Mitsubishi Evolution X. Manual — part 924

COMBINATION METER

TSB Revision

CHASSIS ELECTRICAL

54A-57

STEP 2. Using scan tool MB991958, read the audio visual
navigation unit diagnostic trouble code.
Check if DTC is set to the audio visual navigation unit.
Q: Is the DTC set?

YES : Troubleshoot the MMCS (Refer to

P.54A-384

NO : Go to Step 3.

STEP 3. Recheck for diagnostic trouble code.
Check again if the DTC is set to the combination meter.
(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 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

P.00-15

DTC U1415: Coding not completed/Data fail

CAUTION

• If DTC U1415 is set, diagnose 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 DTC
U1415.

JUDGEMENT 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.

TROUBLESHOOTING HINTS

• The CAN bus line may be defective.

• The combination meter 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)

COMBINATION METER

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CHASSIS ELECTRICAL

54A-58

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-25

(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 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 combination meter.
(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 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

P.00-15

AC608435

Data link connector

MB991827

MB991824

MB991910

COMBINATION METER

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CHASSIS ELECTRICAL

54A-59

TROUBLE SYMPTOM CHART

M1540200800302

CAUTION

• During troubleshooting, a DTC code associated with another system may be set when the ignition

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

• When the combination meter is required to be replaced as a result of the troubleshooting, the cur-

rent driving distance and number of elapsed days to be used for service reminder function must
be entered into the meter after the replacement. 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 scan tool
MB991958, and note them. For the operation method of scan tool MB991958, refer to

P.54A-93

. If

"Integrated mileage for reminder" or "Integrated days for reminder" cannot be read by the scan
tool MB991958, follow the method described below.

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

information display.

b. For the elapsed days for check warning, calculate the number of elapsed days from the deliv-

ery date to the customer (service remainder function start date) and current date.

Trouble symptom

Inspection
Procedure
No.

Reference
page

Power supply circuit check.

P.54A-60