Mitsubishi Outlander XL. Manual — part 1040

(4)

Turn the ignition switch to the "LOCK" (OFF) position.

Q:Is the DTC set?

YES:

Replace the ETACS-ECU.

NO:

The trouble can be an intermittent malfunction such

as a poor connection or open circuit in the CAN bus lines
between the CAN box unit (audio visual navigation unit)
and the ETACS-ECU. (Refer to GROUP 00, How to Cope with
Intermittent Malfunction P.00-15)

DTC U1108: Excess CAN-B ECU Detection

M15410600060USA0000010000

If the DTC U1108 is set to the ETACS-ECU, always
diagnose the CAN bus line.

TROUBLE JUDGMENT
If the ETACS-ECU receives the signal from the CAN-
B line ECU which does not exist in the written variant
code information, the ETACS-ECU sets DTC U1108.

TROUBLESHOOTING HINTS

｠

The ETACS-ECU may be defective.

｠

The CAN bus 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)

ETACS

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DIAGNOSIS

STEP 1. Using scan tool MB991958, diagnose the CAN bus
line.

ZC501967

AC404789

ZC5019680000

MB991824

MB991827

MB991910

Data link

connector

To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before
connecting or disconnecting scan tool MB991958.

(1)

Connect scan tool MB991958. Refer to "How to connect the
Scan Tool (M.U.T.-III) P.54Ad-5."

(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 2.

NO:

Repair the CAN bus line. (Refer to GROUP 54D,

Diagnosis P.54D-17).

STEP 2. Variant code check.
Check the variant code written to the ETACS-ECU, and check
whether it matches the ECU connected to the CAN-B line.

Q:Is the check result normal?

YES:

Go to Step 3.

NO:

Make a correction so that the ECU connected to the

CAN-B line matches with the variant code information, and
then go to Step 3.

STEP 3. Recheck for diagnostic trouble code.
Check again if the DTC is set to the ETACS-ECU.

(1)

Erase the DTC.

(2)

Turn the ignition switch from "LOCK" (OFF) position to "ON"
position.

(3)

Check if DTC is set.

(4)

Turn the ignition switch to the "LOCK" (OFF) position.

Q:Is the DTC set?

YES:

Replace the ETACS-ECU.

NO:

This diagnosis is complete.

DTC U1120: Bus line (CAN-C) low input
DTC U1121: Bus line (CAN-C) high input

M15410600062USA0000010000

TROUBLE JUDGMENT
When the CAN bus line voltage is in the following
states, the ETACS-ECU set the DTC.

｠

If the CAN bus line voltage is 0.3 volt or less, DTC
U1120 is set.

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ETACS

DIAGNOSIS

｠

If the CAN bus line voltage is 4.7 volts or more, DTC
U1121 is set.

TROUBLESHOOTING HINTS

｠

The CAN bus line 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)

STEP 1. Using scan tool MB991958, diagnose the CAN bus
line.

ZC501967

AC404789

ZC5019680000

MB991824

MB991827

MB991910

Data link

connector

To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before
connecting or disconnecting scan tool MB991958.

(1)

Connect scan tool MB991958. Refer to "How to connect the
Scan Tool (M.U.T.-III) P.54Ad-5."

(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 2.

NO:

Repair the CAN bus line. (Refer to GROUP 54D,

Diagnosis P.54D-17).

STEP 2. Recheck for diagnostic trouble code.
Check again if the DTC is set to the ETACS-ECU.

(1)

Erase the DTC.

(2)

Turn the ignition switch from "LOCK" (OFF) position to "ON"
position.

(3)

Check if DTC is set.

(4)

Turn the ignition switch to the "LOCK" (OFF) position.

Q:Is the DTC set?

YES:

Replace the ETACS-ECU.

NO:

The diagnosis is complete.

ETACS

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DIAGNOSIS

DTC U0331: ECU internal error

M15410600061USA0000010000

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.

ZC501967

AC404789

ZC5019680000

MB991824

MB991827

MB991910

Data link

connector

To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before
connecting or disconnecting scan tool MB991958.

(1)

Connect scan tool MB991958. Refer to "How to connect the
Scan Tool (M.U.T.-III) P.54Ad-5."

(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.

DTC B1761: Chassis number not recorded

M15410600063USA0000010000

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.

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ETACS

DIAGNOSIS