traction control MITSUBISHI 380 2005 User Guide

13C-1
GROUP 13C
TRACTION
CONTROL SYSTEM
(TCL)
CONTENTS
GENERAL DESCRIPTION. . . . . . . . .13C-2
TRACTION CONTROL SYSTEM (TCL)
DIAGNOSIS . . . . . . . . . . . . . . . . . . . .13C-3
INTRODUCTION TO TRACTION CONTROL
SYSTEM (TCL) DIAGNOSIS . . . . . . . . . . . 13C-3
TROUBLESHOOTING STRATEGY . . . . . . 13C-3
DIAGNOSIS FUNCTION. . . . . . . . . . . . . . . 13C-3
DIAGNOSTIC TROUBLE CODE CHART . . 13C-8
DIAGNOSTIC TROUBLE CODE
PROCEDURES . . . . . . . . . . . . . . . . . . . . . . 13C-10
SYMPTOM CHART. . . . . . . . . . . . . . . . . . . 13C-23
SYMPTOM PROCEDURES . . . . . . . . . . . . 13C-23
DATA LIST REFERENCE TABLE . . . . . . . 13C-36
ACTUATOR TEST REFERENCE TABLE. . 13C-37
CHECK AT ABS/TCL-ECU RESISTANCE
AND TERMINAL VOLTAGE . . . . . . . . . . . . 13C-38RESISTANCE AND CONTINUITY
BETWEEN ABS-ECU AND WHEEL SPEED
SENSOR . . . . . . . . . . . . . . . . . . . . . . . . . . . 13C-39
VOLTAGE AND SIGNAL CHECK AT
ABS-ECU USING AN OSCILLOSCOPE . . . 13C-41
SPECIAL TOOLS . . . . . . . . . . . . . . . .13C-45
ON-VEHICLE SERVICE . . . . . . . . . . .13C-47
TCL INDICATOR LIGHT CHECK . . . . . . . . 13C-47
TCL OPERATION CHECK . . . . . . . . . . . . . 13C-47
TCL SWITCH CHECK . . . . . . . . . . . . . . . . . 13C-48
WHEEL SPEED SENSOR CHECK . . . . . . . 13C-48
TCL SWITCH . . . . . . . . . . . . . . . . . . .13C-49
REMOVAL AND INSTALLATION . . . . . . . . 13C-49
WHEEL SPEED SENSOR . . . . . . . . .13C-49
REMOVAL AND INSTALLATION . . . . . . . . 13C-49
ABS/TCL-ECU . . . . . . . . . . . . . . . . . .13C-49
REMOVAL AND INSTALLATION . . . . . . . . 13C-49

GENERAL DESCRIPTION
TRACTION CONTROL SYSTEM (TCL)13C-2
GENERAL DESCRIPTIONM1136000100029
Traction Control systems are a significant safety fea-
ture designed to prevent wheel spin during accelera-
tion. This results in improved vehicle stability and
steer ability. When excessive wheel spin is detected,
the system will automatically reduce engine torque
via the engine management system. The Engine
ECU can reduce throttle position, cut fuel injection
and retard ignition to one or more cylinders depend-ing on how much torque reduction is required and
will continue to occur until the wheels are no longer
spinning. During traction control operation the TCL
warning lamp will flash to inform the driver that the
vehicle is under traction control. This will continue
until traction control is finished.
CONSTRUCTION DIAGRAM
91011
1213141516 12345
678

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS
TRACTION CONTROL SYSTEM (TCL)13C-3
TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS
INTRODUCTION TO TRACTION CONTROL SYSTEM (TCL) DIAGNOSISM1136004600026
TCL Diagnostic Trouble Code Detection
Conditions
TCL diagnostic trouble codes (TCL DTCs) are set
under different conditions, depending on the mal-
function detected. Most TCL DTCs will only be set
during vehicle operation. Some TCL DTCs will also
be set during the TCL self-check immediately after
the engine is started. When you check if an TCL DTC will be displayed again after the DTC has been
erased, you should recreate the TCL DTC set condi-
tions. Depending on the detection timing and set
conditions for the specific TCL DTC, you must either
drive the vehicle or turn the engine off and restart it.
To set the proper conditions for that DTC again, refer
to "TCL DTC SET CONDITIONS" for each TCL DTC
that you are trying to reset.
TROUBLESHOOTING STRATEGYM1136003100062
Use these steps to plan your diagnostic strategy. If
you follow them carefully, you will check most of the
possible causes of a TCL problem.
1. Gather information from the customer.
2. Verify that the condition described by the
customer exists.
3. Check the vehicle for any TCL DTC. (Refer to
P.13C-3, Diagnosis Function
How to Read and
Erase Diagnostic Trouble Codes).
4. If you can verify the condition but no TCL DTCs
are set, and the malfunction may be intermittent.
(Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points
How
to Cope with Intermittent Malfunctions P.00-14).
5. If you can verify the condition but there is no TCL
DTCs, or the system cannot communicate with
diagnostic tool MB991958 (MUT-III sub
assembly), and find the fault. (Refer to P.13C-23,
Symptom Chart).6. If there is a TCL DTC, record the number of the
code, then erase the code from vehicle memory
using the diagnostic tool MB991958 (MUT-III sub
assembly). (Refer to P.13C-3, Diagnosis Function
How to Read and Erase Diagnostic Trouble
Codes).
7. Re-create the TCL DTC set conditions to see if
the same TCL DTC will set again. (Refer to
P.13C-3, Diagnosis Function
How to Read and
Erase Diagnostic Trouble Codes).
If the same TCL DTC sets again, perform the
diagnostic procedures for the set code. (Refer to
P.13C-8, Diagnostic Trouble Code Chart).
NOTE: If the ABS-8 ECU or the active wheel
speed sensor are disconnected, or if the wir-
ing 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 operate normally. To restore the
power supply, the ignition switch must be
turned to the "OFF" position then to the "ON"
position again.
DIAGNOSIS FUNCTIONM1136003200025
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

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS
TRACTION CONTROL SYSTEM (TCL)13C-4
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 special tool MB991824.
5. Connect special tool MB991910 to the data link connector.
6. Turn the power switch of special tool MB991824 to the "ON"
position.
NOTE: When special tool MB991824 is energized, 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 is the
reverse 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: Diagnostic Tool (MUT-III Sub Assembly)
MB991824: V.C.I.
MB991827: MUT-III USB Cable
MB991910: MUT-III Main Harness A
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 "TCL" .
6. Select "Diagnostic Trouble Code".
7. If a DTC is set, it is shown.
8. Choose "DTC erase" to erase the DTC.
9. Turn the ignition switch to the "LOCK" (OFF) position.
10.Disconnect diagnostic tool MB991958.

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS
TRACTION CONTROL SYSTEM (TCL)13C-5
HOW TO READ DATA LIST
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
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 "TCL" .
6. Select "Data List."
7. Choose an appropriate item.
8. Turn the ignition switch to the "LOCK" (OFF) position.
9. Disconnect diagnostic tool MB991958.

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS
TRACTION CONTROL SYSTEM (TCL)13C-6
HOW TO PERFORM ACTUATOR TEST
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
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 "TCL" .
6. Choose "Actuator Test" from "TCL" screen.
7. Choose an appropriate item.
8. Turn the ignition switch to the "LOCK" (OFF) position.
9. Disconnect diagnostic tool MB991958.

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS
TRACTION CONTROL SYSTEM (TCL)13C-7
HOW TO DIAGNOSE THE CAN BUS LINE
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
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 the "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 the information is correct, go to step 8.
If not, go to step 5.
5. Select the "view vehicle information" button.
6. Enter the vehicle information and select the "OK" button.
7. When the vehicle information is displayed, confirm again
that it matches the vehicle which is diagnosed CAN bus line.
If they match, go to step 8.
If not, go to step 5.
8. Press the "OK" button.
9. When the optional equipment screen is displayed, choose
the one which the vehicle is fitted with, and then select the
"OK" button.
10.Turn the ignition switch to the "LOCK" (OFF) position.
11.Disconnect diagnostic tool MB991958.

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS
TRACTION CONTROL SYSTEM (TCL)13C-8
DIAGNOSTIC TROUBLE CODE CHARTM1136003300022
During diagnosis, a DTC associated with other
system may be set when the ignition switch is
turned on with connector(s) disconnected. On
completion, confirm all systems for DTC(s). If
DTC(s) are set, erase them all.
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.Follow the inspection chart that is appropriate for the
diagnostic trouble code.
DTC INSPECTION ITEM DIAGNOSTIC CONTENT REFERENCE PAGE
C1200 Front right wheel speed sensor Open circuit or short circuit GROUP 35B, ABS
Diagnosis

Diagnostic Trouble
Code Procedures
C1200 P.35B-10
C1201 Front right wheel speed sensor Abnormal output signal GROUP 35B, ABS
Diagnosis

Diagnostic Trouble
Code Procedures
C1201 P.35B-26
C1205 Front left wheel speed sensor Open circuit or short circuitGROUP 35B, ABS
Diagnosis

Diagnostic Trouble
Code Procedures
C1205 P.35B-10
C1206 Front left wheel speed sensor Abnormal output signal GROUP 35B, ABS
Diagnosis

Diagnostic Trouble
Code Procedures
C1206 P.35B-26
C1210 Rear right wheel speed sensor Open circuit or short circuitGROUP 35B, ABS
Diagnosis

Diagnostic Trouble
Code Procedures
C1210 P.35B-10
C1211 Rear right wheel speed sensor Abnormal output signal GROUP 35B, ABS
Diagnosis

Diagnostic Trouble
Code Procedures
C1211 P.35B-26
C1215 Rear left wheel speed sensor Open circuit or short circuit GROUP 35B, ABS
Diagnosis

Diagnostic Trouble
Code Procedures
C1215 P.35B-10

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS
TRACTION CONTROL SYSTEM (TCL)13C-9
C1216 Rear left wheel speed sensor Abnormal output signal GROUP 35B, ABS
Diagnosis

Diagnostic Trouble
Code Procedures
C1216 P.35B-26
C1225 Deviation between wheel speeds
P.35B-40 or refer to
the above appropriate
abnormal output
sensor signalP.35B-26
C1226* ABS front right solenoid inlet valve -
C1231* ABS front right solenoid outlet valve -
C1236* ABS front left solenoid valve inlet valve -
C1241* ABS front left solenoid valve outlet valve -
C1246* ABS rear right solenoid valve inlet valve -
C1251* ABS rear right solenoid valve outlet valve -
C1256* ABS rear left solenoid valve inlet valve -
C1261* ABS rear left solenoid valve outlet valve -
C1266* ABS hydraulic unit motor stuck -
C1273* ABS hydraulic unit motor drive circuit stuck off -
C1274* ABS hydraulic unit motor drive circuit stuck on -
C1276* ABS valve relay malfunction -
C1278* ABS solenoid valve power circuit stuck off -
C1279* ABS solenoid valve power circuit stuck on -
C1607 ABS/TCL-ECU failure GROUP 35B, ABS
Diagnosis

Diagnostic Trouble
Code Procedures
C1607 P.35B-62
C1640 Variant code value not valid. (TCL only) Incorrect code
programmed into
ABS-ECU. Replace
ABS-ECU modulator.
C1860 ABS/TCL-ECU power supply Abnormal rise in voltage GROUP 35B, ABS
Diagnosis

Diagnostic Trouble
Code Procedures
C1860 P.35B-63
C1861 ABS/TCL-ECU power supply Abnormal drop in voltage GROUP 35B, ABS
Diagnosis

Diagnostic Trouble
Code Procedures
C1861 P.35B-63 DTC INSPECTION ITEM DIAGNOSTIC CONTENT REFERENCE PAGE

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS
TRACTION CONTROL SYSTEM (TCL)13C-10
NOTE: Since the TCL is controlled with the same ABS/TCL-ECU used to control the ABS, the codes (with a
*) used only for the ABS also appear.
The inspection contents for the codes (with a *) used only for the ABS do not described in this group.
DIAGNOSTIC TROUBLE CODE PROCEDURES
U1100 CAN Communications System Time Out Error Engine Related Data
If DTC U1100 is set in the ABS/TCL-ECU,
always diagnose the CAN main bus line. If
there is any fault in the CAN bus lines, an
incorrect DTC may be set.
Whenever the ABS/TCL-ECU is replaced,
ensure that the communication circuit is nor-
mal.
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.
.
DTC SET CONDITION
The ABS/TCL-ECU receives engine system-related
signals from the ENGINE-ECU via CAN bus lines.
.
TROUBLESHOOTING HINTS (THE MOST
LIKELY CAUSES FOR THESE DTCS ARE
TO SET ARE:)
Damaged harness or connector.
Malfunction of the ENGINE-ECU.
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 U1073 CAN communications system bus off GROUP 35B, ABS
Diagnosis

Diagnostic Trouble
Code Procedures
U1073 P.35B-68
U1100 CAN communications system time out error engine related data
P.13C-10
U1101 CAN communications system time out error A/T related data
P.13C-14
U1400 Dynamic range error APS1
P.13C-22
U1415 CAN invalid signal Gear Position GROUP 23A
Diagnostic Trouble
Code Chart P.23A-34 DTC INSPECTION ITEM DIAGNOSTIC CONTENT REFERENCE PAGE