Mitsubishi 380. Manual - part 322

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS

TRACTION CONTROL SYSTEM (TCL)

13C-8

DIAGNOSTIC TROUBLE CODE CHART

M1136003300022

CAUTION

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 circuit

GROUP 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 circuit

GROUP 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 signal

P.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

CAUTION

• 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.

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

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS

TRACTION CONTROL SYSTEM (TCL)

13C-11

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 CAN bus line found to be normal?

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

Diagnosis

− Can Bus Diagnostic Chart

P.54C-15

Then go to Step 6.

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