Mitsubishi Galant 9G. Manual — part 59
SYMPTOM PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-232
STEP 3. Check the transmitter.
Q: When the transmitter's battery is replaced, can the
encrypted code be registered?
YES : No action is necessary and testing is complete.
NO : Replace the transmitter. If the encrypted code cannot
be registered using the new transmitter, replace the
ETACS-ECU. Verify that the encrypted code can be
registered in the transmitter.
INSPECTION PROCEDURE E-4: Keyless Entry System: The trunk is not opened when the keyless
entry transmitter "TRUNK" button is operated.
ETACS-ECU
RECEIVER
TRANSMITTER"TRUNK"SWITCH
INPUT SIGNAL
JUNCTION BLOCK
TRUNK
LID LATCH
ASSEMBLY
CIRCUIT
BREAKER
MOTOR
Transmitter "TRUNK" Input Signal
SYMPTOM PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-233
.
CIRCUIT OPERATION
A receiver is incorporated in the ETACS-ECU. This
receiver receives a lock or unlock signal from the
transmitter.
.
TROUBLESHOOTING HINTS
• The RKE 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. Check that the doors can be locked and unlocked
by using the keyless entry transmitter.
Q: Can the doors be locked and unlocked normally when
the keyless entry transmitter is operated?
YES : Go to Step 2.
NO : Refer to Inspection Procedure E-1 "Keyless entry
system does not operate
."
AC305231BA
CONNECTOR: C-28
AC305413
CONNECTOR: C-217
AK
JUNCTION BLOCK
(REAR VIEW)
AC305260
AC
CONNECTOR: F-05
SYMPTOM PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-234
STEP 2. Check the input signal (by using the pulse check
mode of the monitor).
Check input signals from the transmitter.
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) Push the transmitter "TRUNK" button.
(4) Check that scan tool MB991958 sounds
Q: When the transmitter "TRUNK" button is turned ON,
does scan tool MB991958 sound?
YES : Go to Step 3.
NO : Refer to Inspection Procedure N-8 "ETACS-ECU
does not receive any signal from the lock, unlock,
trunk or panic switch
AC305412
AB
MB991910
DATA LINK
CONNECTOR
MB991824
MB991827
SYMPTOM PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-235
STEP 3. Check trunk lid latch assembly connector F-05
and ETACS-ECU connector C-217 for loose, corroded or
damaged terminals, or terminals pushed back in the
connector.
Q: Is trunk lid latch assembly connector F-05 and
ETACS-ECU connector C-217 in good condition?
YES : Go to Step 4.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
. Check that the headlights illuminate
normally.
STEP 4. Check the trunk lid latch assembly.
Remove the trunk lid latch assembly. Refer to GROUP 42,
Trunk lid, Trunk lid latch inspection
Q: Does the windshield washer motor operate normally?
YES : Go to Step 5.
NO : Replace the trunk lid latch assembly. Verify that the
windshield washer works normally.
AC305413AH
CONNECTOR: C-217
HARNESS SIDE
25
26
27
28
29
21
22
23
24
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
JUNCTION BLOCK
(REAR VIEW)
AC305260
CONNECTOR: F-05
AI
HARNESS SIDE
LEVER POSITION TESTER
CONNECTION
SPECIFIED
CONDITION
ON (Latch open)
2
− Ground
Less than 2 ohms
OFF (Latch shut)
2
− Ground
Open circuit
AC305827
1
2
AB
<FRONT
VIEW>
ON
OFF
LEVER
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