Mitsubishi Outlander GS45X. Manual — part 1131

DIAGNOSIS

TSB Revision

KEYLESS OPERATION SYSTEM (KOS)

42B-103

STEP 9. Recheck for diagnostic trouble code.
(1) Turn the ignition switch to the "LOCK" (OFF) position.
(2) Turn the ignition switch to the "ON" position.
(3) Check if the DTC is set.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC C1912, C1922, C1932 or C1942 set?

YES : Start over at Step 1.
NO : The procedure is complete.

DTC C1913: Acceleration sensor abnormality 1

DTC C1923: Acceleration sensor abnormality 2

DTC C1933: Acceleration sensor abnormality 3

DTC C1943: Acceleration sensor abnormality 4

DTC C1914: Pressure sensor abnormality 1

DTC C1924: Pressure sensor abnormality 2

DTC C1934: Pressure sensor abnormality 3

DTC C1944: Pressure sensor abnormality 4

CAUTION

If there is any problem in the CAN bus lines, an incorrect
diagnostic trouble code may be set. Prior to this diagno-
sis, diagnose the CAN bus lines (Refer to GROUP 54C,
Trouble code diagnosis

P.54C-17

).

.

DTC SET CONDITION

DTC C1913, C1923, C1933, C1943

• The TPMS transmitter detects if the wheel is rotated by the

acceleration sensor and sends the signals to KOS-ECU.
When the TPMS transmitter judges that the acceleration
sensor is failed, the failure signal is send to KOS-ECU, and
KOS-ECU sets this code.

DTC C1914, C1924, C1934, C1944

• The TPMS transmitter detects if the tire pressure sensor is

normal and sends the signal to KOS-ECU. When the TPMS
transmitter judges that the tire pressure sensor is failed, the
failure signal is send to KOS-ECU, and KOS-ECU sets this
code.

.

TROUBLESHOOTING HINTS

The most likely causes for this DTC to set are:

• Low battery that is incorporated into the TPMS transmitter

• Damaged wiring harness and connector

• Registered IDs unmatched

• Malfunction of TPMS transmitter

• Malfunction of KOS-ECU

DIAGNOSIS

Required Special Tools:

• MB991958: Scan Tool (M.U.T.-III Sub Assembly)

DIAGNOSIS

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KEYLESS OPERATION SYSTEM (KOS)

42B-104

• 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.
Use scan tool to diagnose the CAN bus lines.
Q: Is the check result normal?

YES : Go to Step 3.
NO : Repair the CAN bus lines (Refer to GROUP 54C

−

CAN Bus Diagnostics table

P.54C-17

). On

completion, go to Step 2.

STEP 2. Diagnostic trouble code recheck after resetting
CAN bus lines
Q: Is the DTC C1913, C1923, C1933, C1943, C1914, C1924,

C1934 or C1944 set?
YES : Go to Step 3.
NO : The procedure is complete.

STEP 3. Check for TPMS transmitter.
Identify the TPMS transmitter which the DTC is set by TPMS
transmitter check (Refer to

P.42B-188

).

NOTE: The TPMS transmitter which cannot be checked may
be faulty or the ID code may not be registered, thus do not
replace it, but register the ID code. If the transmitter is faulty, it
is replaced in the ID code registration process.
Q: Are there any TPMS transmitters which are identified?

YES : Among the checked TPMS transmitters, replace the

TPMS transmitters to which the DTC is set. Then
register the ID codes (Refer to

P.42B-15

). Then go to

Step 4.

NO : Even when no transmitter is checked, register the ID

codes (Refer to

P.42B-188

). Then go to Step 4.

STEP 4. Diagnostic trouble code recheck after register the
ID codes
(1) Turn the ignition switch to the "LOCK" (OFF) position.
(2) Turn the ignition switch to the "ON" position.
(3) Check if the DTC is set.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC C1913, C1923, C1933, C1943, C1914, C1924,

C1934 or C1944 set?
YES : Replace the KOS-ECU and register the ID codes

(Refer to

P.42B-15

). Then start over at Step 1.

NO : The procedure is complete.

DIAGNOSIS

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KEYLESS OPERATION SYSTEM (KOS)

42B-105

DTC C1915: Transmitter OFF mode 1

DTC C1925: Transmitter OFF mode 2

DTC C1935: Transmitter OFF mode 3

DTC C1945: Transmitter OFF mode 4

CAUTION

If there is any problem in the CAN bus lines, an incorrect
diagnostic trouble code may be set. Prior to this diagno-
sis, diagnose the CAN bus lines (Refer to GROUP 54C,
Trouble code diagnosis

P.54C-16

).

.

DTC SET CONDITION

When the TPMS transmitter(s) is in the OFF MODE, this code
is set.

.

TROUBLESHOOTING HINTS

The most likely causes for this DTC to set are:

• OFF mode cancellation not performed

• Damaged wiring harness and connector

• Malfunction of TPMS transmitter

• Malfunction of KOS-ECU

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.
Use scan tool to diagnose the CAN bus lines.
Q: Is the check result normal?

YES : Go to Step 3.
NO : Repair the CAN bus lines (Refer to GROUP 54C

−

CAN Bus Diagnostics table

P.54C-16

). On

completion, go to Step 2.

STEP 2. Diagnostic trouble code recheck after resetting
CAN bus lines
(1) Turn the ignition switch to the "LOCK" (OFF) position.
(2) Turn the ignition switch to the "ON" position.
(3) Check if the DTC is set.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC C1915, C1925, C1935 or C1945 set?

YES : Go to Step 3.
NO : The procedure is complete.

DIAGNOSIS

TSB Revision

KEYLESS OPERATION SYSTEM (KOS)

42B-106

STEP 3. Diagnostic trouble code check
(1) Drive the vehicle for five minutes.
(2) Turn the ignition switch to the "LOCK" (OFF) position.
(3) Turn the ignition switch to the "ON" position.
(4) Check if the DTC is set.
(5) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Are the all DTC C1915, C1925, C1935 and C1945 set?

YES : Replace the TPMS transmitters of all the four wheels,

and register ID codes (Refer to

P.42B-15

). Then go to

Step 4.

NO : Register the ID codes (Refer to

P.42B-188

). Then go

to Step 4.

STEP 4. Diagnostic trouble code recheck after register the
ID codes
(1) Turn the ignition switch to the "ON" position.
(2) Check if the DTC is set.
(3) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC C1915, C1925, C1935 or C1945 set?

YES : Replace the KOS-ECU and register the ID codes

(Refer to

P.42B-15

). Then start over at Step 1.

NO : The procedure is complete.

DTC U0019: Bus off(CAN-B)

CAUTION

• If DTC U0019 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 CAN-B circuit malfunction occurs, the combina-
tion meter sets the DTC U0019.

.

JUDGMENT CRITERIA

If KOS-ECU cannot perform the data transmission in
normal conditions due to a malfunction of the CAN-B
bus circuit, KOS-ECU determines that there is a
problem.

.

TROUBLESHOOTING HINTS

The CAN bus line 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)