Mitsubishi Galant 9G. Manual — part 1588
MULTI-CENTER DISPLAY
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CHASSIS ELECTRICAL
54A-224
DIAGNOSTIC TROUBLE CODE CHART
M1545001100039
NOTE: 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.
DTC NO.
DIAGNOSTIC ITEM
REFERENCE PAGE
010
Bus off
011
Powertrain control module time-out (related to engine)
012
powertrain control module time-out (related to A/T)
013
A/C-ECU time-out
014
Combination meter time-out
019
ETACS-ECU time-out
020
Failures information on powertrain control module (related to
engine)
021
Failures information on combination meter
022
Failures information on A/C-ECU
MULTI-CENTER DISPLAY
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CHASSIS ELECTRICAL
54A-225
DIAGNOSTIC TROUBLE CODE PROCEDURES
DTC 010: Buss Off
WITHOUT ELECTRONIC
BRAKE-FORCE
DISTRIBUTION (EBD)
AND ANTI-LOCK
BRAKING SYSTEM
(ABS)
WITHOUT ELECTRONIC
BRAKE-FORCE
DISTRIBUTION (EBD)
AND ANTI-LOCK
BRAKING SYSTEM
(ABS)
WITH ELECTRONIC
BRAKE-FORCE
DISTRIBUTION (EBD)
AND ANTI-LOCK
BRAKING SYSTEM
(ABS)
WITH ELECTRONIC
BRAKE-FORCE
DISTRIBUTION (EBD)
AND ANTI-LOCK
BRAKING SYSTEM
(ABS)
ABS-ECU OR ABS/TCL-ECU
JOINT
CONNECTOR (3)
POWERTRAIN
CONTROL MODULE
COMBINATION
METER
MULTI-CENTER DISPLAY UNIT
DATA LINK CONNECTOR
CPU
Multi-Center Display (Middle Grade Type) CAN-BUS Line Circuit
MULTI-CENTER DISPLAY
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CHASSIS ELECTRICAL
54A-226
CAUTION
If DTC 010 is set in the multi-center display,
always diagnose the CAN bus lines.
CAUTION
Whenever the ECU is replaced, ensure that the
communication circuit is normal.
.
CIRCUIT OPERATION
The multi-center display unit (middle grade type) is
linked to CAN communication lines to communicate
with the combination meter and the powertrain con-
trol module, both of which have a terminator resistor.
.
DTC SET CONDITION
If the multi-center display ceases communicating
once (i.e. bus off) and then returns to it, the
multi-center display will not communicate for three
minutes immediately after that point. This
three-minute period is called "Penalty mode." Imme-
diately after the multi-center display returns to com-
munication, the DTC is set.
.
TECHNICAL DESCRIPTION (COMMENT)
The CAN bus line wiring harness, connector(s), or
the multi-center display unit (middle grade type) may
be defective.
.
TROUBLESHOOTING HINTS
• The wiring harness or connectors may have
loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector.
• Malfunction of multi-center display unit (middle
grade type)
DIAGNOSIS
Required Special Tools:
• MB991958: Scan Tool (MUT-III Sub Assembly)
• MB991824: Vehicle Communication Interface (V.C.I.)
• MB991827: MUT-III USB Cable
• MB991911: MUT-III Main Harness A (Vehicles with CAN
communication system)
AC305206
CONNECTOR: A-02
AO
A-02 (GR)
AC305216
B-19 (B)
CONNECTOR: B-19
AD
AC305233
C-05 (B)
CP
CONNECTOR: C-05
AC305231
C-02
C-29
C-101
C-125 (B)
DC
CONNECTORS: C-02, C-29, C-101, C-125
MULTI-CENTER DISPLAY
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CHASSIS ELECTRICAL
54A-227
STEP 1. Using scan tool MB991958, diagnose the CAN bus
line.
Use scan tool MB991958 to diagnose the CAN bus lines.
(1) Connect scan tool MB991958 to the data link connector.
(2) Turn the ignition switch to "ON" position.
(3) Diagnose the CAN bus line.
Q: Is the check result satisfactory?
YES : Go to Step 2.
NO : Repair the CAN bus lines. (Refer to GROUP 54C,
Diagnosis-Can Bus Diagnostic Chart
). On
completion, go to step 3.
STEP 2. Recheck for diagnostic trouble code.
Recheck if the DTC is set.
1. Erase the DTC.
2. Turn the ignition switch to "ON" position.
3. Check if the DTC is set.
Q: Is the check result satisfactory?
YES : Intermittent malfunction is suspected. Refer to
GROUP 00, How to Use Troubleshooting/Inspection
Service Points - How to Cope with Intermittent
Malfunction
NO : Replace combination meter and then go to step 3.
STEP 3. Recheck for diagnostic trouble code.
Recheck if the DTC is set.
1. Erase the DTC.
2. Turn the ignition switch to "ON" position.
3. Check if the DTC is set.
Q: Is the check result satisfactory?
YES : The procedure is complete.
NO : Go to Step 1.
AC305412
AB
MB991910
DATA LINK
CONNECTOR
MB991824
MB991827
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