
COMBINATION METER
CHASSIS ELECTRICAL54A-10
COMBINATION METER
M2540005000894
The combination meter features large, clearly visible
analogue indicators. The meter has the speedometer
in the middle, the coolant temperature gauge at
upper right, the fuel gauge at lower right, and the
tachometer at left so that drivers can easily distin
-
guish the information from the meters. The combina-
tion meter offers the following advantages.
•The combination meter is used for air conditioner
and meter drive control to integrate ECU.
•CAN communication is used for more reliable
transmission of all gauge data and indicator lamp
input signals, such as vehicle speed, engine
RPM, and coolant temperature. For further
details on CAN, refer to GROUP 54C, CAN
P.54C-2. The signals that the combination meter
uses are described in the CAN communications
input signals table
.
•Several diagnosis functions such as the diagno-
sis code memory and actuator tests are prepared
in order to improve serviceability.
•For a brighter display at night and for a longer
useful life, all indicator lamps, warning lamps, and
illumination bulbs use LEDs.
•The indicators for the speedometer, fuel gauge,
and other gauges are driven by a stepping motor.
For further details, consult the stepping motor
section
.
•The electronic speedometer operates by receiv-
ing vehicle speed signals sent by the
engine-ECU
via the CAN.
•A large and clear LCD type odo-tripmeter is pro-
vided. The odometer continuously displays val-
ues while the tripmeter adopts a twin-trip (trip A,
trip B) function which is switched by a reset but
-
ton. In addition, clock function is incorporated.
•A fog lamp indicator lamp is provided to let the
driver know that the fog lamp is on.
•A seat belt warning lamp is installed to encourage
the driver to fasten the seat belt.
•The high-contrast meter is adopted. When the
ignition is turned ON, such as the needles and
face display are illuminated with fade-in lighting
by the LED light source.
•To further accentuate the high-contrast lighting,
the light of the high-contrast meter fades in and
fades out when the light is turned on and off
respectively.
•With the auto illumination function incorporated in
the high-contrast meter, a two-stage switching of
daytime (non-dimming) and nighttime (dimming)
is achieved. Also, the brightness can be adjusted
using the illumination control knob.
•A tail lamp indicator lamp is installed which
informs the lighting status of the tail lamps to the
driver.

COMBINATION METER
CHASSIS ELECTRICAL54A-12
STEPPING MOTOR
AC208264
When the battery line is connected or
a voltage drops from cranking or the like.
AD
AC107161
Deviation of
needleNo deviation of
needle
15˚
AE
Ignition switch at ON or LOCK (OFF) position
These
gauge s use a stepp ing motor a s the drive
mechanism for
the indica tor s (calle d the "move
-
ment"). Compared with conventional movement s, the
torque f
o r driving the indicators is much gre a ter for
supe
rior indicator a ccu racy and more st able respo n se. The indicator po sit i on d i sp layed is dete r
-
min
ed a s t he microcon troller circuit in the gauge co n-
trols the stepping moto r . In conve n tion al gaug es, the
indicato
r revo lves 360
° in response to 3 6 0° driving
contro
ls.
Ho
we
ver
,
a ste
pping
mot
o
r is designed so
that the
ind
i
cat
o
r revolves on
ly
15
°, even in
respo
n
se
to a drive contro
l of 3
6
0
°. The 15 ° drive
c
ont
ro
l m
u
st
be
rep
eat
ed
t
o
ma
ke
th
e
ind
i
cat
o r rot a t e
36
0
°. Th us , at a po sit i o n 15 ° a w a y fr om th e in dicat o r
display positio
n, there
will be an iden tica l control. As
a resu
lt, in the
case of a
great imp a ct such as from
an accide
nt wh
en the indicator becomes misalign ed,
if the
ignition
is
switched o
n
to st art driving while t he
indicato
r is
misaligned,
the indicator will fu nction
wh
ile
misaligned.
Thus, to retu rn the indicator to the
norma
l position in
case this ha ppens, when the ig ni
-
tion is switched on , the indicator p o sitions are re set
to their respective
position s af ter th e batte ry line is
conn
ected af ter it is cut. Af ter th e batte ry line is cut
and reconne
cted , the indicators simply retu rn to th e
zero
positio n. Th e same ope ration is pe rforme d af ter
volt
ag e is resto r ed if gauge functions are lost
beca
u se o f a volt age d r op from cra n king or t he like.
Furthermore, t
he in dicator only re turns 15
° after the
ignition
is switched on
or the
lock is turne
d
of f. The
indicato
r is
not moved
if it is not misa
lig
ned.
CAN COMMUNICA TION INPUT SIGNALS T ABLE
SignalTransmitter ECU
Engine speed signalEngine-ECU
engine-CVT-ECU
Vehicle speed signal
Engine malfunction indicator lamp request signal
Engine coolant temperature signal
Shift lever indicator signal
ABS warning lamp request signalABS-ECU or ASC-ECU
EBD (brake) malfunction indicator lamp request signal
ASC indicator lamp request signal
EPS malfunction indicator lamp request signalEPS-ECU

TECHNICAL FEATURES
GENERAL00-26
SCHEMATIC DIAGRAM
AC508098
Front impact against
another vehicleor
Front impact against a
solid surface Analogue G-sensor
Ignition judgment
Shock
above a
certain
level
Ignition signal
SRS-ECU
Front air bag safing
G-sensor
Front impact
sensor (RH)
Front impact
sensor (LH)
AB
In case of a
frontal collision, if the front imp act sensor
in the engine comp artment, the analogue G-sensor
in the SRS-ECU and t he front air bag safing sensor
simult aneously de tect an imp act th at excee d a cer
-
ta in threshold (turn ON), the SRS-ECU sen ds an
ignition signal to the air bag modules (squ ibs) and
seat belt with pre-te nsioners (squibs) on the driver
and p asseng er sides, thus inflating the air bag s and
operating the seat belt with pre -tensioner s.
SEAT BEL T RETRACT OR WITH FORCE
LIMITE R
The driver ’s /front p asseng er’s seat belt retractor has
been e quipped with a force limit er. The force limiter
is a device which operat es when a predetermined
force is applied, an d limits the for ce.
OPERA TION
1. If collision energy is transmit ted to the seat belt,
th e ELR mechanism will oper ate to lock the seat
be lt.
AC100083
Torsion bar
Spindle
Belt
AC
2.
Then, if the en ergy increase s to a prede termined
value , the to rsion bar will b e distorted . As th e
spind le rot ate s tog ether with the t orsion bar , the seat b
elt webb ing is p ulle d out, reducing th e
imp act against t he occupants.
REAR SEA T BELT WITH CHILD SEA T FIX-
ING MECHANISM (ALR*)
The child seat fixing mechanism h as b een ad opted
to easily and securely fix the child seat that is not
comp atible with ISO FIX.
NO TE: *ALR: Automatic Lockin g Retractor
STEERING SHAFT AND STEERING COL-
UMN
The impact ab sorption mech anism in combin ation of
retract able steerin g shaft and steering co lumn disen
-
gagement mecha nism has been ad opted t o alle viate
the imp act from th e steering wheel to the d rive r.
BRAKE PEDAL AND PA RKING BRAKE
PEDAL
The bra ke pe dal b ackward mo vement restraint
mechanism to restrain the backward movement of
the brake p edal to the minimum at the time o f f ront al
collision h as b een ad opted so that the impact to th e
lower limb s of the driver can be alleviated.
CHILD SEAT FIXING BAR COMP ATIBLE
WITH ISO FIX*
The an chor bar has been equipped a s st andard fo r
easily and secu rely fixing the child seat comp atible
with ISO FIX.
NO TE: *ISO F IX: ISO (In ternational Orga nization for
S tand ardizatio n) complied child se at fixing method

ELECTRICAL POWER STEERING
POWER STEERING37-8
ELECTRICAL PARTS AND FUNCTIONS
Parts nameDescription about function
SensorVehicle speed sensor (ABS-ECU)Sends the vehicle speed signal to the electric power
steering-ECU.
Torque sensorDetects a steering force, converts it into the voltage signal,
and then sends the signal to the electric power
steering-ECU.
ActuatorMotorGenerates assist torque by the steering operation to the
steering gear using the signals sent from the electric power
steering-ECU.
Electric power steering warning
lampWarns a driver of the system malfunction using the signal
sent from the electric power steering-ECU.
Electric power steering-ECUControl the actuator (motor) based on the signal sent from
sensor.
Controls the self-diagnostic fu nction and fail-safe function.
Controls diagnostic function (Compatible with M.U.T.-III).
GENERAL DESCRIPTION ON SYSTEM
AC207803
AC206444
AC206443
AB
Electric power
steering-ECU
Glove box
Torque sensor
Motor
T o improve opera t iona l reliabi lity , th e dual-circuit sys-
tem ha s be en ad opted f o r the t o rque sensor . If a n y
malfunct
i on occurs in the electric power st eering sys
-
tem, the fail-sa f e fun c tio n of th e ele c tric power steer-
ing-ECU is activated, and the ou tput current of the
electric power steerin
g-ECU a pplied to the motor is
turned o
f f. At th e sa me time, the steerin g syste m enters man ual mode, and informs a dr iver of the sys
-
tem malfu
n ction by illuminating th e warnin g lamp on
the
comb in at io n me te r . Th e warn in g la mp il lu min a te s
wh
en the following malfu n ct ions occur: ope n circuit
in the
e l ectric power stee ring system wiring harness,
poor connectio
n , ma lfunction s in the e l ectric power
steering-ECU, mo
tor , or sensors.

MULTI-DISTRIBUTION INPUT/OUTPUT BY CIRCUIT
SMART WIRING SYSTEM (SWS)54B-4
MULTI-DISTRIBUTION INPUT/OUTPUT BY CIRCUIT
M2541002000649
Multi-distribution is employed by the following cir-
cuits. The relation of the input switches, sensors,
ECUs connected by multi-distribution lines, and out
-
puts are also shown below.
Buzzer
•Lamp reminder buzzer function
•Door-ajar warning buzzer function
•
AC601725AB
• Ignition switch (IG1)
• Driver's door switch
• Hazard lamp switch
Combination meter
• Vehicle speed signal
• Ignition switch (IG1) ETACS-ECU
Circuit and Input Switch
ECUs and Switches
Connected by
Multi-DistributionOutput
Buzzer (built-in ETACS-ECU)
: CAN communication line : SWS communication line
Column switch
(Lighting or turn
signal lamp
switch)
T u rn-sign a l op eratio n so und fun c tion
Keyless e n try
•Multi-mode keyless en try system
•Keyless entry hazard a n swerba ck function
•
AC401127AB
• Respective door switches
• Key reminder switch
• Keyless entry transmitter ETACS-ECU
•
Electric retractable remote
controlled mirror
• Respective turn signal lamps
• Room lamp
Circuit and Input Switch
ECUs and Switches
Connected by
Multi-DistributionOutput
Keyless ent
ry roo m la mp a n swerba ck funct i on

MULTI-DISTRIBUTION INPUT/OUTPUT BY CIRCUIT
SMART WIRING SYSTEM (SWS)54B-7
Flasher timer
•Turn signal lamp•
AC207067
Combination meter
• Turn signal indicator lamps
ETACS-ECU
AB
Circuit and Input Switch
ECUs and Switches
Connected by
Multi-Distribution
Output
Column switch
(Turn-signal lamp
switch)
• Ignition switch (IG1)
• Hazard lamp switch
Combination meter
• Ignition switch (IG1) Turn signal lamp
: SWS communication line
: CAN communication line
Hazard warning lamp

DIAGNOSTIC FUNCTION
SMART WIRING SYSTEM (SWS)54B-8
DIAGNOSTIC FUNCTION
M2541003000642
DIAGNOSIS CODE SET
For more information about diagnosis code output,
refer to the Workshop Manual.
SWS INPUT SIGNAL CHECK USING
M.U.T.-III
When the M.U.T.-III is connected to the diagnosis
connector and any of the SWS-linked switches is
operated, the PC buzzer sounds to evaluate whether
the switch is normal or not.
SWS INPUT SIGNAL CHECK AND ECU
CHECK BY USING SWS MONITOR
The switch signals sent by ECUs and the operations
of these ECUs can be confirmed by using the SWS
monitor and the M.U.T.-III.
INPUT SIGNALS THAT CAN BE CHECKED
Input signalCondition for sounding buzzerDisplay on
M.U.T.-III (when
SWS monitor is
used)
Ignition switch (ACC)Turn from "LOCK" (OFF) to "ACC" positionfrom OFF to ON
Ignition switch (IG1)Turn from "ACC" to "ON" positionfrom OFF to ON
Key reminder switchRemove the ignition key from ignition key cylinder
(form inserted position)from OFF to ON
Hazard lamp switchTurn from OFF to ONfrom OFF to ON
Fog lamp switch
Remote controlled mirror
switch (unfolding/folding
switch)
Speed signal When the speed changes from less than 10 km/h to
more than 10 km/hDisplays the
vehicle speed
Cranking signalWhile the ignition switch is in START position (while
cranking the engine)−
Selector lever P position signal
(parking)When the selector lever is shifted to the "P" position
(Ignition switch: ON or START)−
Selector lever R position signal
(reverse)When the selector lever is shifted to the "R" position
(Ignition switch: ON or START)−
Buzzer triggered by
ETACS-ECU
*1
When the following conditions are satisfied
•Ignition switch: LOCK (OFF) position
•Lighting switch: ON
•Driver’s door switch: ON (Driver’s door: OPEN)
ON
When requirements for sounding each warning buzzer
are not satisfiedOFF
Door switchDriver’s doorWhen door(s) or tailgate is opened from the closed
positionfrom OFF to ON
Passenger’s
door
Rear door
All door switchA door is opened when all the doors are closedfrom OFF to ON

DIAGNOSTIC FUNCTION
SMART WIRING SYSTEM (SWS)54B-9
Driver's door lock actuator
switchMove the door lock knob or driver’s door key cylinder
from lock position to unlock position or vice versafrom ON to OFF or
from OFF to ON
Driver's door unlock actuator
switchfrom OFF to ON or
from ON to OFF
Power window timer duration*1When the power window timer is activatedDisplays the
operation duration
Column
switchTail lamp switchWhen the lighting switch is turned from one position to
the tail lamp positionfrom OFF to ON
Headlamp
switchWhen the lighting switch is turned from one position to
the headlamp position
Dimmer switchWhen the switch is turned from the OFF to the ON
position
Passing switch
Turn signal
lamp LH switch
Turn signal
lamp RH switch
Headlamp specification*1The display alters according to the headlamp
specification ("4 BULBS" or "2 BULBS").4 BULBS
Column
switch (wiper
switch)Windshield
mist wiper
switchWhen the switch is turned from OFF to ONfrom OFF to ON
Windshield
intermittent
wiper switch
Windshield low
speed wiper
switch
Windshield
high speed
wiper switch
Windshield
washer switch
Rear wiper
switch
Rear washer
switch
Windshield
intermittent
wiper volumeWhen the interval adjusting knob is turned from
"FAST" to "SLOW" while the ignition switch is ON.Displays the
windshield
intermittent wiper
volume voltage
Wiper
autostop
signalFrontWhen activated from the stopped conditionfrom OFF to ON
Rear
Input signal Condition for sounding buzzer Display on
M.U.T.-III (when
SWS monitor is
used)