Mitsubishi 380. Instruction - page 84
SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)
54B-333
STEP 34. Check the ground circuit to the rear turn-signal
lamp (RH). Measure the resistance at rear combination
lamp (RH) connector F-03.
(1) Disconnect rear combination lamp (RH) connector F-03 and
measure the resistance available at the 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 36.
NO : Go to Step 35.
STEP 35. Check the wiring harness between rear
combination lamp (RH) connector F-03 (terminal 2) and
ground.
Q: Is the wiring harness between rear combination lamp
(RH) connector F-03 (terminal 2) and ground in good
condition?
YES : Replace the rear combination lamp socket assembly
(RH). Verify that the turn-signal lamps illuminate
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 turn-signal lamps illuminate normally.
AC305260
AH
CONNECTOR: F-03
HARNESS SIDE
AC209364
CONNECTOR F-03
(HARNESS SIDE)
HD
AC305260
AH
CONNECTOR: F-03
HARNESS SIDE
SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)
54B-334
STEP 36. Check ETACS-ECU connector C-219 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q: Is ETACS-ECU connector C-219 in good condition?
YES : Go to Step 37.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
P.00E-2
. Verify that the turn-signal lamps illuminate
normally.
STEP 37. Check the wiring harness between rear
combination lamp (RH) connector F-03 (terminal 5) and
ETACS-ECU connector C-219 (terminal 9).
54DB014A
CONNECTOR: C-219
JUNCTION BLOCK SIDE
JUNCTION BLOCK
(REAR VIEW)
54DB014A
CONNECTOR: C-219
JUNCTION BLOCK SIDE
JUNCTION BLOCK
(REAR VIEW)
AC305260
AH
CONNECTOR: F-03
HARNESS SIDE
SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)
54B-335
NOTE: Also check junction block connector C-204 for loose,
corroded, or damaged terminals, or terminals pushed back in
the connector. If junction block connector C-204 is damaged,
repair or replace the damaged component(s) as described in
GROUP 00E, Harness Connector Inspection
Q: Is the wiring harness between rear combination lamp
(RH) connector F-03 (terminal 5) and ETACS-ECU
connector C-219 (terminal 9) in good condition?
YES : Replace the rear combination lamp socket assembly
(RH). Verify that the turn-signal lamps illuminate
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 turn-signal lamps illuminate normally.
INSPECTION PROCEDURE I-4: The turn-signal lamp indicator does not illuminate normally.
NOTE: This troubleshooting procedure requires the
use of Diagnostic Tool MB991958 and SWS monitor
kit MB991813. For details on how to use the SWS
monitor, refer to "How to connect SWS monitor
."
.
CIRCUIT OPERATION
At the same time that the turn-signal lamps are illu-
minated, the ETACS-ECU sends a signal to illumi-
nate the turn-signal lamp indicator via the CAN bus
line.
.
TECHNICAL DESCRIPTION (COMMENT)
If the turn-signal indicator does not illuminate nor-
mally, connector(s), wiring harness in the CAN bus
lines, the ETACS-ECU or the combination meter may
be defective.
.
TROUBLESHOOTING HINTS
• Refer to circuit diagrams GROUP-
90
• Refer to configuration diagrams GROUP-
80
• The wiring harness or connectors may have
loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector
• The combination meter may be defective
• The ETACS-ECU may be defective
.
16DB324A
CONNECTOR: C-204
HARNESS SIDE
INPUT SIGNAL
ETACS-
ECU
COMBINATION
METER
CAN COMMUNICATION LINE
(CAN_L LINE)
CAN COMMUNICATION LINE
(CAN_H LINE)
·
HAZARD WARNING LIGHT
SWITCH
· TURN-SIGNAL
LIGHT
SWITCH
Turn-signal Lights Indicator Light Circuit
SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)
54B-336
DIAGNOSIS
Required Special Tools:
• MB991223: Harness Set
• MB991958: Diagnostic Tool (MUT-III Sub Assembly)
• MB991824: Vehicle Communication Interface (V.C.I.)
• MB991827: MUT-III USB Cable
• MB991910: MUT-III Main Harness A
• MB991813: SWS Monitor Kit
• MB991806: SWS Monitor Cartridge
• MB991812: SWS Monitor Harness (For Column-ECU)
• MB991822: Test Probe Harness
STEP 1. Check the turn-signal lamps.
When the column switch or the hazard warning lamp switch are
operated, check that the turn-signal lamps illuminate and go off
normally.
Q: Are the turn-signal lamps in good condition?
YES : Go to Step 2.
NO : First, repair the turn-signal lamp(s). Refer to
Inspection Procedure I-3 "One of the turn-signal
lamps does not illuminate
P.54B-316
."
STEP 2. Using Diagnostic Tool MB991958, diagnose the
CAN bus line.
CAUTION
To prevent damage to Diagnostic Tool MB991958, always
turn the ignition switch to the "LOCK" (OFF) position
before connecting or disconnecting Diagnostic Tool
MB991958.
(1) Connect Diagnostic Tool MB991958.Refer to "How to
connect SWS monitor
P.54B-13
."
(2) Turn the ignition switch to the "ON" position.
(3) Diagnose the CAN bus line.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the CAN bus line found to be normal?
YES : Go to Step 3.
NO : Repair the CAN bus line (Refer to GROUP 54C,
Diagnosis
P.54C-15
).
00DB076A
MB991910
DATA LINK
CONNECTOR
MB991824
MB991827