Mitsubishi 380. Manual - part 326

 

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Mitsubishi 380. Manual - part 326

 

 

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS

TRACTION CONTROL SYSTEM (TCL)

13C-24

.

CIRCUIT OPERATION

• The TCL automatically goes to ON, when the 

ignition is turned to the "ON" position. To deacti-
vate the TCL, press the TCL switch. To reactivate 
the TCL , press the TCL switch again.

• ABS/TCL-ECU send the illumination signal of 

"TCL OFF" indicator light and TCL work indicator 
light to the combination meter via the CAN com-
munication.

• ABS/TCL-ECU operates the "TCL OFF" indicator 

light and the TCL work indicator light for three 
seconds after the ignition switch is turned "ON" 
position for bulb check.

16DB402A

A-02 (GR)

CONNECTOR: A-02 

A-02 HARNESS CONNECTOR:

17DB046A

C-29

C-101

C-02

C-02 HARNESS

CONNECTOR:

COMPONENT SIDE

C-29 MALE SIDE

CONNECTOR

C-101 HARNESS

CONNECTOR:

COMPONENT SIDE

CONNECTORS: C-02, C-29, C-101

17DB047A

C-215 HARNESS CONNECTOR:

COMPONENT SIDE

CONNECTORS: C-211, C-215

C-211 HARNESS CONNECTOR:

COMPONENT SIDE

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS

TRACTION CONTROL SYSTEM (TCL)

13C-25

NOTE: If you press the TCL switch to deactivate the 
TCL and then keep the TCL switch pressed for about 
10 seconds, an error prevention function will auto-
matically reactivate the TCL. If you then still wish to 
deactivate the TCL, press the TCL switch again to 
deactivate it.

NOTE: If the ABS-8 ECU or the active wheel 
speed sensor are disconnected, or if the wiring is 
an open/ short circuit, the ABS 8 ECU will shut 
off power supply to the respective wheel speed 
sensor. All other wheel speed sensors will oper-
ate normally. To restore the power supply, the 
ignition switch must be turned to the "OFF" posi-
tion then to the "ON" position again.

.

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS

TRACTION CONTROL SYSTEM (TCL)

13C-26

COMMENT

This may be caused by faults in the CAN bus line, 
the combination meter or the ABS/TCL-ECU.

.

TROUBLESHOOTING HINTS

• Malfunction of the combination meter.

• Damaged harness or connector.

• Malfunction of the ABS/TCL-ECU.

DIAGNOSIS

Required Special Tools:

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

• MB991824: V.C.I.

• MB991827: MUT-III USB Cable

• MB991910: MUT-III Main Harness A

STEP 1. Using diagnostic tool MB991958, diagnose the 
CAN bus line.

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. (Refer to 

P.13C-3

).

(2) Turn the ignition switch to the "ON" position.
(3) Diagnose the CAN bus line. (Refer to 

P.13C-3

).

(4) Turn the ignition switch to the "LOCK" (OFF) position.
(5) Disconnect diagnostic tool MB991958.

Q: Is the check result satisfactory?

YES : Go to Step 2
NO :  Repair the CAN bus lines. (Refer to GROUP 54C, 

Diagnosis 

− Can Bus Diagnostic Char

P.54C-15

). 

Then go to Step 4.

00DB076A

MB991910

DATA LINK

CONNECTOR

MB991824

MB991827

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS

TRACTION CONTROL SYSTEM (TCL)

13C-27

STEP 2. Using diagnostic tool MB991958, read the 
diagnostic trouble code.

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. (Refer to 

P.13C-3

).

(2) Turn the ignition switch to the "ON" position.
(3) Use diagnostic tool MB991958 to read the TCL diagnostic 

trouble codes. (Refer to 

P.13C-3

).

(4) Turn the ignition switch to the "LOCK" (OFF) position.
(5) Disconnect diagnostic tool MB991958.

Q: Is any DTC set?

YES : Refer to 

P.13C-8

, Diagnostic Trouble Code Chart. 

Then go to Step 4.

NO :  Go to Step 3.

STEP 3. Using diagnostic tool MB991958, read the 
diagnostic trouble code.

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. (Refer to 

P.17-11

).

(2) Turn the ignition switch to the "ON" position.
(3) Check for Combination meter system diagnostic trouble 

code. (Refer to GROUP 54A, Combination Meter Assembly 
Diagnosis 

− Diagnosis Function − How to Read and Erase 

Diagnostic Trouble Code 

P.54A-46

).

(4) Turn the ignition switch to the "LOCK" (OFF) position.
(5) Disconnect diagnostic tool MB991958.

Q: Is DTC U1102 set?

YES : Replace the hydraulic unit (integrated with 

ABS/TCL-ECU). (Refer to GROUP 35B 

− Hydraulic 

Unit 

P.35B-93

). Then go to Step 4.

NO :  Replace the combination meter assembly. (Refer to 

GROUP 54A 

− Combination Meter Assembly 

P.54A-142

). Then go to Step 4.

00DB076A

MB991910

DATA LINK

CONNECTOR

MB991824

MB991827

00DB076A

MB991910

DATA LINK

CONNECTOR

MB991824

MB991827

 

 

 

 

 

 

 

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