Mitsubishi Galant. Manual — part 532

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS

TSB Revision

TRACTION CONTROL SYSTEM (TCL)

35C-9

DIAGNOSTIC TROUBLE CODE CHART

M1354000600024

Refer to GROUP 35B

−

Diagnosis Trouble Code

Chart.

SYMPTOM CHART

M1354000700021

SYMPTOMS

INSPECTION
PROCEDURE NO.

REFERENCE PAGE

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

-

13A

−

Diagnosis

Symptom chart

P.13A-22

or 13B

−

Diagnosis

Symptom chart

P.13B-22

.

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

1

P.35C-10

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

2

P.35C-14

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

3

P.35C-21

The TCL indicator remains illuminated after the
engine is started.

4

P.35C-26

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

5

P.35C-29

The TCL system does not operate.

6

P.35C-32

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS

TSB Revision

TRACTION CONTROL SYSTEM (TCL)

35C-10

SYMPTOM PROCEDURES

INSPECTION PROCEDURE 1: Communication with scan tool is not possible. (Commnication with
TCL only is not possible.)

AC003724AB

Data Link Connector Circuit

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS

TSB Revision

TRACTION CONTROL SYSTEM (TCL)

35C-11

CIRCUIT OPERATION

•

The diagnostic output is made from the ABS-
ECU (terminal 11) to the diagnostic output
terminal (terminal 11) 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 condition:

•

Blown fuse

•

Damaged wiring harness or connector

•

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

DIAGNOSIS

Required Special Tool:

•

MB991223: Harness Set

AC003695 AB

CONNECTOR: A-03

AC005076AC

CONNECTOR: C-23

AC003082AK

CONNECTORS: C-73, C-77

C-73

JUNCTION BLOCK
(FRONT VIEW)

C-77

AC005077AB

CONNECTOR: C-12

AC005076AB

CONNECTOR: C-29

AC005076AD

CONNECTOR: C-57

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS

TSB Revision

TRACTION CONTROL SYSTEM (TCL)

35C-12

STEP 1. Check the power supply circuit at ABS-ECU
connector A-03.
(1) Disconnect connector A-03 and measure at the harness

side.

(2) Start the engine.
(3) Measure the voltage between terminal 4 and ground.

Q: Is the voltage approximately 12 volts?

YES : Go to Step 3.
NO : Go to Step 2.

STEP: 2. Check the harness wire between ignition switch
(IG2) and ABS-ECU connector A-03.

NOTE: After inspecting intermediate connector C-12, C-73 or
C-77, inspect the wire. If intermediate connector C-12, C-73 or
C-77 is damaged, repair or replace it. Refer to GROUP 00E,
Harness Connector Inspection

P.00E-2

. If the connector has

been repaired, go to Step 5 .

Q: Are any harness wires between ABS-ECU connector A-

03 and ignition switch (IG2) damaged?
YES : Repair them and then go to Step 5.
NO : Go to Step 5.

AC003703 AB

A-03 (HARNESS SIDE)

AC005077AB

CONNECTOR: C-12

AC003082AK

CONNECTORS: C-73, C-77

C-73

JUNCTION BLOCK
(FRONT VIEW)

C-77

AC003695 AB

CONNECTOR: A-03