Mitsubishi Outlander XL. Manual - part 639

Q:Is the check result normal?

YES:

 Go to Step 2.

NO:

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

Bus Diagnostics table P.54D-17.) On completion, go to
Step 4.

STEP 2. M.U.T.-III other system diagnostic trouble code
Use scan tool to check that other diagnostic trouble code is set
in the ECU corresponding to the relevant diagnosis.

Q:Is other DTC set?

YES:

 Troubleshoot for the relevant diagnostic trouble

code.

NO:

 Go to Step 3.

STEP 3. M.U.T.-III diagnostic trouble code
Use scan tool to check that the diagnostic trouble code is set in
ABS-ECU.

Q:Is any DTC set?

YES (DTC U0100 is set):

 Replace the engine ECU, and then

go to Step 4.

YES (DTC U0114 is set):

 Replace AWD-ECU, and then go to

Step 4.

YES (DTC U0141 is set):

 Replace the ETACS-ECU, and then

go to Step 4.

NO (No DTC is set.):

 The procedure is complete.

STEP 4. Check whether the diagnostic trouble code is reset.

Q:Is DTC U0100, U0114 or U0141 set?

YES:

 Replace the ABS-ECU.

NO:

 The procedure is complete.

DTC U1415: Variant coding not implemented

M13502000950USA0000010000

When the diagnostic trouble code U1415 is set in ABS-ECU,
the diagnostic trouble code may also be set in ETACS-ECU.
When  the  diagnostic  Trouble  code  is  set  in  ETACS-ECU,
carry out the diagnosis of the diagnostic Trouble code for
ETACS-ECU first.

CIRCUIT OPERATION

｠

ABS-ECU  receives  the  vehicle  information  stored  in  the
ETACS-ECU via CAN bus lines.

｠

The ABS-ECU stores the tire size information sent from the
ETACS.

DTC SET CONDITIONS
This diagnostic trouble code is set when the tire size information
is not coded to the ABS-ECU.

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-119

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

PROBABLE CAUSES

｠

Variant coding for ETACS-ECU has not been implemented.

｠

Malfunction of ABS-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:

 Go to Step 2.

NO:

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

Bus Diagnostics table P.54D-17.) On completion, go to
Step 4.

STEP 2. M.U.T.-III other system diagnostic Trouble code
Use scan tool to check that the diagnostic trouble code B222C
is set in the ETACS-ECU.

Q:Is any DTC set?

YES:

 Troubleshoot the relevant diagnostic Trouble code,

and then go to Step 4.

NO:

 Go to Step 3.

STEP 3. Check whether the diagnostic Trouble code is
reset.

Q:Is DTC U1415 set?

YES:

 Replace the ABS-ECU. Go to Step 4.

NO:

 If the trouble symptom is resolved, an intermittent

malfunction such as poorly engaged connector(s) or wiring
harness is suspected. (Refer to GROUP 00 - How to Cope
with Intermittent Malfunction P.00-15.)

STEP 4. Check whether the diagnostic Trouble code is
reset.

Q:Is DTC U1415 set?

YES:

 Return to Step 1.

NO:

 The procedure is complete.

35B-120

ANTI-LOCK BRAKING SYSTEM (ABS)

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

DTC U1417: Variant coding value invalid (includes faulty installation)

M13502000951USA0000010000

｠

If  diagnostic  trouble  code  U1417  is  set  in  ABS-ECU,
always diagnose the CAN bus lines. If there is any fault in
the CAN bus lines, an incorrect diagnostic trouble code
may be set. In this case, the set diagnostic trouble code
is not highly reliable.

｠

Before replacing the ECU, ensure that the communication
circuit is normal.

｠

When the diagnostic trouble code U1417 is set in ABS-
ECU,  the  diagnostic  trouble  code  may  also  be  set  in
ETACS-ECU. When the diagnostic trouble code is set in
ETACS-ECU,  carry  out  the  diagnosis  of  the  diagnostic
trouble code for ETACS-ECU first.

CIRCUIT OPERATION
ABS-ECU receives the vehicle information stored in the ETACS-
ECU via CAN bus lines.

DTC SET CONDITIONS
ABS-ECU communicates with ETACS-ECU via CAN bus lines.
This  diagnostic  trouble  code  is  set  when  there  is  difference
between the vehicle information from the ETACS-ECU and the
vehicle information stored in the ABS-ECU.

PROBABLE CAUSES

｠

Malfunction of ETACS-ECU

｠

Engine ECU malfunction

｠

ETACS-ECUs have been interchanged between two vehicles.

｠

ABS-ECU malfunction

｠

External noise interference

｠

ABS-ECUs have been interchanged between two vehicles.

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:

 Go to Step 3.

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-121

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

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 U1417 set?

YES:

 Go to Step 3.

NO:

 The procedure is complete.

STEP 3. M.U.T.-III other system diagnostic trouble code
Use  scan  tool  to  check  whether  the  ETACS-ECU-related  or
engine ECU-related diagnostic trouble code is set or not.

Q:Is any DTC set?

YES:

 Troubleshoot for the relevant diagnostic trouble

code.

NO:

 Go to Step 4.

STEP 4. Check part number of ETACS-ECU
Check the part number of ETACS-ECU.

OK: 8637A213

Q:Is the check result normal?

YES:

 Go to Step 5.

NO:

 Replace ETACS-ECU.

STEP 5. Check part number of ABS-ECU
Check the part number of ABS-ECU.

OK:

4670A037 (FWD)
4670A050 (AWD)

Q:Is the check result normal?

YES:

 Go to Step 6.

NO:

 Replace the ABS-ECU.

STEP 6. Check whether the diagnostic trouble code is reset.

Q:Is DTC U1417 set?

YES:

 Replace the ABS-ECU.

NO:

 The procedure is complete.

SYMPTOM CHART

M13502000114USA0000010000

｠

ABS  may  operate  in  the  following  conditions
without  hard  braking:  Slippery  road  surface,
high-speed  turn,  and  bumpy  road  surface.
When asking the customers, confirm that they
have/have  not  encountered  ABS  operation  in
corresponding conditions.

｠

During ABS operation, the brake pedal is pulled
forward gradually, and the noise occurs at the
same  time.  This  is  because  the  brake  line

pressure  varies  intermittently  to  prevent  the
wheel lock, and not a system malfunction.

｠

During  diagnosis,  a  diagnostic  trouble  code
associated with other system may be set when
the ignition switch is turned on with connector
(s)  disconnected.  On  completion,  confirm  all
systems  for  diagnostic  trouble  code(s).  If
diagnostic trouble code(s) are set, erase them
all.

35B-122

ANTI-LOCK BRAKING SYSTEM (ABS)

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS