Mitsubishi 380. Manual - part 945

 

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Mitsubishi 380. Manual - part 945

 

 

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-5

5. If you can verify the condition but there are no 

ABS DTCs, or the system cannot communicate 
with the diagnostic tool, check that the basic 
brake system is operating properly.

• If the basic brake system is not operating prop-

erly, refer to the GROUP 35A, Basic Brake Sys-
tem Diagnosis 

P.35A-3

.

• If the basic brake system is operating properly, 

refer to 

P.35B-71

.

6. If there is an ABS DTC, record the number of the 

DTC, then erase the DTC from the memory using 
the diagnostic tool.

NOTE: Any DTCs stored in the ABS-ECU cannot 
be erased if there is a malfunction.   

7. Duplicate the ABS DTC set conditions to see if the 

same ABS DTC will set again.

• If the same ABS DTC sets again or the ABS DTC 

cannot be erased, perform the diagnostic proce-
dures for the DTC. Refer to 

P.35B-9

.

• If you cannot get the same ABS DTC to set 

again, the malfunction is intermittent. Refer to 
GROUP 00, How to use Troubleshooting/Inspec-
tion Service Points 

− How to Cope with Intermit-

tent Malfunctions 

P.00-14

.

DIAGNOSTIC FUNCTION

M1352011200596

ON-BOARD DIAGNOSTICS (OBD)

If the ABS-ECU detects any problem in the CAN 
communication line or the ECUs, which the 
ABS-ECU is communicating with, it stores a diagnos-
tic trouble code. The DTCs have 9 items. The DTCs 
can be confirmed by connecting diagnostic tool 

MB991958 (MUT-III sub assembly.) The stored 
DTCs are not erased even after the ignition switch 
has been turned to the LOCK (OFF) position, or the 
battery has been disconnected. The DTCs can be 
erased by operating diagnostic tool MB991958 
(MUT-III sub assembly.)

HOW TO CONNECT THE DIAGNOSTIC TOOL 
(MUT-III)

Required Special Tools:

•  MB991958: Diagnostic Tool (MUT-III Sub Assembly)

• MB991824: Vehicle Communication Interface (V.C.I.)

• MB991827: MUT-III USB Cable

• MB991910: MUT-III Main Harness A

CAUTION

To prevent damage to diagnostic tool MB991958, always 
turn the ignition switch to the "LOCK" (OFF) position 
before connecting or disconnecting diagnostic 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 MUT-III system on the personal computer.

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

00DB076A

MB991910

DATA LINK

CONNECTOR

MB991824

MB991827

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-6

HOW TO READ AND ERASE DIAGNOSTIC 
TROUBLE CODES

Required Special Tools:

•  MB991958: Diagnostic Tool (MUT-III Sub Assembly)

• MB991824: Vehicle Communication Interface (V.C.I.)

• MB991827: MUT-III USB Cable

• MB991910: MUT-III Main Harness A

CAUTION

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

NOTE: If the battery voltage is low, diagnostic trouble codes will 
not be set. Check the battery if diagnostic tool MB991958 does 
not display.
1. Connect diagnostic tool MB991958 to the data link 

connector.

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

3. Select "Interactive Diagnosis" from the start-up screen.

4. Select "System Select."

5. Choose "ABS" .

6. Select "Diagnostic Trouble Code."

7. If a DTC is set, it is shown.

8. Choose "DTC erase" to erase the DTC.

HOW TO READ DATA LIST

Required Special Tools:

•  MB991958: Diagnostic Tool (MUT-III Sub Assembly)

• MB991824: Vehicle Communication Interface (V.C.I.)

• MB991827: MUT-III USB Cable

• MB991910: MUT-III Main Harness A

00DB076A

MB991910

DATA LINK

CONNECTOR

MB991824

MB991827

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-7

CAUTION

To prevent damage to diagnostic tool MB991958, always 
turn the ignition switch to the "LOCK" (OFF) position 
before connecting or disconnecting diagnostic tool 
MB991958.
1. Connect diagnostic tool MB991958 to the data link 

connector.

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

3. Select "Interactive Diagnosis" from the start-up screen.

4. Select "System Select."

5. Choose "ABS" .

6. Select "Data List."

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

HOW TO PERFORM ACTUATOR TEST

Required Special Tools:

•  MB991958: Diagnostic Tool (MUT-III Sub Assembly)

• MB991824: Vehicle Communication Interface (V.C.I.)

• MB991827: MUT-III USB Cable

• MB991910: MUT-III Main Harness A

CAUTION

To prevent damage to diagnostic tool MB991958, always 
turn the ignition switch to the "LOCK" (OFF) position 
before connecting or disconnecting diagnostic tool 
MB991958.
1. Connect diagnostic tool MB991958 to the data link 

connector.

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

3. Select "Interactive Diagnosis" from the start-up screen.

4. Select "System Select."

5. Choose "ABS" .

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

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

00DB076A

MB991910

DATA LINK

CONNECTOR

MB991824

MB991827

00DB076A

MB991910

DATA LINK

CONNECTOR

MB991824

MB991827

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-8

HOW TO DIAGNOSE THE CAN BUS LINE

Required Special Tools:

•  MB991958: Diagnostic Tool (MUT-III Sub Assembly)

• MB991824: Vehicle Communication Interface (V.C.I.)

• MB991827: MUT-III USB Cable

• MB991910: MUT-III Main Harness A

CAUTION

To prevent damage to diagnostic tool MB991958, always 
turn the ignition switch to the "LOCK" (OFF) position 
before connecting or disconnecting diagnostic tool 
MB991958.
1. Connect diagnostic tool MB991958 to the data link 

connector.

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

3. Select "CAN bus diagnosis" from the start-up screen.

4. When the vehicle information is displayed, confirm that it 

matches the vehicle whose CAN bus lines will be 
diagnosed.

• If they match, go to step 8.

• If not, go to step 5.

5. Select "view vehicle information" button.

6. When the vehicle information is displayed, confirm again 

that it matches the vehicle which is being diagnosed.

• If they match, go to step 8.

• If not, go to step 5.

7. Press the "OK" button.

8. When the options are displayed, choose the options (mark 

the check) and then select "OK".

00DB076A

MB991910

DATA LINK

CONNECTOR

MB991824

MB991827

 

 

 

 

 

 

 

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