Mitsubishi Outlander GS45X. Manual - part 121

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• MB991824: V.C.I.

• MB991827 M.U.T.-III USB Cable

• MB991910 M.U.T.-III Main Harness A

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

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-458

."

(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 54C, 

Diagnosis 

P.54C-17

).

STEP 2. Using scan tool MB991958 read the satellite radio 
tuner diagnostic trouble code.
Check whether a satellite radio tuner DTCs are set or not.
(1) Turn the ignition switch to the "ON" position.
(2) Check for satellite radio tuner DTCs.
(3) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?

YES : Diagnose the satellite radio tuner. (Refer to 

P.54A-658

.)

NO :   Go to Step 3.

STEP 3. Using scan tool MB991958, read the SRS-ECU 
diagnostic trouble code.
Check if the DTC U0195 is set to the SRS-ECU.
Q: Is the DTC set?

YES : Go to Step 4.
NO :  Go to Step 5.

AC608435

Data link connector

MB991827

MB991824

MB991910

AB

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STEP 4. Recheck for diagnostic trouble code.
Check again if the DTC is set to the CAN box unit.
(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 satellite radio tuner.
NO :  The trouble can be an intermittent malfunction such 

as a poor connection or open circuit in the CAN bus 
lines between the satellite radio tuner and the CAN 
box unit (Refer to GROUP 00, How to Cope with 
Intermittent Malfunction 

P.00-15

).

STEP 5. Recheck for diagnostic trouble code.
Check again if the DTC is set to the CAN box unit.
(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 CAN box unit.
NO :  The trouble can be an intermittent malfunction such 

as a poor connection or open circuit in the CAN bus 
lines between the satellite radio tuner and the CAN 
box unit (Refer to GROUP 00, How to Cope with 
Intermittent Malfunction 

P.00-15

).

DTC U1415: Coding not completed/Data fail

CAUTION

• If DTC U1415 is set, be sure to diagnose the 

CAN bus line.

• When replacing the CAN box unit, always 

check that the communication circuit is nor-
mal. (Check that the voltage is 10 V or more.)

.

DIAGNOSTIC FUNCTION

If the vehicle information data is not registered to the 
CAN box unit, the CAN box unit sets DTC U1415.

.

JUDGMENT CRITERIA

With the global coding counter value "0," if all the glo-
bal coding data (vehicle information) are not stored, 
the CAN box unit determines that a problem has 
occurred.

.

TROUBLESHOOTING HINTS

• The CAN bus line may be defective.

• The CAN box unit may be defective.

• The ETACS-ECU 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

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• MB991910: M.U.T.-III Main Harness A (Vehicles with 

CAN communication system)

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

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-458

."

(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 54C, 

Diagnosis 

P.54C-17

).

STEP 2. Using scan tool MB991958, read the ETACS-ECU 
diagnostic trouble code.
Check if the diagnostic trouble code relating to the coding error 
is set to the ETACS-ECU.
Q: Is the DTC set?

YES : Troubleshoot the ETACS-ECU (Refer to 

P.54A-732

), 

and then go to Step 3.

NO :  Go to Step 3.

STEP 3. Recheck for diagnostic trouble code.
Check again if the DTC is set to the CAN box unit.
(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 CAN box unit.
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

).

ZC501967

AC404789

AC606941AB

MB991824

MB991827

MB991910

Data link

connector

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DTC U1417: Implausible coding data

CAUTION

• If diagnostic trouble code U1417 is set in CAN 

box unit, always diagnose the CAN bus lines. 
If there is any fault in the CAN bus lines, an 
incorrect diagnostic trouble code may be set. 
In this case, the set diagnostic trouble code is 
not highly reliable.

• Before replacing the CAN box unit, ensure 

that the communication circuit is normal. 
(Check that the voltage is 10 V or more.)

• When the diagnostic trouble code U1417 is 

set in CAN box unit, the diagnostic trouble 
code may also be set in ETACS-ECU. When 
the diagnostic trouble code is set in 
ETACS-ECU, carry out the diagnosis of the 
diagnostic trouble code for ETACS-ECU first.

.

CIRCUIT OPERATION

CAN box unit receives the vehicle information stored 
in the ETACS-ECU via CAN bus lines.

.

DTC SET CONDITIONS

CAN box unit communicates with ETACS-ECU via 
CAN bus lines. This diagnostic trouble code is set 
when the vehicle information received from the 
ETACS-ECU is invalid.

.

PROBABLE CAUSES

• Malfunction of ETACS-ECU

• ETACS-ECUs have been interchanged between 

two vehicles.

• CAN box unit malfunction

• External noise interference

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

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

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-458

."

(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 54C, 

Diagnosis 

P.54C-17

).

ZC501967

AC404789

AC606941AB

MB991824

MB991827

MB991910

Data link

connector