Mitsubishi Eclipse / Eclipse Spyder (2000-2002). Service and repair manual — part 595

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS

TSB Revision

TRACTION CONTROL SYSTEM (TCL)

35C-15

STEP 3. Check the harness wires between the ABS-ECU
connector A-02 and the data link connector C-29.
NOTE: After inspecting the intermediate connector C-77 or C-
94, inspect the wires. If the intermediate connector C-77 or 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 4.

Q: Is any of the harness wires between the ABS-ECU

connector A-02 and the data link connector C-29
damaged?
YES : Repair it and go to Step 5.
NO : Go to Step 4.

AC001985

CONNECTOR: A-02

AD

AC004429AB

CONNECTOR: C-29

COMBINATION METER

AC004427AB

CONNECTOR: C-77

COMBINATION
METER

AC003604 AB

CONNECTOR: C-94

CONNECTOR
BLOCK (RH)

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS

TSB Revision

TRACTION CONTROL SYSTEM (TCL)

35C-16

STEP 4. Check the harness wires between the ABS-ECU
connector A-02 and ground.
Q: Is any of the harness wires between the ABS-ECU

connector A-02 and ground damaged?
YES : Repair it and then go to Step 5.
NO : Replace the hydraulic unit (integrated with ABS-ECU)

(Refer to GROUP 35B, Hydraulic Unit

P.35B-51

.) and

then go to Step 5.

STEP 5. Check symptoms.

Q: Does the scan tool communicate with the TCL system?

YES : This diagnosis is complete.
NO : Return to Step 1.

AC001985

CONNECTOR: A-02

AD

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS

TSB Revision

TRACTION CONTROL SYSTEM (TCL)

35C-17

INSPECTION PROCEDURE 2: When the Ignition Key is Turned to "ON" (Engine Stopped), the TCL
Indicator Light does not Illuminate.

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-18

CIRCUIT OPERATION

•

Power to the TCL indicator light is supplied from
the ignition switch. The ABS-ECU grounds the
circuit to turn the light ON.

•

The ABS-ECU illuminates the TCL indicator 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 may be: an open circuit in the TCL
indicator light power supply circuit, a blown TCL
indicator light bulb or ABS-ECU malfunction.

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

•

Blown fuse

•

Damaged wiring harness or connector

•

Burnt out TCL indicator light bulb

•

Malfunction of the ABS-ECU

DIAGNOSIS

Required Special Tool:

•

MB991223: Harness Set

STEP: 1. Check the TCL indicator light circuit at the ABS-
ECU connector A-02.
(1) Disconnect the ABS-ECU connector A-02 and measure at

the harness side.

(2) Ground the terminal 13.
(3) Turn the ignition switch to the "ON" position.

Q: Does the TCL indicator light illuminate?

YES : Replace the hydraulic unit (integrated with ABS-ECU)

(Refer to GROUP 35B, Hydraulic Unit

P.35B-51

.) and

then go to Step 9.

NO : Go to Step 2.

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

AC000968

A-02 (HARNESS SIDE)

AB