Page 488 of 1500

ON-VEHICLE SERVICE
SIMPLIFIED WIRING SYSTEM (SWS)54B-488
ITEM (multi-center display) ADJUSTMENT DETAILS
Lamps Headlamp auto-cutout functionThe headlamp automatic shutoff function can
be set in the following ways.
a. Auto-cutout only when the ignition is turned
OFF and drivers side door is open while
lamps are on (default- 1 minute timer)
b. Auto-cutout when ignition is turned OFF
and driver side door is open at any time
(adjustable- 3 minute timer)
c. No auto-cutout (adjustable)
Dome lamp cutout time The interior dimmer delay period can be set in
the following ways.
a. 0 second
b. 15 seconds
c. 30 seconds (default)
d. 60 seconds
e. 120 seconds
f. 180 seconds
Interior lamp auto-cutout time The period before the interior illumination is
turned off automatically can be set in the
following ways.
a. 3 minutes
b. 30 minutes (default)
c. 60 minutes
d. No auto-cutout
Wipers Windshield wiper speed-sensitive
operationThe speed-sensitive wiper function can be
activated or deactivated. (ON by default)
Page 514 of 1500

FRONT SEAT ASSEMBLY
INTERIOR52A-25
MEMORY SEAT DIAGNOSIS
POWER SEAT SUPPLY AND GROUND CONNECTOR (D-40)
SPECIAL TOOL:
MB991219: Inspection Test Harness
CIRCUIT DIAGRAMS:
Refer to circuit diagrams GROUP-90
Refer to configuration diagrams GROUP-80
NOTE: Check connectors and terminals for damage or
loose connections at the seat harness and all supply
circuits connections to seat. Repair or replace wiring
harness if damaged.
NOTE: The special tool (Inspection test harness) MB991219
for connector pin contact pressure should be used. The test
probe should never be forcibly inserted, as it may cause a
defective contact.
10-WAY TRACK (MEMORY)- SOURCE TO (MSC) POWER
CONNECTOR (D-38)
NOTE: The special tool (Inspection test harness) MB991219
for connector pin contact pressure should be used. The test
probe should never be forcibly inserted, as it may cause a
defective contact. SUPPLY TEST
CONNECTION
(D-40) SPECIFIED CONDITION
BATTERY
SUPPLY112V
GROUND 2 Less than 2 ohms or 0V
CIRCUIT
DESCRIPTION TEST CONNECTION
(MSC)
POWER
(D-38) SOURCE INTERMEDIATE
CONNECTOR
GROUND 1 GROUND 15 -
"NEUTRAL" 2 A/T-ECU (B-19) 31 (B-25) pin 9
Bus LT 3 - -
IGNITION- LED ON 4 (IGN 2) J/B fuse 9 (C-28) pin 35
DOOR SW.- LED ON 5 RH Door sw. (D-34) 2 -
VEHICLE SPEED 6 A/T-ECU (B-19) 24 (C-25) pin 8
"PARK" 7 A/T-ECU (B-19) 30 (C-25) pin 10
N.C - - -
Page 517 of 1500
FRONT SEAT ASSEMBLY
INTERIOR52A-28
ACTIVATION OF A MEMORY RECALL
All memory button seat position recalls will be refused while the
vehicle is in any other gear select position other than "PARK" or
"NEUTRAL". Memory recalls are also disabled if vehicle is in
"PARK" or "NEUTRAL" but the vehicle speed is greater than
15km/h (see table below).
IGNITION PARK NEUTRAL >15km/h MEMORY
RECALL
POSSIBLE
N X X N Y
N X X Y N
Y N N X N
Y Y N N Y
Y Y N Y N
Y N Y N Y
Y N Y Y N
Page 553 of 1500
ENGINE COMPARTMENT
CONFIGURATION DIAGRAMS80-4
ENGINE COMPARTMENTM1801000301403
A-01 (2-B) WHEEL SPEED SENSOR (FRONT:
RH)
A-02 (26-B) ABS-ECU OR ABS/TCL-ECU
A-03 (5-B) WINDSHIELD WIPER MOTOR
A-04 (2-B) WHEEL SPEED SENSOR (FRONT:
LH)
A-05X (4) FOG LAMP RELAY
A-06X (4) HORN RELAY
A-10X (4) FAN CONTROL RELAYA-11X (11) FRONT-ECU
A-12X (11) FRONT-ECU
A-13 (17-GR) FRONT WIRING HARNESS AND
CONTROL WIRING HARNESS
COMBINATION
A-14 (6-GR) GROUNDING CONNECTOR
A-17 (2) SIDE TURN SIGNAL LAMP (LH)
A-18 (2) FRONT TURN SIGNAL LAMP (LH)
A-20 (6) HEADLAMP COMBINATION (LH)
Page 557 of 1500
ENGINE AND TRANSMISSION
CONFIGURATION DIAGRAMS80-8
B-101 (3-GR) IGNITION COIL 1
B-102 (3-GR) IGNITION COIL 3
B-103 (3-GR) IGNITION COIL 5
B-104 (2-B) ENGINE COOLANT TEMPERATURE
SENSOR
B-106 (3-B) CAMSHAFT POSITION SENSORB-107 (3-GR) OUTPUT SHAFT SPEED SENSOR
B-108 (10-GR) A/T CONTROL SOLENOID VALVE
ASSEMBLY
B-109 (3-B) INPUT SHAFT SPEED SENSOR
B-110 (10-B) TRANSMISSION INHIBITOR
(RANGE) SWITCH
Page 571 of 1500
FLOOR, SEAT AND ROOF
CONFIGURATION DIAGRAMS80-22
D-26 (20-Y) SRS-ECU (FLOOR HARNESS)
D-27 (20-Y) SRS-ECU (FLOOR HARNESS)
D-28 (5-B) SEAT BELT BUCKLE SWITCH
(DRIVER’S SIDE)
D-30 (2) WHEEL SPEED SENSOR (REAR:
RH)
D-31 (2) WHEEL SPEED SENSOR (REAR:
LH)
D-32 (2-R) SIDE AIR BAG MODULE (SQUIB)
(RH)
D-33 (2-B) SEAT BELT PRETENSIONER (RH)
D-34 (3) FRONT DOOR SWITCH (RH)D-35 (2) SIDE IMPACT SENSOR (RH)
D-36 (10) FLOOR WIRING HARNESS AND
REAR DOOR WIRING HARNESS
(RH) COMBINATION
D-38 (8) POWER SEAT (MEMORY) (RH)
D-39 (2) POWER SEAT ASSEMBLY (LH)
D-39-1 (5-W) FRONT HEIGHT MOTOR
D-39-2 (5-B) REAR HEIGHT MOTOR
D-39-3 (4) SEAT SLIDE MOTOR
D-39-4 (8) SEAT ADJUST SWITCH (LH)
D-40 (1-B) CAPACITOR
Page 592 of 1500

CENTRALISED JUNCTION
CIRCUIT DIAGRAMS90-15
NO. POWER SUPPLY
CIRCUITNAME RATED
CAPACITY (A)HOUSING
COLOURLOAD CIRCUIT
1 Fusible link No.1 Fuse 30 Green Rear window demister
2 30 Green Blower motor and resistor
3
4
5 15 Blue Accessory socket
6 15 Blue Data link connector and ETACS-ECU
7 Ignition switch (ACC) 15 Blue ETACS-ECU
8
9 Ignition switch (IG2) 7.5 Brown Sunroof assembly
10 Ignition switch (ACC) 7.5 Brown Remote controlled mirror
11
12
13 Ignition switch (IG1) 7.5 Brown Fuel pump relay and Engine ECU
14 Ignition switch (ACC) 20 Yellow Windscreen wiper
15 Fusible link No.1
(Fuse No.5 in junction
block)7.5 Brown Remote controlled mirror
16 Ignition switch (IG2) 7.5 Brown A/C compressor clutch relay,
A/C-ECU, blower relay, condenser
fan motor, fan control relay,
front-ECU, outside/inside air selection
damper control motor and rear
window defogger relay
17 Ignition switch (IG1)
18 7.5 Brown A/T control relay, input shaft speed
sensor, output shaft speed sensor,
Engine ECU, rear combination lamp
and SRS-ECU
19 7.5 Brown ABS-ECU, ABS/TCL-ECU, column
switch, combination meter,
ETACS-ECU, multi-center display unit
and SRS-ECU
20 10 Red Ignition coil
21
22
23 Fusible link No.5 20 Yellow Sunroof assembly
24
Page 705 of 1500

GENERAL DESCRIPTION
HEATER, AIR CONDITIONING AND VENTILATION55-4
OPERATION
.
CONDENSER FAN AND RADIATOR FAN
CONTROL
The ECU judges the required revolution speed of
radiator fan motor and condenser fan motor using
the input signals transmitted from A/C switch, output
shaft speed sensor and engine coolant temperature
sensor. The ECU activates the fan control relays to
drive the radiator fan motor and condenser fan
motor.
.
COMPRESSOR CONTROL
When operating the air conditioning switch
The air thermo sensor, which senses the temper-
ature of the air flowing out of the evaporator,
deactivates the compressor at 3
C (37.4F) or
below.
The dual pressure switch turns OFF when the
refrigerant pressure becomes excessively high or
low, thus protecting the compressor circuit (See
Table below).
When the air thermo sensor is activated, and the
ignition switch, blower switch, and air condition-
ing switch are ON, the A/C compressor clutch
relay is energized.
When operating the mode selection dial
The air conditioning will work when the mode
selection dial is set to the "Defroster" or
"Defroster/foot" position, or the temperature con-
trol dial is set to the "MAX A/C" position. In other
dial positions, when the air conditioning switch is
turned on, the air conditioning will work.
A/C Compressor Clutch Relay ON Conditions
Ignition switch (IG2) ONNOTE: A/C compressor clutch relay is
de-energized when any one switch, sensor
or control unit shown on the left turns off.
NOTE: The components marked by
*
communicate with the ECU. If the air thermo
sensor detects a temperature of 3
C
(37.4
F), the A/C-ECU will turn off the A/C
compressor clutch relay. Blower switch ON
Air conditioning switch, mode selection dial
defroster, defroster/foot position or temperature
control MAX A/CON
Air thermo sensor*
Pressure detected
by A/C pressure
sensor2940 kPa or less (If the
refrigerant pressure exceeds
2940 kPa, A/C compressor
clutch relay is not ON
condition until the refrigerant
pressure has been measured
up to 2350 kPa or less.)ON
190 kPa or more (If the
refrigerant pressure falls short
of 190 kPa, A/C compressor
clutch relay is not ON
condition until the refrigerant
pressure has been measured
up to 220 kPa or more.)
A/C compressor clutch relay driving transistor (within
ecu)ON