FRONT SEAT ASSEMBLY
INTERIOR52A-31
FAULT DIAGNOSIS
MEMORY SEAT CONTROLLER (MSC)
OPERATION OF DIAGNOSTICS:
The memory seat controller (MSC) stores specific fault codes
for all functions of the (MSC). The diagnostics are specifically
used to identify faults within the seat assembly, and as such will
hinder the operation of the seat.
When a fault is detected in the (MSC), the system will automat-
ically enter into diagnostic mode.
The indicator lamp (LED) will begin to flash in certain sequence
to indicate a diagnostic trouble code (DTC) as shown in the
table below. The indicator lamp (LED) will stop flashing when
the faults have been resolved.
DIAGNOSTIC TROUBLE CODES (DTC’s)
The indicator lamp (LED) transmits a certain sequence flash to
distinguish faults.The DTC sequence for the most recent cur-
rent trouble is flashed twice only. If there are multiple faults
present, you can display the next current DTC by pressing the
memory button 2 before the MSC goes into the sub-active
mode. Once all DTC’s have been cycled through, the most
recent current DTC will be displayed. There will be no history of
DTC’s displayed.
CENTRALISED JUNCTION
CIRCUIT DIAGRAMS90-13
19 Front-ECU (Field
effect transistor for
headlamp: Low)Fuse 10 Red Headlamp (LH) and headlamp (Low:
LH)
20 Front-ECU (Taillamp
relay)7.5 Brown A/C-ECU, A/T selector lever position
illumination lamp, combination meter,
fog lamp switch, headlamp (RH),
glove box lamp, hazard warning lamp
switch, multi-center display unit,
radio, CD player, rear combination
lamp (RH), rheostat and TCL switch
21 7.5 Brown Headlamp (LH), license plate lamp
and rear combination lamp (LH)
22 Battery/Alternator
(Fusible link No.27)15 Blue A/C-ECU, column switch,
combination meter, ETACS-ECU,
front-ECU, key reminder switch, multi-
center display unit, radio, CD player,
and vanity mirror lamp
23 Ignition switch (ACC) 10 Red A/C-ECU, accessory socket relay,
ETACS-ECU, multi-center display
unit, radio, CD player.
24 Battery/Alternator
(Fusible link No.27)15 Blue Fuel pump module
25 Ignition switch (ACC) 30 Green Front-ECU and windshield wiper
motor
26 Battery/Alternator
(Fusible link No.27)Fusible
link20 Light blue Anti-lock braking system(solenoid
valve)
27
Alternator120
Battery, front-ECU, fusible link Nos.1,
2, 3, 4, 5 and 26 and fuse Nos.6, 7, 8,
9, 10, 11, 13, 14, 15, 22 and 24 (in
relay box) NO. POWER SUPPLY
CIRCUITNAME RATED
CAPACITY (A)HOUSING
COLOURLOAD CIRCUIT
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
