Mitsubishi Eclipse / Eclipse Spyder (2000-2002). Service and repair manual — part 599

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS

TSB Revision

TRACTION CONTROL SYSTEM (TCL)

35C-31

STEP 2. Check the harness wire between the ABS-ECU
connector A-02 and the combination meter connector C-
41.
NOTE: After inspecting the intermediate connector C-94,
inspect the wire. If the intermediate connector C-94 is
damaged, repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection

P.00E-2

. If the connector has been

repaired or replaced, go to Step 3 .

Q: Is the harness wire between the ABS-ECU connector A-

02 and the combination meter connector C-41
damaged?
YES : Repair it and then go to Step 3.
NO : Go to Step 3.

STEP 3. Check symptom.

Q: Does the TCL indicator light turn off 3 seconds after

start-up?
YES : This diagnosis is complete.
NO : Return to Step 1.

AC001985

CONNECTOR: A-02

AD

AC004482 AB

CONNECTOR: C-41

COMBINATION METER

AC003604 AB

CONNECTOR: C-94

CONNECTOR
BLOCK (RH)

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS

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TRACTION CONTROL SYSTEM (TCL)

35C-32

INSPECTION PROCEDURE 5: The TCL Warning Light Remains Illuminated after the Engine is
Started.

NOTE: This diagnosis procedure is limited to cases where communication with the scan tool is possible
(ABS-ECU power supply is normal) and no diagnostic trouble code outputs.

NOTE: CONNECTOR LOCK SWITCH
ON: The ABS-ECU connector A-02 is connected.

OFF: The ABS-ECU connector A-02 is disconnected.

TCL Warning Light and TCL Indicator Light Circuit

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS

TSB Revision

TRACTION CONTROL SYSTEM (TCL)

35C-33

CIRCUIT OPERATION

•

The ABS-ECU controls the illumination of the
TCL warning light by turning it "ON" and "OFF."

•

The ABS-ECU illuminates the TCL warning light
for three seconds on start-up <ignition key: "ON"
(with engine stopped)>. When the ABS-ECU
completes the self-check, it turns off the light.

TECHNICAL DESCRIPTION (COMMENT)
The cause is probably hydraulic unit (integrated with
ABS-ECU) malfunction.

TROUBLESHOOTING HINTS (The most likely
causes for this case:)

•

Damaged wiring harness or connector

•

Malfunction of the hydraulic unit (integrated with
ABS-ECU)

DIAGNOSIS

Required Special Tool:

•

MB991223: Harness Set

STEP 1. Check the TCL warning light circuit at the ABS-
ECU connector A-02.
(1) Disconnect the ABS-ECU connector A-02.
(2) Turn the ignition switch to the "ON" position.

Q: Does the TCL warning light illuminate?

YES : Go to Step 2.
NO : Replace the hydraulic unit (integrated with ABS-ECU)

(Refer to GROUP 35B, Hydraulic Unit

P.35B-51

.) and

then go to Step 3.

AC001985

CONNECTOR: A-02

AD

AC004428 AB

CONNECTORS: C-41, C-42

C-41

C-42

COMBINATION
METER

AC003604 AB

CONNECTOR: C-94

CONNECTOR
BLOCK (RH)

AC004411AB

CONNECTORS: C-101, C-104

C-104

C-101

AC001985

CONNECTOR: A-02

AD

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS

TSB Revision

TRACTION CONTROL SYSTEM (TCL)

35C-34

STEP 2. Check the harness wire between the ABS-ECU
connector A-02 and the combination meter connector C-
41.
NOTE: After inspecting the intermediate connector C-94,
inspect the wire. If the intermediate connector C-94 is
damaged, repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection

P.00E-2

. If the connector has been

repaired or replaced, go to Step 3.

Q: Is the harness wire between the ABS-ECU connector A-

02 and the combination meter connector C-41
damaged?
YES : Repair it and then go to Step 3.
NO : Go to Step 3.

STEP 3. Check symptoms.

Q: Does the TCL warning light turn off 3 seconds after

start-up?
YES : This diagnosis is complete.
NO : Return to Step 1.

AC001985

CONNECTOR: A-02

AD

AC004482 AB

CONNECTOR: C-41

COMBINATION METER

AC003604 AB

CONNECTOR: C-94

CONNECTOR
BLOCK (RH)