Mitsubishi Outlander XL. Manual — part 785

TPMS DTC SET CONDITION
When the voltage of the battery incorporated into the TPMS
transmitter becomes low, this code is set.

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

｠

Malfunction of TPMS transmitter

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. M.U.T.-III CAN bus diagnostics
Use scan tool to diagnose the CAN bus lines.

Q:Is the check result normal?

YES:

Check the registered ID by the transmitter ID check

function, and detect the wheel to which the DTC is set by
the transmitter check function. Then, replace the TPMS
transmitter, and register the ID codes. (refer to P.
42B-12.) Then go to Step 3.

NO:

Repair the CAN bus lines. (Refer to GROUP 54D - CAN

Bus Diagnostics table P.54D-17.) On completion, go to
Step 2.

STEP 2. Diagnostic trouble code recheck after resetting
CAN bus lines

(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 the diagnostic trouble code C1910, C1920, C1930 or

C1940 set?

YES:

Start over at Step 1.

NO:

The procedure is complete.

STEP 3. 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 diagnostic trouble code C1910, C1920, C1930 or

C1940 set?

YES:

Replace the KOS-ECU and register the ID codes.

(refer to P.42B-12.) Then start over at Step 1.

NO:

The procedure is complete.

KEYLESS OPERATION SYSTEM (KOS)

42B-83

DIAGNOSIS

DTC C1911: Reception Abnormality 1
DTC C1921: Reception Abnormality 2
DTC C1931: Reception Abnormality 3
DTC C1941: Reception Abnormality 4

M14209100155USA0000010000

If there is any problem in the CAN bus lines, an incorrect
diagnostic trouble code may be set. Prior to this diagnosis,
diagnose the CAN bus lines. (Refer to GROUP 54D, Trouble
code diagnosis P.54D-17).

TPMS DTC SET CONDITION
When KOS-ECU cannot receive the signal from the TPMS
transmitter normally, this code is set.

TROUBLESHOOTING HINTS
The most likely causes for this DTC to set are:

｠

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. M.U.T.-III CAN bus diagnostics
Use scan tool to diagnose the CAN bus lines.

Q:Is the check result normal?

YES:

Check the registered ID by the transmitter ID check

function, and detect the wheel to which the DTC is set by
the transmitter check function. Then, replace the TPMS
transmitter, and register the ID codes. (Refer to P.
42B-12.) If the ID code of replaced TPMS transmitter
cannot be registered, replace the KOS-ECU and register
the ID code. Then go to Step 3.

NO:

Repair the CAN bus lines. (Refer to GROUP 54D - CAN

Bus Diagnostics table P.54D-17.) On completion, go to
Step 2.

STEP 2. Diagnostic trouble code recheck after resetting
CAN bus lines

(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.

42B-84

KEYLESS OPERATION SYSTEM (KOS)

DIAGNOSIS

Q:Is the diagnostic trouble code C1911, C1921, C1931 or

C1941 set?

YES:

Start over at Step 1.

NO:

The procedure is complete.

STEP 3. 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 diagnostic trouble code C1911, C1921, C1931 or

C1941 set?

YES:

Replace the KOS-ECU and register the ID codes.

(refer to P.42B-12.) Then start over at Step 1.

NO:

The procedure is complete.

DTC C1912: Tire Inflation pressure Warning 1
DTC C1922: Tire Inflation pressure Warning 2
DTC C1932: Tire Inflation pressure Warning 3
DTC C1942: Tire Inflation pressure Warning 4

M14209100156USA0000010000

If there is any problem in the CAN bus lines, an incorrect
diagnostic trouble code may be set. Prior to this diagnosis,
diagnose the CAN bus lines. (Refer to GROUP 54D, Trouble
code diagnosis P.54D-17).

TPMS DTC SET CONDITION
When the tire pressure becomes lower than the specified value,
the TPMS transmitter sends the signal to KOS-ECU, and then
KOS-ECU sets this code.

TROUBLESHOOTING HINTS
The most likely causes for this DTC to set is:

｠

Drop of the tire pressure

｠

Loose TPMS transmitter mounting nut

｠

Flat tire

｠

TPMS transmitter malfunction

｠

KOS-ECU malfunction

｠

CAN-bus line malfunction

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

KEYLESS OPERATION SYSTEM (KOS)

42B-85

DIAGNOSIS

｠

MB991910: M.U.T.-III Main Harness A

STEP 1. M.U.T.-III CAN bus diagnostics
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 54D - CAN

Bus Diagnostics table P.54D-17.) On completion, go to
Step 2.

STEP 2. Diagnostic trouble code recheck after resetting
CAN bus lines

Q:Is DTC C1912, C1922, C1932 or C1942 set?

YES:

Go to Step 3.

NO:

The procedure is complete.

STEP 3. Tire pressure check
Check that the pressure of the tire corresponds to the set DTC
is normal.

Q:Is the check result normal?

YES:

Go to Step 5.

NO:

Go to Step 4.

STEP 4. Tire check
Check that there is no abnormality for the items below.

｠

Flat tire

｠

Cracked tire

｠

Air leak from valve

｠

Loose TPMS transmitter mounting nut (Refer to P.42C-99.)

Q:Is the check result normal?

YES:

Go to Step 5.

NO:

Replace it. Then go to Step 7.

STEP 5. Tire pressure check by M.U.T.-III

(1)

Check the registered ID code by the transmitter ID check
function.

(2)

Check the wheel to which the DTC is set by the transmitter
check function.

(3)

Using the M.U.T.-III, check the relevant tire pressure.

(4)

Using the tire pressure gauge, check the tire pressure at the
air valve of relevant tire. Then, measure the difference
between that checked tire pressure and the tire pressure
displayed at the procedure (3).

OK: 20 kPa or less

Q:Is the check result normal?

YES:

Go to Step 6.

NO:

Replace the TPMS transmitter and register the ID

codes. (refer to P.42C-8.) Then go to Step 7.

STEP 6. Tire pressure check by M.U.T.-III

(1)

Check the registered ID code by the transmitter ID check
function.

(2)

Check the wheel to which the DTC is set by the transmitter
check function.

42B-86

KEYLESS OPERATION SYSTEM (KOS)

DIAGNOSIS