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Mitsubishi Outlander GS45X. Manual - part 165

SATELLITE RADIO TUNER

TSB Revision

CHASSIS ELECTRICAL

54A-657

HOW TO DIAGNOSE THE CAN BUS LINES

Required Special Tools:

• MB991958: Scan Tool (M.U.T.-III Sub Assembly)

• MB991824: Vehicles 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)

1. Connect scan tool MB991958 to the data link connector.
2. Turn the ignition switch to the "ON" position.
3. Select "CAN bus diagnosis" from the start-up screen.
4. When the vehicle information is displayed, confirm that it

matches the vehicle being diagnosed.

• If they match, go to Step 8.

• If not, go to Step 5.

5. Select the "view vehicle information" button.
6. Enter the vehicle information and select the "OK" button.
7. When the vehicle information is displayed, confirm again

that it matches the vehicle being diagnosed.

• If they match, go to Step 8.

• If not, go to Step 5.

8. Select the "OK" button.
9. When the optional equipment screen is displayed, choose

the one which the vehicle is fitted with, and then select the
"OK" button.

CHECK OF FREEZE FRAME DATA

The freeze frame data can be checked by using scan
tool.

When detecting fault and storing the diagnostic trou-
ble code, the ECU connected to CAN bus line
obtains the data before the determination of the diag-
nostic trouble code and the data when the diagnostic
trouble code is determined, and then stores the ECU
status of that time. By analyzing each data from scan
tool, the troubleshooting can be performed more effi-
ciently. The displayed items are as the table below.

Display item list

Item No.

Item name

Content

Unit

Odometer

Total driving distance after the diagnostic trouble
code is generated

mile

Ignition cycle

Number of times the ignition switch is turned "ON" or
"LOCK (OFF)" after the past failure transition

Number of
counts is
displayed.

Accumulated minute Cumulative time for current malfunction of

diagnostic trouble code

min

SATELLITE RADIO TUNER

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CHASSIS ELECTRICAL

54A-658

DIAGNOSTIC TROUBLE CODE CHART

M1544012900575

DIAGNOSTIC TROUBLE CODE PROCEDURES

DTC B2222: Radio receiver internal fail

CAUTION

If there is any problem in the CAN bus lines, an
incorrect diagnostic trouble code may be set.
Prior to this diagnosis, always diagnose the CAN
bus lines.

CAUTION

Before replacing the satellite radio tuner, be sure
to check that the power supply circuit, ground
circuit, and communication circuit are normal.

TROUBLE JUDGMENT

When the ignition switch is ON and the system volt-
age is from 10 V to 16 V (data from ETACS-ECU), if
the satellite radio tuner receives abnormal status by
signal conditioning 10 times consecutively, DTC
B2222 is stored.

COMMENTS ON TROUBLE SYMPTOM

The satellite radio tuner or CAN bus line may have a
problem.

PROBABLE CAUSES

• The satellite radio tuner may be defective.

• The CAN bus line may be defective

DIAGNOSIS

Required Special Tools:

• MB991958: Scan Tool (M.U.T.-III Sub Assembly)

• MB991824: Vehicles 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)

Diagnostic trouble
code number

Trouble content

Reference page

B2222

Radio receiver Internal fail

P.54A-658

U0019

Bus off (CAN-B)

P.54A-659

U0141

ETACS CAN timeout

P.54A-661

U0151

SRS-ABG CAN timeout

P.54A-663

U0154

OCM (occupant classification-ECU) CAN timeout

P.54A-665

U0155

Meter CAN timeout

P.54A-667

U0164

A/C CAN timeout

P.54A-669

U0168

WCM CAN timeout

P.54A-671

U0184

Audio CAN timeout

P.54A-673

SATELLITE RADIO TUNER

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CHASSIS ELECTRICAL

54A-659

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

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)

P.54A-655

(2) Turn the ignition switch to "ON" position.
(3) Diagnose the CAN bus line.
Q: Is the check result normal?

YES : Go to Step 2.
NO : Repair the CAN bus line. (Refer to GROUP 54C,

Diagnosis

P.54C-17

.) On completion, go to Step 2.

STEP 2. Recheck for diagnostic trouble code.
Check again if the DTC is set to the satellite radio tuner.
(1) Erase the DTC.
(2) Turn the ignition switch from "LOCK" (OFF) position to "ON"

position.

(3) Check if the DTC is set.
Q: Is the DTC set?

YES : Replace the satellite radio tuner.
NO : The trouble can be an intermittent malfunction (Refer

to GROUP 00, How to use
Troubleshooting/inspection Service Points, How to
Cope with Intermittent Malfunction

P.00-15

DTC U0019: Bus off (CAN-B)

CAUTION

If DTC U0019 is set, be sure to diagnose the CAN
bus line.

CAUTION

When replacing the ECU, always check that the
communication circuit is normal.

DIAGNOSTIC FUNCTION

If the CAN-B circuit malfunction occurs, the satellite
radio tuner sets DTC U0019.

JUDGMENT CRITERIA

With the ignition switch at the ON position and the
system voltage at 10

− 16 volts (data from

ETACS-ECU), if the Satellite radio tuner becomes
unable to transmit data normally due to the CAN-B
bus circuit malfunction, the satellite radio tuner deter-
mines that a problem has occurred.

ZC501967

AC404789

AC702802

MB991824

MB991827

MB991910

Data link

connector

SATELLITE RADIO TUNER

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CHASSIS ELECTRICAL

54A-660

TROUBLESHOOTING HINTS

The satellite radio tuner, power supply for the satel-
lite radio tuner, ground circuit, or CAN bus line may
have a problem.

DIAGNOSIS

Required Special Tools:

• MB991958: Scan Tool (M.U.T.-III Sub Assembly)

• MB991824: Vehicles 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.
Use scan tool MB991958 to diagnose the CAN bus lines.

CAUTION

Scan Tool (M.U.T.-III)

P.54A-655

(2) Turn the ignition switch to "ON" position.
(3) Diagnose the CAN bus line.
Q: Is the check result normal?

YES : Go to Step 2.
NO : Repair the CAN bus line. (Refer to GROUP 54C,

Diagnosis

P.54C-17

.) On completion, go to Step 2.

STEP 2. Check whether the scan tool MB991958 can
communicate with the satellite radio tuner.
Q: Is the check result normal?

YES : Erase the diagnostic trouble code. This diagnosis is

complete.

NO : Check the power supply circuit of the satellite radio

tuner, and repair if necessary.

ZC501967

AC404789

AC702802

MB991824

MB991827

MB991910

Data link

connector

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