Mitsubishi Eclipse / Eclipse Spyder (2000-2002). Service and repair manual — part 594

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS

TSB Revision

TRACTION CONTROL SYSTEM (TCL)

35C-11

SYMPTOM CHART

M1354000700043

SYMPTOMS

INSPECTION
PROCEDURE NO.

REFERENCE PAGE

Communication between the scan tool and all
systems is not possible.

−

GROUP 13A, Diagnosis

P.13A-339

or GROUP

13B, Diagnosis

P.13B-

411

.

Communication between the scan tool and the ABS-
ECU is not possible.

1

P.35C-12

When the ignition key is turned to "ON" (engine
stopped), the TCL indicator light does not illuminate.

2

P.35C-17

When the ignition key is turned to "ON" (engine
stopped), the TCL warning light does not illuminate.

3

P.35C-23

The TCL indicator light remains illuminated after the
engine is started.

4

P.35C-29

The TCL warning light remains illuminated after the
engine is started.

5

P.35C-32

The TCL system does not operate.

6

P.35C-35

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS

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TRACTION CONTROL SYSTEM (TCL)

35C-12

SYMPTOM PROCEDURES

INSPECTION PROCEDURE 1: Communication between the Scan Tool and the ABS-ECU is not
Possible.

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

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

Data Link Connector Circuit

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS

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TRACTION CONTROL SYSTEM (TCL)

35C-13

CIRCUIT OPERATION

•

The diagnostic output is made from the ABS-
ECU (terminal 11) to the diagnostic output
terminal (terminal 7) of the data link connector.

•

When the data link connector's diagnostic test
mode control terminal (terminal 1) is grounded,
the ABS-ECU (terminal 12) will switch to the
diagnostic mode.

TECHNICAL DESCRIPTION (COMMENT)
When communication with the scan tool is not
possible, the cause is probably an open circuit in the
ABS-ECU power circuit or an open circuit in the
diagnostic output circuit.

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

•

Blown fuse

•

Damaged wiring harness or connector

•

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

DIAGNOSIS

Required Special Tool:

•

MB991223: Harness Set

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)

AC004413AB

CONNECTORS: C-101, C-107

C-107

C-101

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS

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TRACTION CONTROL SYSTEM (TCL)

35C-14

STEP 1. Check the power supply circuit at the ABS-ECU
connector A-02.
(1) Disconnect the ABS-ECU connector A-02 and measure at

the harness side.

(2) Start the engine.
(3) Measure the voltage between terminal 15 and ground.

Q: Is the voltage approximately 12 volts (battery positive

voltage)?
YES : Go to Step 3.
NO : Go to Step 2.

STEP 2. Check the harness wire between the ignition
switch (IG2) and the ABS-ECU connector A-02.
NOTE: After inspecting the intermediate connector C-94, C-
101, or C-107, inspect the wire. If the intermediate connector
C-94, C-101, or C-107 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 ignition switch (IG2)

and the ABS-ECU connector A-02 damaged?
YES : Repair it and go to Step 5.
NO : Go to Step 3.

AC000947

A-02 (HARNESS SIDE)

AB

AC001985

CONNECTOR: A-02

AD

AC003604 AB

CONNECTOR: C-94

CONNECTOR
BLOCK (RH)

AC004413AB

CONNECTORS: C-101, C-107

C-107

C-101