Mitsubishi Outlander XL. Manual - part 690

 

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Mitsubishi Outlander XL. Manual - part 690

 

 

Q:Is the check result normal?

YES:

 Troubleshoot the combination meter, and then go to

Step 4.

NO:

 Go to Step 4.

STEP 4. Retest the system.

Q:Does the ABS warning light turn ON and OFF normally?

YES:

 The procedure is complete.

NO:

 Return to Step 1.

Inspection Procedure 5: Brake Warning Light does not Illuminate when the Ignition
Switch is Turned to ON Position (Engine Stopped).

M13506100088USA0000010000

CIRCUIT OPERATION
ASC-ECU  sends  the  illumination  request  signal  of  the  break
warning light to the combination meter through ETACS-ECU via
the CAN communication.

TECHNICAL DESCRIPTION (COMMENT)
This may be caused by faults in the CAN bus line, ETACS-ECU,
combination meter or ASC-ECU.

PROBABLE CAUSES

Damaged wiring harness and connectors

Malfunction of ETACS-ECU

Combination meter malfunction

ASC-ECU 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

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.)

STEP 2. M.U.T.-III diagnostic trouble code
Use scan tool to check the diagnostic trouble code for the ASC
system.

Q:Is the diagnostic trouble code set?

ACTIVE SKID CONTROL SYSTEM (ASC)

35C-167

DIAGNOSIS

YES:

 Carry out the diagnosis for the diagnostic trouble

code. (Refer to P.35C-11.)

NO:

 Go to Step 3.

STEP 3. Retest the system.

Q:Does the brake warning light turn ON and OFF normally?

YES:

 The procedure is complete.

NO:

 Return to Step 1.

Inspection Procedure 6: ABS Warning Light Stays ON.

M13506100089USA0000010000

SYSTEM OPERATION

ASC-ECU  sends  the  illumination  request  signal  of  the  ABS
warning light to the combination meter through ETACS-ECU
via CAN communication.

ASC-ECU illuminates the ABS warning light via ETACS-ECU
for approximately 3 seconds for valve check with the ignition
switch turned to the ON position.

The ASC-ECU turns off the ABS warning light if an ABS error
is  not  detected  after  illuminating  the  ABS  warning  light  for
approximately 3 seconds.

TECHNICAL DESCRIPTION (COMMENT)
This may be caused by faults in the CAN bus line, ETACS-ECU,
combination meter or ASC-ECU.

PROBABLE CAUSES

Damaged wiring harness and connectors

Malfunction of ETACS-ECU

Combination meter malfunction

ASC-ECU 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

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.)

35C-168

ACTIVE SKID CONTROL SYSTEM (ASC)

DIAGNOSIS

STEP 2. M.U.T.-III diagnostic trouble code
Use scan tool to check the diagnostic trouble code for the ASC
system.

Q:Is the diagnostic trouble code set?

YES:

 Carry out the diagnosis for the diagnostic trouble

code. (Refer to P.35C-11.)

NO:

 Go to Step 3.

STEP 3. M.U.T.-III other system diagnostic trouble code
Using scan tool, check that the diagnostic trouble code U0141
is not set by the combination meter system.

Q:Is any DTC set?

YES:

 Troubleshoot the combination meter, and then go to

Step 5.

NO:

 Go to Step 4.

STEP 4. M.U.T.-III other system diagnostic trouble code
Using scan tool, check that the diagnostic trouble code U0121
is not set by the ETACS system.

Q:Is any DTC set?

YES:

 Troubleshoot the ETACS, and then go to Step 5.

NO:

 Replace the ASC-ECU, and then go to Step 5.

STEP 5. Retest the system.

Q:Does the ABS warning light turn ON and OFF normally?

YES:

 The procedure is complete.

NO:

 Return to Step 1.

Inspection Procedure 7: ASC Indicator Light Stays ON.

M13506100090USA0000010000

SYSTEM OPERATION
ASC-ECU  sends  the  illumination  request  signal  of  the  ASC
indicator light to the combination meter through ETACS-ECU via
the CAN communication.

TECHNICAL DESCRIPTION (COMMENT)
This may be caused by faults in the CAN bus line, ETACS-ECU,
combination meter or ASC-ECU.

PROBABLE CAUSES

Damaged wiring harness and connectors

Malfunction of ETACS-ECU

Combination meter malfunction

ASC-ECU malfunction

ACTIVE SKID CONTROL SYSTEM (ASC)

35C-169

DIAGNOSIS

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.)

STEP 2. M.U.T.-III diagnostic trouble code
Use scan tool to check the diagnostic trouble code for the ASC
system.

Q:Is any DTC set?

YES:

 Carry out the diagnosis for the diagnostic trouble

code. (Refer to P.35C-11.)

NO:

 Go to Step 3.

STEP 3. M.U.T.-III other system diagnostic trouble code
Using scan tool, check that the diagnostic trouble code U0141
is not set by the combination meter system.

Q:Is any DTC set?

YES:

 Troubleshoot the combination meter, and then go to

Step 5.

NO:

 Go to Step 4.

STEP 4. M.U.T.-III other system diagnostic trouble code
Using scan tool, check that the diagnostic trouble code U0121
is not set by the ETACS system.

Q:Is any DTC set?

YES:

 Troubleshoot the ETACS, and then go to Step 5.

NO:

 Replace the ASC-ECU, and then go to Step 5.

STEP 5. Retest the system.

Q:Does the ASC indicator light turn ON and OFF normally?

YES:

 The procedure is complete.

NO:

 Return to Step 1.

Inspection Procedure 8: ASC-OFF Indicator Light Stays ON.

M13506100091USA0000010000

SYSTEM OPERATION
ASC-ECU sends the illumination request signal of the ASC OFF
indicator light to the combination meter through ETACS-ECU via
CAN communication.

35C-170

ACTIVE SKID CONTROL SYSTEM (ASC)

DIAGNOSIS

 

 

 

 

 

 

 

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