Headlights do not illuminate when the
lighting switch is at "TAIL," and "PASSING"
position, but illuminate at low-beam when
the switch is at "HEAD" position. At this
position, the headlights cannot be changed
into high beam by operating the dimmer
switch.

J-5

P.54B-313

Any of taillights, position lights or license
plate light does not illuminate.

J-6

P.54B-315

One of the headlights does not illuminate.

J-7

P.54B-345

The high-beam Indicator Light does not
Illuminate.

J-8

P.54B-356

Headlight automatic shutdown function
does not work normally.

J-9

P.54B-363

Headlight dimmer switch automatic
resetting function does not work normally.

J-10

P.54B-366

Daytime running light function does not
work normally. <vehicles for Canada>

J-11

P.54B-367

Flasher timer

General description concerning the flasher
timer function

−

P.54B-369

Turn-signal lights do not flash when the
turn signal light switch is operated.

K-1

P.54B-372

Hazard warning lights do not illuminate.

K-2

P.54B-379

One of the turn-signal lights do not
illuminate.

K-3

P.54B-381

Fog light

General description concerning the fog
light function

−

P.54B-402

Fog lights do not illuminate when the fog
light switch is operated.

L-1

P.54B-404

Fog lights do not go out when the
headlights (low-beam) are turned off while
the fog lights are on.

L-2

P.54B-411

One of the fog lights does not illuminate.

L-3

P.54B-412

SYSTEM

SYMPTOM

INSPECTION
PROCEDURE

REFERENCE
PAGE

SYMPTOM CHART

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-26

Interior light

General description concerning the interior
light function

−

P.54B-425

The dome light do not illuminate or go out
normally.

M-1

P.54B-428

Dome light dimming function does not work
normally.

M-2

P.54B-459

The ignition key hole illumination light does
not illuminate or go out normally.

M-3

P.54B-463

Theft-alarm system

General description concerning the
theft-alarm system

−

P.54B-471

Theft-alarm system is not armed
(theft-alarm indicator light does not
illuminate).

N-1

P.54B-475

Horn does not sound when the theft-alarm
system is triggered.

N-2

P.54B-484

Headlights (high-beam) do not flash when
the theft-alarm system is triggered.

N-3

P.54B-498

Panic alarm function does not work.

N-4

P.54B-499

SYSTEM

SYMPTOM

INSPECTION
PROCEDURE

REFERENCE
PAGE

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-27

SYMPTOM PROCEDURES

INSPECTION PROCEDURE A-1: Communication with the SWS monitor kit is not possible.

TECHNICAL DESCRIPTION (COMMENT)
The SWS monitor kit may be connected improperly.

Scan Tool Communication and ETACS-ECU Ground Circuit

AC204170

CONNECTORS : D-02, D-117, D-118

D-118(B)

D-02

D-117

AC204173

CONNECTORS : D-209, D-220

D-208

D-220

AC204174

CONNECTORS : D-222, D-224

D-224(B)

D-222

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-28

TROUBLESHOOTING HINTS

• The SWS monitor body (I/F cartridge) may be

defective

• The SWS monitor harness may be defective

• The ETACS-ECU may be defective

• The wiring harness or connectors may have

loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector

DIAGNOSIS

Required Special Tools:

• MB991223: Harness Set

• MB991958: Scan Tool (MUT-III Sub Assembly)

• MB991824: Vehicle Communication Interface (V.C.I.)

• MB991827: MUT-III USB Cable

• MB991911: MUT-III Main Harness B

STEP 1. Verify SWS monitor kit MB991862 for proper
connection.
Q: Is SWS monitor kit MB991862 connected with the

column switch properly?
YES : Go to Step 2.
NO : Connect SWS monitor kit MB991862 to the column

switch securely.

STEP 2. Verify the power supply circuit to the ETACS-ECU.
Q: Does the system communicate with scan tool

MB991502 when the ignition switch is turned to the
"ON" position?
YES : Go to Step 3.
NO : Refer to Inspection Procedure A-3 "Communication

with the ETACS-ECU is not possible

P.54B-42

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