Mitsubishi Galant (2004+). Manual — part 333
INPUT SIGNAL PROCEDURES
TSB Revision
SIMPLIFIED WIRING SYSTEM (SWS)
54B-523
INSPECTION PROCEDURE N-2: ETACS-ECU does not receive any signal from the hazard warning
light switch.
.
CIRCUIT OPERATION
The ETACS-ECU operates the following functions or
systems according to signal from the hazard warning
light switch:
• Turn-signal light buzzer
• Hazard warning light
• Keyless entry system (registering the encrypted
code)
.
TECHNICAL DESCRIPTION (COMMENT)
If the signal is not normal, the equipment or systems
described in "CIRCUIT OPERATION" do not work
normally.
.
TROUBLESHOOTING HINTS
• The hazard warning light switch may be defective
• The wiring harness or connectors may have
loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector
• The ETACS-ECU may be defective
HAZARD
WARNING
LIGHT
SWITCH
ETACS-ECU
Hazard Warning Light Switch Input Circuit
AC305233AQ
CONNECTOR: C-08
AC305413AL
CONNECTOR: C-218
C-218 (GR)
INPUT SIGNAL PROCEDURES
TSB Revision
SIMPLIFIED WIRING SYSTEM (SWS)
54B-524
DIAGNOSIS
Required Special Tool:
• MB991223: Harness Set
STEP 1. Check hazard warning light switch connector C-08
for loose, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Is hazard warning light switch connector C-08 in good
condition?
YES : Go to Step 2.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
. If the equipment described in "CIRCUIT
OPERATION" work normally, the input signal from the
hazard warning light switch should be normal.
STEP 2. Check the hazard warning light switch.
Remove the hazard warning light switch. Refer to GROUP 54A,
Hazard Warning Light Switch
. Then check continu-
ity between the switch terminals.
Q: Is the hazard warning light switch in good condition?
YES : Go to Step 3.
NO : Replace the hazard warning light switch. If the
equipment described in "CIRCUIT OPERATION",
work normally the input signal from the hazard
warning light switch should be normal.
AC305233AS
CONNECTOR: C-08
HARNESS SIDE
SWITCH
POSITION
TESTER
CONNECTION
SPECIFIED
CONDITION
Released
1
− 2
Open circuit
Pressed
1
− 2
Less than 2 ohms
AC307450
INPUT SIGNAL PROCEDURES
TSB Revision
SIMPLIFIED WIRING SYSTEM (SWS)
54B-525
STEP 3. Check the ground circuit to the hazard warning
light switch. Measure the resistance at hazard warning
light switch connector C-08.
(1) Disconnect hazard warning light switch connector C-08 and
measure the resistance available at the wiring harness side
of the connector.
(2) Measure the resistance value between terminal 2 and
ground.
• The resistance should be 2 ohms or less.
Q: Is the measured resistance 2 ohms or less?
YES : Go to Step 5.
NO : Go to Step 4.
STEP 4. Check the wiring harness between hazard warning
light switch connector C-08 (terminal 2) and ground.
Q: Is the wiring harness between hazard warning light
switch connector C-08 (terminal 2) and ground 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. If the
equipment described in "CIRCUIT OPERATION" work
normally, the input signal from the hazard warning
light switch should be normal.
AC305233AS
CONNECTOR: C-08
HARNESS SIDE
AC209364GW
CONNECTOR C-08
(HARNESS SIDE)
AC305233AS
CONNECTOR: C-08
HARNESS SIDE
INPUT SIGNAL PROCEDURES
TSB Revision
SIMPLIFIED WIRING SYSTEM (SWS)
54B-526
STEP 5. Check ETACS-ECU connector C-218 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q: Is ETACS-ECU connector C-218 in good condition?
YES : Go to Step 6.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
. If the equipment described in "CIRCUIT
OPERATION" work normally, the input signal from the
hazard warning light switch should be normal.
STEP 6. Check the wiring harness between hazard warning
light switch connector C-08 (terminal 1) and ETACS-ECU
connector C-218 (terminal 55).
Q: Is the wiring harness between hazard warning light
switch connector C-08 (terminal 1) and ETACS-ECU
connector C-218 (terminal 55) in good condition?
YES : Replace the ETACS-ECU. If the equipment described
in "CIRCUIT OPERATION" work normally, the input
signal from the hazard warning light switch should be
normal.
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. If the
equipment described in "CIRCUIT OPERATION" work
normally, the input signal from the hazard warning
light switch should be normal.
AC305413AN
CONNECTOR: C-218
JUNCTION BLOCK
(REAR VIEW)
C-218 (GR)
HARNESS SIDE
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
AC305233AS
CONNECTOR: C-08
HARNESS SIDE
AC305413AN
CONNECTOR: C-218
JUNCTION BLOCK
(REAR VIEW)
C-218 (GR)
HARNESS SIDE
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст