Mitsubishi Outlander: Diagnosis Function

ABS-ECU has the following functions for easier system checks. The following items can be diagnosed using scan tool.

• Diagnostic trouble code set
• Service data output
• Actuator test
• Freeze frame data output

CHECK OF FREEZE FRAME DATA

The freeze frame data can be checked by using the scan tool.

When detecting fault and storing the DTC, the ECU connected to CAN bus line obtains the data before the determination of the DTC and the data when the DTC is determined, and then stores the ECU status of that time. By analysing each data from scan tool, the troubleshooting can be performed more efficiently.

The displayed items are as the table below.

Display item list

FAIL-SAFE FUNCTION

If any malfunction is detected by the self-diagnostic function, ABS-ECU illuminates the ABS warning light and brake warning light*, and it disables ABS and EBD control.

NOTE: *: The brake warning light and display are used as EBD control warning light.

Illumination condition of warning light and display in case of failure

NOTE:

• *1 This DTC is not set within the vehicle speed of 12 mph (20 km/h) or less.
• *2 Turns ON when two or more wheels are faulty.
• *3 Stays ON until the vehicle speed reaches 6 mph (10 km/h) when the ignition switch is turned to ON next time, even if the malfunction is repaired and returns to normal condition.
• *4 May not illuminate depending on the trouble cause.

Under EBD and ABS control in case of failure

NOTE:

• *1 This DTC is not set within the vehicle speed of 12 mph (20 km/h) or less.
• *2: Prohibited when two or more wheels are faulty.
• *3: Not prohibited when the brake warning lamp is not illuminated.

HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)

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

CAUTION

To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.

1. Ensure that the ignition switch is at the "LOCK" (OFF) position.

2. Start up the personal computer.

3. Connect special tool MB991827 to special tool MB991824 and the personal computer.

4. Connect special tool MB991910 to the special tool MB991824.

5. Connect special tool MB991910 to the data link connector.

6. Turn the power switch special tool MB991824 to the "ON" position.

NOTE: When the special tool MB991824 is energized, the special tool MB991824 indicator light will be illuminated in a green color.

7. Start the M.U.T.-III system on the personal computer.

NOTE: Disconnect the scan tool MB991958 in the reverse order of the connecting sequence, making sure that the ignition switch is at the "LOCK" (OFF) position.

HOW TO READ AND ERASE DIAGNOSTIC TROUBLE CODES

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

CAUTION To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.

NOTE: If the battery voltage is low, DTCs will not be set. Check the battery if scan tool MB991958 does not display.

1. Connect scan tool MB991958 to the data link connector.

2. Turn the ignition switch to the "ON" position.

3. Select "System Select".

4. Select "ABS/ASC/ASTC" from the system list, and select the "OK" button.

5. Select "Diagnostic Trouble Code" to read the DTC.

6. If a DTC is set, it is shown.

7. Choose "DTC erase" to erase the DTC.

HOW TO READ DATA LIST

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

CAUTION To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.

1. Connect scan tool MB991958 to the data link connector.

2. Turn the ignition switch to the "ON" position.

3. Select "System Select".

4. Select "ABS/ASC/ASTC" from the system list, and select the "OK" button.

5. Select "Data List".

HOW TO PERFORM ACTUATOR TEST

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

CAUTION To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.

1. Connect scan tool MB991958 to the data link connector.

2. Turn the ignition switch to the "ON" position.

3. Select "System Select".

4. Select "ABS/ASC/ASTC" from the system list, and select the "OK" button.

5. Choose "Actuator Test" from "ABS" screen.

6. Choose an appropriate item and select the "OK" button.

DIAGNOSTIC TROUBLE CODE CHART

CAUTION

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

NOTE:

• *: This DTC is not set within the vehicle speed of 12 mph (20 km/h) or less.

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