Mitsubishi Evolution X. Manual - part 1011

MMCS

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CHASSIS ELECTRICAL

54A-405

DTC U1415: Coding not completed/Data fail

CAUTION

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

CAN bus line.

• When replacing the ECU, always check that 

the communication circuit is normal. (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

• 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-382

."

(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-14

).

AC608435

Data link connector

MB991827

MB991824

MB991910

AB

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CHASSIS ELECTRICAL

54A-406

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

YES : Troubleshoot the ETACS-ECU (Refer to 

P.54A-582

).

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

).

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 ECU, 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

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CHASSIS ELECTRICAL

54A-407

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-382

."

(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-14

).

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

YES : Diagnose the ETACS-ECU (Refer to 

P.54A-582

).

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

).

AC608435

Data link connector

MB991827

MB991824

MB991910

AB

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CHASSIS ELECTRICAL

54A-408

TROUBLE SYMPTOM CHART

M1546001800592

Inspection 
procedure 
No.

Trouble symptom

Reference 
page

1

No navigation screen is displayed.

P.54A-409

2

No sound is heard. <Vehicles with audio amplifier>

P.54A-415

3

No sound is heard from one of the speakers. <vehicles with audio amplifier>

P.54A-424

4

The navigation system can be operated while the vehicle is driven.

P.54A-432

5

The screen is not normal in the navigation mode. (The displayed position of the 
vehicle mark deviates.)

P.54A-434

6

Poor reception.

P.54A-437

7

GPS signal can not be received.

P.54A-438

8

CD (compact disk)/DVD (Video Disk) cannot be played.

P.54A-439

9

Image of a DVD (video disk) is played, but no sound is played.

P.54A-440

10

Sound of a DVD (video disk) can be played, but no image is played.

P.54A-441

11

The picture and sound of external input are not played.

P.54A-443

12

Check the CAN box unit power supply circuit.

P.54A-445