Mitsubishi Lancer (4A9 engine). Manual - part 96

COMBINATION METER

CHASSIS ELECTRICAL

54A-46

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics
Use the M.U.T.-III to diagnose the CAN bus lines.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Repair the CAN bus line (Refer to GROUP 
54C 

− Troubleshooting ).

STEP 2. M.U.T.-III other system diagnosis code
Check again if the diagnosis code is set to the KOS-
ECU <vehicles with KOS> or WCM <vehicles with 
WCM>.

Q: Is the diagnosis code set?

Set to the KOS-ECU. : 

Troubleshoot the KOS. 

Refer to GROUP 42B 

− Diagnosis Code 

Chart .

Set to the WCM. : 

Troubleshoot the WCM. Refer to 

GROUP 42C 

− Diagnosis Code Chart .

The diagnosis code is not set. : 

Go to Step 3.

STEP 3. Check the M.U.T.-III Diagnosis code for 
other systems
Check if the diagnosis code No. U0168 is set to 
ETACS-ECU.

Q: Is the diagnosis code set?

YES : 

Go to Step 4.

NO : 

Go to Step 5.

STEP 4. Diagnosis code recheck
Check again if the diagnosis code is set to the combi-
nation meter.
(1) Erase the diagnosis code.
(2) Turn the ignition switch from the LOCK (OFF) 

position to the ON position.

(3) Check if the diagnosis code is set.

Q: Is the diagnosis code set?

YES : 

Replace KOS-ECU or WCM.

NO : 

A poor connection, open circuit, or other 
intermittent malfunction in the CAN bus line 
between the combination meter and KOS-
ECU or WCM. (Refer to GROUP 00 

− How 

to Use Troubleshooting/Inspection Service 
Points - How to Cope with Intermittent 
Malfunction .)

STEP 5. Diagnosis code recheck
Check again if the diagnosis code is set to the combi-
nation meter.
(1) Erase the diagnosis code.
(2) Turn the ignition switch from the LOCK (OFF) 

position to the ON position.

(3) Check if the diagnosis code is set.

Q: Is the diagnosis code set?

YES : 

Replace the combination meter.

NO : 

A poor connection, open circuit, or other 
intermittent malfunction in the CAN bus line 
between the combination meter and KOS-
ECU or WCM. (Refer to GROUP 00 

− How 

to Use Troubleshooting/Inspection Service 
Points - How to Cope with Intermittent 
Malfunction .)

Code No.U0184 Audio CAN timeout

CAUTION

• If the diagnosis code No. U0184 is set, be sure 

to diagnose the CAN bus line.

• When replacing the ECU, always check that 

the communication circuit is normal.

DIAGNOSTIC FUNCTION
When the signals from radio and CD player cannot 
be received, the combination meter sets the diagno-
sis code No. U0184.

JUDGMENT CRITERIA
With the statuses that the ignition switch is at ON 
position, system voltage is 10 

− 16 V (data from 

ETACS-ECU), and there is no malfunction to the 
power supply fuse (IOD fuse), or odometer value is 
80.5 km or more, if the communications with radio 
and CD player cannot be established for 2,500 ms or 
more, the combination meter determines that a prob-
lem has occurred.

PROBABLE CAUSES

• Malfunction of CAN bus line

• Malfunction of combination meter

• Malfunctions of radio and CD player

COMBINATION METER

CHASSIS ELECTRICAL

54A-47

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics
Use the M.U.T.-III to diagnose the CAN bus lines.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Repair the CAN bus line (Refer to GROUP 
54C 

− Troubleshooting ).

STEP 2. M.U.T.-III other system diagnosis code
Check again if the diagnosis code is set to the radio 
and CD player.

Q: Is the diagnosis code set?

YES : 

Troubleshoot the radio and CD player. Refer 

to .

NO : 

Go to Step 3.

STEP 3. Check the M.U.T.-III Diagnosis code for 
other systems
Check if the diagnosis code No. U0184 is set to 
ETACS-ECU.

Q: Is the diagnosis code set?

YES : 

Go to Step 4.

NO : 

Go to Step 5.

STEP 4. Diagnosis code recheck
Check again if the diagnosis code is set to the combi-
nation meter.
(1) Erase the diagnosis code.

(2) Turn the ignition switch from the LOCK (OFF) 

position to the ON position.

(3) Check if the diagnosis code is set.

Q: Is the diagnosis code set?

YES : 

Replace the radio and CD player.

NO : 

A poor connection, open circuit, or other 
intermittent malfunction in the CAN bus line 
between the combination meter and radio 
and CD player. (Refer to GROUP 00 

− How 

to Use Troubleshooting/Inspection Service 
Points - How to Cope with Intermittent 
Malfunction .)

STEP 5. Diagnosis code recheck
Check again if the diagnosis code is set to the combi-
nation meter.
(1) Erase the diagnosis code.
(2) Turn the ignition switch from the LOCK (OFF) 

position to the ON position.

(3) Check if the diagnosis code is set.

Q: Is the diagnosis code set?

YES : 

Replace the combination meter.

NO : 

A poor connection, open circuit, or other 
intermittent malfunction in the CAN bus line 
between the combination meter and radio 
and CD player. (Refer to GROUP 00 

− How 

to Use Troubleshooting/Inspection Service 
Points - How to Cope with Intermittent 
Malfunction .)

Code No.U0245 Audio visual navigation unit CAN timeout

CAUTION

• If the diagnosis code No. U0245 is set, be sure 

to diagnose the CAN bus line.

• When replacing the ECU, always check that 

the communication circuit is normal.

DIAGNOSTIC FUNCTION
When the signals from CAN box unit cannot be 
received, the combination meter sets the diagnosis 
code No. U0245.

JUDGMENT CRITERIA
With the statuses that the ignition switch is at ON 
position, system voltage is 10 

− 16 V (data from 

ETACS-ECU), and there is no malfunction to the 
power supply fuse (IOD fuse), or odometer value is 
80.5 km or more, if the communications with CAN 
box unit cannot be established for 2,500 ms or more, 
the combination meter determines that a problem 
has occurred.

PROBABLE CAUSES

• Malfunction of CAN bus line

• Malfunction of combination meter

• Malfunctions of CAN box unit

COMBINATION METER

CHASSIS ELECTRICAL

54A-48

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics
Use the M.U.T.-III to diagnose the CAN bus lines.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Repair the CAN bus line (Refer to GROUP 
54C 

− Troubleshooting ).

STEP 2. M.U.T.-III other system diagnosis code
Check again if the diagnosis code is set to the CAN 
box unit.

Q: Is the diagnosis code set?

YES : 

Perform the diagnosis code troubleshooting 

to the CAN box unit. Refer to .

NO : 

Go to Step 3.

STEP 3. Check the M.U.T.-III Diagnosis code for 
other systems
Check if the diagnosis code No. U0245 is set to 
ETACS-ECU.

Q: Is the diagnosis code set?

YES : 

Go to Step 4.

NO : 

Go to Step 5.

STEP 4. Diagnosis code recheck
Check again if the diagnosis code is set to the combi-
nation meter.
(1) Erase the diagnosis code.

(2) Turn the ignition switch from the LOCK (OFF) 

position to the ON position.

(3) Check if the diagnosis code is set.

Q: Is the diagnosis code set?

YES : 

Replace the CAN box unit.

NO : 

A poor connection, open circuit, or other 
intermittent malfunction in the CAN bus line 
between the combination meter and the 
CAN box unit. (Refer to GROUP 00 

− How 

to Use Troubleshooting/Inspection Service 
Points - How to Cope with Intermittent 
Malfunction .)

STEP 5. Diagnosis code recheck
Check again if the diagnosis code is set to the combi-
nation meter.
(1) Erase the diagnosis code.
(2) Turn the ignition switch from the LOCK (OFF) 

position to the ON position.

(3) Check if the diagnosis code is set.

Q: Is the diagnosis code set?

YES : 

Replace the combination meter.

NO : 

A poor connection, open circuit, or other 
intermittent malfunction in the CAN bus line 
between the combination meter and the 
CAN box unit. (Refer to GROUP 00 

− How 

to Use Troubleshooting/Inspection Service 
Points - How to Cope with Intermittent 
Malfunction .)

Code No.U1415 Coding not completed/Data fail

CAUTION

• If the diagnosis code No. U1415 is set, diag-

nose the CAN bus lines.

• When replacing the ECU, always check that 

the communication circuit is normal.

DIAGNOSTIC FUNCTION
If the vehicle information data is not registered to the 
combination meter, the combination meter sets the 
diagnosis code No. U1415.

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

PROBABLE CAUSES

• Malfunction of CAN bus line

• Malfunction of combination meter

• Malfunction of the ETACS-ECU

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics
Use the M.U.T.-III to diagnose the CAN bus lines.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Repair the CAN bus line (Refer to GROUP 
54C 

− Troubleshooting ).

STEP 2. M.U.T.-III other system diagnosis code
Check if diagnosis code is set to the ETACS-ECU.

Q: Is the diagnosis code set?

COMBINATION METER

CHASSIS ELECTRICAL

54A-49

YES : 

Troubleshoot the ETACS-ECU. Refer to .

NO : 

Go to Step 3.

STEP 3. Check whether the diagnosis code is 
reset.
Check again if the diagnosis code is set to the combi-
nation meter.
(1) Erase the diagnosis code.
(2) Turn the ignition switch from "LOCK" (OFF) 

position to "ON" position.

(3) Check if diagnosis code is set.

Q: Is the diagnosis code set?

YES : 

Replace the combination meter.

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 ).

TROUBLE SYMPTOM CHART

M1540200800692

CAUTION

• During diagnosis, a diagnosis code associated with other system may be set when the ignition 

switch is turned on with connector(s) disconnected. On completion, confirm all systems for diag-
nosis code(s). If diagnosis code(s) are set, erase them all.

• If the combination meter needs to be replaced as a result of troubleshooting, the current driving 

distance and elapsed days must be entered into the meter after the replacement in order to be 
used for service reminder function. Therefore, read "Integrated mileage for reminder," "Integrated 
days for reminder," "Mileage until Extra reminder," "Months until Extra reminder," and "Current 
schedule" from the meter before the replacement using the special function of M.U.T.-III, and note 
them. For the operation method of M.U.T.-III, refer to . If "Integrated mileage for reminder" or "Inte-
grated days for reminder" cannot be read from the meter using M.U.T.-III, use the following 
method.

a. As for the driving distance for check warning, use the driving distance displayed on the multi 

information display.

b. As for the elapsed days for check warning, calculate the number of elapsed days from the 

delivery date to the customer (service reminder function start date) and current date.

Trouble symptom

Inspection 
Procedure 
No.

Reference 
page

Power supply circuit check

1

The odometer and the trip meter are not displayed.

2

No needle meters work.

3

If the ignition switch is turned to the ON position, the indicator and warning 
lamps do not illuminate normally.

4

The speedometer does not work (the other meters work).

5

The tachometer does not work (the other meters work).

6

Buzzers do not sound normally.

7

The combination meter warning display does not illuminate normally or the multi 
information display is not displayed normally.

8

The multi information display screen cannot be changed with the operation of 
the meter information switch.

9

Fuel gauge does not work (other meters work)

10

Seat belt reminder function does not work normally.

11