Page 440 of 1500

INPUT SIGNAL PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-440
INSPECTION PROCEDURE N-3: ETACS-ECU does not receive any signal from any of the door
switches.
.
CIRCUIT OPERATION
The ETACS-ECU operates the following functions or
systems according to signal from the front or rear
door switches:
Light reminder tone alarm function
switch (RH)>
Door ajar warning buzzer
Ignition key reminder tone alarm
switches>
Power window timer function
switches>
Sunroof timer function
Headlamp automatic shutdown function
door switch (RH)>
Keyless entry system
Timer lock
Dome lamp
Interior lamp automatic-shutdown function
door switches>
Ignition key hole illumination lamp
switch (RH)>
Door-ajar indicator lamp
.
TECHNICAL DESCRIPTION (COMMENT)
If the signal is not normal, the functions or systems
described in "CIRCUIT OPERATION" do not work
normally. If the signal is not normal, the front or rear
door switches or the ETACS-ECU may be defective.
.
TROUBLESHOOTING HINTS
Refer to circuit diagrams GROUP-90
Refer to configuration diagrams GROUP-80
The front or rear door switches may be defective
The wiring harness or connectors may have
loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector
The ETACS-ECU may be defective
DIAGNOSIS
Required Special Tools:
MB991223: Harness Set
MB991958: Diagnostic Tool (MUT-III Sub Assembly)
MB991824: Vehicle Communication Interface (V.C.I.)
MB991827: MUT-III USB Cable
MB991910: MUT-III Main Harness A
Page 485 of 1500
CHECK AT ECU TERMINAL
SIMPLIFIED WIRING SYSTEM (SWS)54B-485
SUNROOF-ECU
TERMINAL
NO.INSPECTION ITEM INSPECTION CONDITION NORMAL VALUE
1 Battery power supply (for motor) Always Battery positive voltage
2 Power supply to ignition switch
(IG2)Ignition switch: ON Battery positive voltage
3, 4
5Ground Always 0 V
6 Input signal ("CLOSE/DOWN")
from the sunroof switch Sunroof switch: "CLOSE/DOWN" 0 V
7 Input signal ("UP") from the
sunroof switch Sunroof switch: "UP" 0 V
8 Input signal ("OPEN") from the
sunroof switch Sunroof switch: "OPEN" 0 V
9
10 SWS communication line Always 0 12 V (pulse signal)
Page 508 of 1500
HEADLINING
INTERIOR52A-19
HEADLINING
REMOVAL AND INSTALLATIONM1521001400360
Pre-removal and Post-installation Operation
Front Seat Assembly (Refer to P.52A-21.)
Removal and Installation of Rear Seat Cushion Assembly
and Rear Seatback Assembly (Refer to P.52A-55.)
Removal and Installation of Front Pillar Trim, Center Pillar
Trim Upper and Rear Pillar Trim (Refer to P.52A-11.)
REMOVAL STEPS
1. SUN VISOR
2. SUN VISOR HOLDER
3. OVERHEAD CONSOLE
ASSEMBLY
4. DOME LIGHT ASSEMBLY (REFER
TO GROUP 54A, DOME LIGHT
P.54A-163.)
5. ASSIST GRIP PLUG
6. ROOF INSIDE ASSIST GRIP
ASSIST GRIP>
7. SUNROOF OPENING TRIM
8. ROOF HARNESS CLAMP
INSTRUMENT PANEL SIDE
COVER (REFER TO P.52A-4.)
9. ROOF HARNESS CONNECTOR
FLOOR CONSOLE ASSEMBLY
(REFER TO P.52A-10.)
PARKING BRAKE LEVER
ASSEMBLY MOUNTING BOLT
(REFER TO GROUP 36, PARKING
BRAKE LEVER P.36-6.)
<>10. HEADLINING ASSEMBLY
11. OVERHEAD CONSOLE BRACKET
12. FRONT HEADLINING PAD REMOVAL STEPS (Continued)
Page 566 of 1500
FLOOR, SEAT AND ROOF
CONFIGURATION DIAGRAMS80-17
FLOOR, SEAT AND ROOFM1801000900930
D-01 (2) VANITY MIRROR LIGHT (RH)
D-02 (4) MAP LIGHT ASSEMBLY
SUNROOF>
D-03 (7) OVERHEAD CONSOLE ASSEMBLY
D-04 (10) SUNROOF ASSEMBLY
D-05 (2) VANITY MIRROR LIGHT (LH)
D-06 (3) REAR DOOR SWITCH (RH)
D-07 (3) REAR DOME LIGHT
D-09 (2) REAR SPEAKER (RH)
D-10 (2) TRUNK LAMP
D-11 (1) DEFOGGER (CHOKE COIL)
D-12 (2) REAR SPEAKER (LH)
D-13 (1-B) PARKING BRAKE SWITCHD-14 (6) A/T SHIFT SWITCH AND SELECT
POSITION ILLUMINATION LIGHT
D-15 (2) SUB WIRING HARNESS FOR
ACCESSORY SOCKET (2)
D-16 (3) REAR DOOR SWITCH (LH)
D-17 (2) FUEL LEVEL SENSOR (SUB)
D-18 (5-GR) FUEL PUMP MODULE
D-19 (10) FLOOR WIRING HARNESS AND
REAR DOOR WIRING HARNESS
(LH) COMBINATION
D-20 (2) SIDE IMPACT SENSOR (LH)
D-21 (2-B) SEAT BELT PRETENSIONER (LH)
D-22 (3) FRONT DOOR SWITCH (LH)
D-24 (2-R) SIDE AIR BAG MODULE (SQUIB)
(LH)
Page 579 of 1500

CIRCUIT DIAGRAMS90-2
AUTOMATIC AIR CONDITIONING
SYSTEM . . . . . . . . . . . . . . . . . . . . . . .90-71
WINDSHIELD WIPER AND WASHER90-75
REAR WINDOW DEFOGGER . . . . . .90-78
REMOTE CONTROLLED MIRROR . .90-79
AUDIO SYSTEM . . . . . . . . . . . . . . . .90-80
ACCESSORY SOCKET . . . . . . . . . . .90-82
CLOCK DISPLAY . . . . . . . . . . . . . . .90-83
MULTI-CENTER DISPLAY . . . . . . . .90-84
SUNROOF . . . . . . . . . . . . . . . . . . . . .90-87
AUTO-CRUISE CONTROL SYSTEM90-89
ANTI-LOCK BRAKING SYSTEM (ABS)
CONTROL (TCL)> . . . . . . . . . . . . . . .90-93
ANTI-LOCK BRAKING SYSTEM (ABS)
CONTROL (TCL)> . . . . . . . . . . . . . . .90-96SUPPLEMENTAL RESTRAINT
SYSTEM (SRS) . . . . . . . . . . . . . . . . . .90-99
ENGINE IMMOBILISER SYSTEM . . .90-103
POWER SEAT WITH MEMORY
(DRIVER). . . . . . . . . . . . . . . . . . . . . . .90-104
POWER SEAT (8-WAY)
(DRIVER AND PASSENGER) . . . . . .90-106
POWER SEAT [(6-WAY) DRIVER] . .90-108
FORGOTTEN KEY PREVENTION
FUNCTION . . . . . . . . . . . . . . . . . . . . .90-109
LIGHTING MONITOR TONE ALARM90-111
IGNITION KEY REMINDER TONE
ALARM . . . . . . . . . . . . . . . . . . . . . . . .90-112
SEAT BELT WARNING TONE
ALARM . . . . . . . . . . . . . . . . . . . . . . . .90-113
DOOR AJAR WARNING TONE
ALARM . . . . . . . . . . . . . . . . . . . . . . . .90-115
RHEOSTAT . . . . . . . . . . . . . . . . . . . . .90-118
CONTROLLER AREA NETWORK
(CAN) . . . . . . . . . . . . . . . . . . . . . . . . .90-119
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 664 of 1500
SUNROOF
CIRCUIT DIAGRAMS90-87
SUNROOFM1901009900859
Page 665 of 1500
SUNROOF
CIRCUIT DIAGRAMS90-88