Mitsubishi Outlander (2013+). Manual — part 553

TROUBLESHOOTING <OSS-ECU>

KEYLESS OPERATION SYSTEM (KOS)

42B-73

JUDGEMENT CRITERIA

Judgment Criterion

• Chassis number or key code has the initial value

(not written)

PROBABLE CAUSES

• Malfunction of the CAN bus line

• Chassis number not written

• Key code not written

• Malfunction of OSS-ECU

• Electric steering lock malfunction

DIAGNOSIS PROCEDURE

1. M.U.T.-III CAN bus diagnosis <when B1159 or

B1160 is set>

2. Chassis number registration

3. OSS-ECU diagnosis code recheck

Code No. B1161 Chassis No. mismatch

CAUTION

• When the diagnosis code No.B1161 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 chassis number registered in OSS-ECU is
different from the chassis number transmitted by
engine-ECU on the CAN bus line, OSS-ECU sets the
diagnosis code No.B1161.

JUDGEMENT CRITERIA

Check Conditions

• When all the following conditions are met.

a. Power supply mode: ON
b. Chassis number written in OSS-ECU

Judgment Criterion

• The chassis number received via CAN communi-

cation is different from the chassis number written
in OSS-ECU.

PROBABLE CAUSES

• Malfunction of the CAN bus line

• Writing error of chassis number to engine-ECU

(engine-ECU has been interchanged between
two vehicles, or chassis number has not been
written after engine-ECU replacement)

• Malfunction of OSS-ECU

DIAGNOSIS PROCEDURE

1. M.U.T.-III CAN bus diagnosis

2. Check of chassis number in engine-ECU

3. OSS-ECU diagnosis code recheck

Code No. B1163 Coding data mismatch

CAUTION

• When the diagnosis code No.B1163 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 coding data registered in OSS-ECU is dif-
ferent from the coding data transmitted on the CAN
bus, OSS-ECU sets the diagnosis code No.B1163.
At the same time, OSS-ECU displays the power sup-
ply system error warning screen to the multi informa-
tion display of the combination meter, and flashes the
indicator of engine switch in orange.

JUDGEMENT CRITERIA

Check Conditions

• For 5 seconds since the start of the reception of

ignition status signal (ON or during cranking)
transmitted from ETACS-ECU.

Judgment Criterion

• A coding data is received which is different from

the current coding status.

PROBABLE CAUSES

• Malfunction of the CAN bus line

• ETACS-ECU malfunction

• ETACS-ECU has been interchanged between

two vehicles

• Malfunction of OSS-ECU

DIAGNOSIS PROCEDURE

1. M.U.T.-III CAN bus diagnosis

TROUBLESHOOTING <OSS-ECU>

KEYLESS OPERATION SYSTEM (KOS)

42B-74

2. ETACS-ECU diagnosis code check

3. ETACS-ECU coding data check

4. OSS-ECU diagnosis code recheck

Code No. B1166 Special mode

DIAGNOSTIC FUNCTION

When OSS-ECU is in the special operation mode
(ECU is new), OSS-ECU sets the diagnosis code
No.B1166, and flashes the indicator of engine switch
in green. When the engine switch is pressed, only
the power supply mode of the vehicle can be
changed without key certification.

NOTE: After the chassis number and key code are
written, the operation mode shifts to the normal oper-
ation mode when the certification communication
becomes valid at an engine switch operation, and the
diagnosis code No.B1166 is erased.

JUDGEMENT CRITERIA

Judgment Criterion

• During special operation mode

PROBABLE CAUSES

• Chassis number not written

• Key code not written

• Malfunction of OSS-ECU

• KOS-ECU malfunction (registration is not com-

plete after the simultaneous replacement with
OSS-ECU)

• Keyless operation key malfunction (registration is

not complete after the simultaneous replacement
with OSS-ECU)

• Electric steering lock malfunction (registration is

not complete after the simultaneous replacement
with OSS-ECU)

DIAGNOSIS PROCEDURE

1. Check the KOS diagnosis code.

2. Check if OSS-ECU diagnosis code No.B1159,

B1160, B1164, or B1165 is set.

3. After operating the engine switch from ON to OFF

twice, recheck the diagnosis code of OSS-ECU.

Code No. B1731 ENG ECU authentification timeout

CAUTION

• When the diagnosis code No. B1731 is set, be

sure to diagnose the CAN bus line.

• When replacing the ECU, always check that

the communication circuit is normal.

DIAGNOSTIC FUNCTION

If the necessary data cannot be received from
engine-ECU via CAN bus line during the engine
starting certification with engine-ECU, OSS-ECU
determines that a problem has occurred, and sets
the diagnosis code No.B1731. At the same time,
OSS-ECU displays the immobilizer certification sys-
tem inspection warning screen to the multi informa-
tion display of the combination meter.

JUDGEMENT CRITERIA

Check Conditions

• At engine starting certification

Judgment Criterion

• At the engine starting certification with

engine-ECU, necessary data cannot be received
from engine-ECU via CAN bus line.

PROBABLE CAUSES

• Malfunction of the CAN bus line

• Malfunction of engine-ECU

• Malfunction of OSS-ECU

DIAGNOSIS PROCEDURE

1. M.U.T.-III CAN bus diagnosis

2. Engine-ECU diagnosis code check

3. OSS-ECU diagnosis code recheck

TROUBLESHOOTING <OSS-ECU>

KEYLESS OPERATION SYSTEM (KOS)

42B-75

Code No. B1A28 ENG ECU authentification error

CAUTION

• If the diagnosis code No. B1A28 is set, diag-

nose the CAN bus lines.

• When replacing the ECU, always check that

the communication circuit is normal.

DIAGNOSTIC FUNCTION

When the OSS certification result is different from the
engine status after the completion of engine starting
permission communication, OSS-ECU determines
that a problem has occurred, and sets the diagnosis
code No.B1A28. At the same time, OSS-ECU dis-
plays the immobilizer certification system inspection
warning screen to the multi information display of the
combination meter.

JUDGEMENT CRITERIA

Check Conditions

• At engine starting certification

Judgment Criterion

• Certification result unmatch is received from

engine-ECU.

PROBABLE CAUSES

• Writing error of chassis number to engine-ECU

(engine-ECU has been interchanged between
two vehicles, or chassis number has not been
written after engine-ECU replacement)

• Malfunction of the CAN bus line

• Malfunction of OSS-ECU

DIAGNOSIS PROCEDURE

1. M.U.T.-III CAN bus diagnosis

2. Checking whether OSS-ECU diagnosis code

No.B1161 is set

3. OSS-ECU diagnosis code recheck

Code No. U0141 ETACS CAN timeout

CAUTION

• If diagnosis code No. U0141 is set, be sure to

diagnose the CAN bus line.

• Before replacing ECU, ensure that the com-

munication circuit is normal.

DIAGNOSTIC FUNCTION

When the signal from ETACS-ECU cannot be
received, OSS-ECU sets the diagnosis code
No.U0141.

JUDGEMENT CRITERIA

Check Conditions

• When all the following conditions are met.

a. Power supply mode: ON
b. ETACS-ECU system voltage is at 10 to 16 V.

Judgment Criterion

• After the following condition is met, 2,500 ms or

more have elapsed.

a. CAN signal from ETACS-ECU cannot be

received.

PROBABLE CAUSES

• Malfunction of the CAN bus line

• ETACS-ECU malfunction

• Malfunction of ETACS-ECU power supply circuit

• Malfunction of OSS-ECU

DIAGNOSIS PROCEDURE

1. M.U.T.-III CAN bus diagnosis

2. Diagnosis code check of combination meter

3. OSS-ECU diagnosis code recheck

Code No. U0155 Meter CAN timeout

CAUTION

• If diagnosis code No. U0155 is set, be sure to

diagnose the CAN bus line.

• Before replacing ECU, ensure that the com-

munication circuit is normal.

DIAGNOSTIC FUNCTION

When the signal from the combination meter cannot
be received, OSS-ECU sets the diagnosis code
No.U0155.

TROUBLESHOOTING <OSS-ECU>

KEYLESS OPERATION SYSTEM (KOS)

42B-76

JUDGEMENT CRITERIA

Check Conditions

• When all the following conditions are met.

a. Power supply mode: ON
b. ETACS-ECU system voltage is at 10 to 16 V.

Judgment Criterion

• After the following condition is met, 2,500 ms or

more have elapsed.

a. CAN signal from the combination meter can-

not be received.

PROBABLE CAUSES

• Malfunction of the CAN bus line

• Combination meter malfunction

• Malfunction of combination meter power supply

circuit

• Malfunction of OSS-ECU

DIAGNOSIS PROCEDURE

1. M.U.T.-III CAN bus diagnosis

2. ETACS-ECU diagnosis code check

3. OSS-ECU diagnosis code recheck

Code No. U0164 A/C CAN timeout

CAUTION

• If diagnosis code No. U0164 is set, be sure to

diagnose the CAN bus line.

• Before replacing ECU, ensure that the com-

munication circuit is normal.

DIAGNOSTIC FUNCTION

When the signal from the heater control unit or
A/C-ECU cannot be received, OSS-ECU sets the
diagnosis code No.U0164.

JUDGEMENT CRITERIA

Check Conditions

• When all the following conditions are met.

a. Power supply mode: ON
b. ETACS-ECU system voltage is at 10 to 16 V.

Judgment Criterion

• After the following condition is met, 2,500 ms or

more have elapsed.

a. CAN signal from the heater control unit or

A/C-ECU cannot be received.

PROBABLE CAUSES

• Malfunction of the CAN bus line

• Malfunction of heater control unit or A/C-ECU

• Malfunction of heater control unit or A/C-ECU

power supply circuit

• Malfunction of OSS-ECU

DIAGNOSIS PROCEDURE

1. M.U.T.-III CAN bus diagnosis

2. ETACS-ECU diagnosis code check

3. OSS-ECU diagnosis code recheck

Code No. U0168 KOS CAN timeout

CAUTION

• If diagnosis code No. U0168 is set, be sure to

diagnose the CAN bus line.

• Before replacing ECU, ensure that the com-

munication circuit is normal.

DIAGNOSTIC FUNCTION

When the signal from KOS-ECU cannot be received,
OSS-ECU sets the diagnosis code No.U0168.

JUDGEMENT CRITERIA

Check Conditions

• When all the following conditions are met.

a. Power supply mode: ON
b. ETACS-ECU system voltage is at 10 to 16 V.

Judgment Criterion

• After the following condition is met, 2,500 ms or

more have elapsed.

a. CAN signal from KOS-ECU cannot be

received.

PROBABLE CAUSES

• Malfunction of the CAN bus line

• Malfunction of KOS-ECU

• Malfunction of KOS-ECU power supply circuit

• Malfunction of OSS-ECU

DIAGNOSIS PROCEDURE

1. M.U.T.-III CAN bus diagnosis

2. ETACS-ECU diagnosis code check