input signal (by using the pulse check
mode of the monitor).
Check the input signals from the following switches:
• Key reminder switch
• Hazard warning light switch
CAUTION
To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958.Refer to "How to connect
."
(2) Operate scan tool MB991958 according to the procedure
below to display "Pulse check."
a. Select "Interactive Diagnosis."
b. Select "System select."
c. Select "SWS."
d. Select "Pulse Checking."
(3) Check the switches (see table below) applicable for the
input signal check are operated.
(4) Check scan tool MB991958 sounds or not.
Q: When the key reminder switch and the hazard warning
light switch are operated, does scan tool MB991958
sound in each case?
Buzzer of scan tool MB991958 sounds normally. :
Replace the ETACS-ECU. Verify that the encrypted
code can be registered in the transmitter.
Scan tool MB991958 does not sound when the ignition
key is removed and reinserted : Refer to Inspection
Procedure N-1 "ETACS-ECU does not receive any
signal from the key reminder switch
."
Scan tool MB991958 does not sound when the hazard
warning light switch is turned from "OFF" to "ON" :
Refer to Inspection Procedure N-2 "ETACS-ECU
does not receive any signal from the hazard warning
light switch
."
ITEM NAME
CHECK CONDITION
Key reminder switch
Remove and reinsert the
ignition key
Hazard warning light switch
Turn the hazard warning light
switch from "OFF" to "ON"
position.
AC305412
AB
MB991910
DATA LINK
CONNECTOR
MB991824
MB991827
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