Mitsubishi Lancer (4A9 engine). Manual - part 214

 

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Mitsubishi Lancer (4A9 engine). Manual - part 214

 

 

ETACS

CHASSIS ELECTRICAL

54A-518

Display item list

NOTE: 

*

: Total elapsed time can be stored up to 

65,534 minutes (45.5 days). The display of M.U.T.-III 
is fixed to 65,534 minutes after 65,534 minutes have 
elapsed. Or, if the battery is disconnected, the total 
elapsed time cannot be measured properly. Thus, 
65,535 minutes (null value) is displayed. Because it 
is calculated based on the ETACS-ECU information, 
the correct display may not be shown if the ETACS-
ECU has had a timeout.

DIAGNOSIS CODE CHART

M1545001101300

Item No.

Item name

Data item

Unit

1

Odometer

Total driving distance after the diagnosis code is 
generated

km

2

Ignition cycle

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

Number of 
counts is 
displayed.

3

Elapsed time after 
failure

Total elapsed time after a diagnosis code is 
generated

min

*

4

Current trouble 
accumulative time

Cumulative time for current malfunction of diagnosis 
code

min

Diagnosis 
code No.

Diagnosis item

Reference page

U0001

Bus error (CAN-C)

U0019

Bus off (CAN-B)

U0100

Engine CAN timeout

U0101

CVT/AT CAN timeout

U0121

ABS/ASC CAN timeout

U0126

Steering wheel sensor CAN timeout

U0131

EPS CAN timeout

U0151

SRS CAN timeout

U0155

Meter CAN timeout

U0164

A/C/Heater control unit CAN timeout

U0168

KOS/WCM CAN timeout

U0181

Headlamp automatic levelling-ECU CAN timeout

U0184

Audio CAN timeout

U0245

Audio visual navigation unit CAN timeout

U0331

*

ECU internal error

U1004

AS&G CAN timeout

U1005

Corner sensor/back sensor-ECU CAN timeout

U1108

Additional CAN B ECU detected

U1120

Bus line (CAN-C) low input

U1121

Bus line (CAN-C) high input

ETACS

CHASSIS ELECTRICAL

54A-519

U0169

Sunroof LIN timeout <Vehicles with sunroof>

Refer to GROUP 54B 

− 

Diagnosis code chart .

U0215

P/W SW (DR) LIN timeout

U0231

Rain light sensor LIN timeout <Vehicles with auto lamp>

U1006

Security alarm siren LIN timeout <Vehicles with security alarm 
sensor>

U1007

Security alarm sensor LIN timeout <Vehicles with security alarm 
sensor>

U1109

Column SW LIN timeout

U150B

Column SW checksum error

U150C

P/W SW (DR) checksum error

U1511

Sunroof checksum error <Vehicles with sunroof>

U1512

Rain light sensor checksum error <Vehicles with auto lamp>

U1514

Bit error (LIN)

U1515

No-Bus activity error (LIN)

U1539

Security alarm siren LIN checksum error <Vehicles with security 
alarm sensor>

U1540

Security alarm SNSR.LIN checksum error <Vehicles with security 
alarm sensor>

B1034

Ambient air temperature sensor system (short circuit)

Refer to GROUP 55A 

− 

Diagnosis code chart .

B1035

Ambient air temperature sensor system (open circuit)

B16A2

Blown turn-signal lamp (LH) bulb

B16A3

Turn-signal lamp (LH) short circuit

B16A4

Blown turn-signal lamp (RH) bulb

B16A5

Turn-signal lamp (RH) short circuit

B16A6

Hazard warning lamp blown fuse

B16A7

Tail lamp (RH) circuit short <Short circuit in the position lamp (RH) 
circuit or the tail lamp (RH) circuit>

B16A8

Tail lamp (LH) circuit short <Short circuit in the position lamp (LH) 
circuit, tail lamp (LH) circuit or the licence plate lamp circuit>

B1761

*

Chassis No. not programmed

B210A

+B power supply (low input)

B210B

+B power supply (high input)

B2206

*

Chassis No. mismatch

B2215

*

ECU internal error

B222C

*

Coding not completed

B2350

Lighting switch malfunction

B2351

Wiper switch malfunction

B2353

Ignition power supply (low input)

B2354

Ignition power supply (high input)

Diagnosis 
code No.

Diagnosis item

Reference page

ETACS

CHASSIS ELECTRICAL

54A-520

NOTE: 

*

: If diagnosis codes No. U0331, B1761, 

B2206, B2215, or B222C is set, there may be an 
error with the coding data stored in the ETACS-ECU.

DIAGNOSIS CODE PROCEDURES

Code No.U0001 Bus error (CAN-C)

 

Code No.U0019 Bus off (CAN-B)

CAUTION

• If the diagnosis code No. U0001 or U0019 is 

set to the ETACS-ECU, always diagnose the 
CAN bus line.

• Before replacing the ECU, ensure that the 

communication circuit is normal.

TROUBLE JUDGMENT
When the ETACS-ECU is returned from the bus off 
state, or when the bus off error is indicated to the 
ETACS-ECU state, the diagnosis code No. U0001 
(CAN-C) or U0019 (CAN-B) is stored.

COMMENTS ON TROUBLE SYMPTOM
The ETACS-ECU may have a malfunction, or the 
ETACS-ECU power supply or earth circuit may have 
a problem.

PROBABLE CAUSES

• Malfunction of the ETACS-ECU

• Malfunction of wiring harness or connector

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. Check whether the diagnosis code is 
reset.
Check again if the diagnosis code is set to the 
ETACS-ECU.
(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 ETACS-ECU.

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 ).

Code No.U0100 Engine CAN timeout

CAUTION

• If diagnosis code No. U0100 is set to the 

ETACS-ECU, always diagnose the CAN bus 
line.

• Before replacing the ECU, ensure that the 

communication circuit is normal.

DIAGNOSTIC FUNCTION
If the signal from engine ECU cannot be received, 
the ETACS-ECU sets the diagnosis code No. U0100.

JUDGEMENT CRITERIA
After the following statuses continue to be true for 5 
seconds, if the communication with the engine ECU 
cannot be established for 600 ms or more, the 
ETACS-ECU determines that a problem has 
occurred.

• No abnormality is present to the network.

• Ignition switch is in the ON position.

• No abnormality is present to the power supply 

fuse (IOD fuse), or the odometer value is at 80.5 
km or more.

• ETACS-ECU system voltage is at 10−16 V.

PROBABLE CAUSES

• Malfunction of engine ECU

ETACS

CHASSIS ELECTRICAL

54A-521

• Malfunction of the ETACS-ECU

• Malfunction of the CAN bus

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 engine-ECU.

Q: Is the diagnosis code set?

YES : 

Troubleshoot the engine (Refer to GROUP 

13A 

− Troubleshooting  <1600> or GROUP 

13B 

− Troubleshooting  <1800-PETROL-

DOHC, 2000> or GROUP 13C 

− 

Troubleshooting  <DIESEL> or GROUP 13F 
− Troubleshooting  <1800-SOHC>).

NO : 

Go to Step 3.

STEP 3. M.U.T.-III other system diagnosis code
Check if diagnosis code No. U0100 is set to the 
ASC-ECU.

Q: Is the diagnosis code set?

YES : 

Go to Step 4.

NO : 

Go to Step 5.

STEP 4. Check whether the diagnosis code is 
reset.
Check again if the diagnosis code is set to the 
ETACS-ECU.
(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 engine ECU.

NO : 

The trouble can be an intermittent 
malfunction such as a poor connection or 
open circuit in the CAN bus lines between 
the engine ECU and the ETACS-ECU 
(GROUP 00 

− How to use Troubleshooting/

inspection Service Points 

− How to Cope 

with Intermittent Malfunction ).

STEP 5. Check whether the diagnosis code is 
reset.
Check again if the diagnosis code is set to the 
ETACS-ECU.
(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 ETACS-ECU.

NO : 

The trouble can be an intermittent 
malfunction such as a poor connection or 
open circuit in the CAN bus lines between 
the engine ECU and the ETACS-ECU 
(GROUP 00 

− How to use Troubleshooting/

inspection Service Points 

− How to Cope 

with Intermittent Malfunction ).

Code No.U0101 CVT/AT CAN timeout

CAUTION

• If diagnosis code No. U0101 is set to the 

ETACS-ECU, always diagnose the CAN bus 
line.

• Before replacing the ECU, ensure that the 

communication circuit is normal.

DIAGNOSTIC FUNCTION
If the signal from CVT-ECU, A/T-ECU cannot be 
received, the ETACS-ECU sets the diagnosis code 
No. U0101.

JUDGEMENT CRITERIA
After the following statuses continue to be true for 5 
seconds, if the communication with the CVT-ECU, A/
T-ECU cannot be established for 600 ms or more, 
the ETACS-ECU determines that a problem has 
occurred.

• No abnormality is present to the network.

• Ignition switch is in the ON position.

• No abnormality is present to the power supply 

fuse (IOD fuse), or the odometer value is at 80.5 
km or more.

• ETACS-ECU system voltage is at 10−16 V.

 

 

 

 

 

 

 

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