Mitsubishi Outlander GS45X. Manual — part 192
ETACS
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CHASSIS ELECTRICAL
54A-765
DTC U0331: ECU internal error
.
TROUBLE JUDGMENT
If the ETACS-ECU error counter value is detected to
be "255," DTC U0331 is set, and the ETACS-ECU is
reset. The DTC U0331 exists only as past trouble.
.
TROUBLESHOOTING HINTS
• The ETACS-ECU may be defective.
DIAGNOSIS
Required Special Tools:
• MB991958: Scan Tool (M.U.T.-III Sub Assembly)
• MB991824: Vehicle Communication Interface (V.C.I.)
• MB991827: M.U.T.-III USB Cable
• MB991910: M.U.T.-III Main Harness A (Vehicles with
CAN communication system)
Recheck for diagnostic trouble code.
Check again if the DTC is set to the ETACS-ECU.
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 the
Scan Tool (M.U.T.-III)
."
(2) Turn the ignition switch to the "ON" position.
(3) Erase the DTC.
(4) Turn the ignition switch from "LOCK" (OFF) position to "ON"
position.
(5) Check if DTC is set.
(6) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?
YES : Replace the ETACS-ECU.
NO : The diagnosis is complete.
ZC501967
AC404789
AC702802
MB991824
MB991827
MB991910
Data link
connector
AB
ETACS
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CHASSIS ELECTRICAL
54A-766
DTC B1761: Chassis number not recorded
.
TROUBLE JUDGMENT
If the chassis number is not written to the
ETACS-ECU, the ETACS-ECU sets DTC B1761.
.
TROUBLESHOOTING HINTS
• Chassis number not recorded
• The ETACS-ECU may be defective.
DIAGNOSIS
Required Special Tools:
• MB991958: Scan Tool (M.U.T.-III Sub Assembly)
• MB991824: Vehicle Communication Interface (V.C.I.)
• MB991827: M.U.T.-III USB Cable
• MB991910: M.U.T.-III Main Harness A (Vehicles with
CAN communication system)
Recheck for diagnostic trouble code.
Check again if the DTC is set to the ETACS-ECU.
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 the
Scan Tool (M.U.T.-III)
."
(2) Turn the ignition switch to the "ON" position.
(3) Erase the DTC.
(4) Turn the ignition switch from "LOCK" (OFF) position to "ON"
position.
(5) Check if DTC is set.
(6) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?
YES : Replace with the coded ETACS-ECU.
NO : The diagnosis is complete.
ZC501967
AC404789
AC702802
MB991824
MB991827
MB991910
Data link
connector
AB
ETACS
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CHASSIS ELECTRICAL
54A-767
DTC B210A: +B power supply (low input)
DTC B210B: +B power supply (high input)
CAUTION
Before replacing the ECU, ensure that the input
and output signal circuits are normal.
.
TROUBLE JUDGMENT
The ETACS-ECU sets DTC B210A if the power sup-
ply fuse voltage decreases to the specified value or
less, and sets DTC B210B if the power supply fuse
voltage increases to the specified value or more.
However, when the status returns to normal, the
ETACS-ECU automatically erases DTCs B210A and
B210B.
.
TECHNICAL DESCRIPTION (COMMENT)
The power supply fuse or the ETACS-ECU may have
a problem.
.
TROUBLESHOOTING HINTS
• The power supply fuse may be defective.
• The ETACS-ECU may be defective.
• The battery may be defective.
• The generator 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
• MB992006: Extra Fine Probe
ETACS-ECU Power Supply Circuit
ETACS-ECU
FUSIBLE
LINK
36
RELAY
BOX
ACA02655BA
Connector: C-307
ETACS
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CHASSIS ELECTRICAL
54A-768
• MB991958: Scan Tool (M.U.T.-III Sub Assembly)
• MB991824: Vehicle Communication Interface (V.C.I.)
• MB991827: M.U.T.-III USB Cable
• MB991910: M.U.T.-III Main Harness A (Vehicles with
CAN communication system)
STEP 1. Power supply fuse check.
Q: Is the fuse in good condition?
YES : Go to Step 3.
NO : Go to Step 2.
STEP 2. Wiring harness check between C-307 ETACS-ECU
connector and fuse No. 30.
Check the power supply line for short circuit.
Q: Is the check result normal?
YES : Replace the fuse No.30.
NO : A short circuit may be present in the power supply
circuit. Repair the wiring harness between
ETACS-ECU connector C-307 terminal No. 2 and
fuse No. 30, and replace fuse No. 30.
STEP 3. Battery check
Refer to
.
Q: Is the battery in good condition?
YES : Go to Step 4.
NO : Charge or replace the battery.
STEP 4. Charging system check
Refer to GROUP 16
− Output Current Test
.
Q: Is the charging system in good condition?
YES : Go to Step 5.
NO : Repair or replace the charging system component(s).
STEP 5. Check ETACS-ECU connector C-307 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q: Is ETACS-ECU connector C-307 in good condition?
YES : Go to Step 6.
NO : Repair or replace the component(s). Refer to GROUP
00E, Harness Connector Inspection
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