1991 LEXUS SC400 Service Repair Manual

Page 3865 of 4087

LEXUS SC400 1991  Service Repair Manual 
223
COMBINATION METER
B 1  BRAKE FLUID LEVEL SW
1±2 : CLOSED WITH FLOAT DOWN
P 3  PARKING BRAKE SW
1±GROUND : CLOSED WITH PARKING BRAKE LEVER PULLED UP
O 2  OIL PRESSURE SW
1±GROUND : CLOSED WITH

Page 3866 of 4087

LEXUS SC400 1991  Service Repair Manual 
224
COMBINATION METER
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
IE136ENGINE ROOM MAIN WIRE AND COWL WIRE (R/B NO. 4)
IG1

Page 3867 of 4087

LEXUS SC400 1991  Service Repair Manual 
225 
WhereEverybodyKnowsYourName

Page 3868 of 4087

LEXUS SC400 1991  Service Repair Manual 
26
ELECTRICAL WIRING ROUTING
Position of Parts in Engine Compartment
A 1 A/C Ambient Temp. Sensor E 1 ECT Solenoid
A 2 A/C Lock Sensor and A/C Magnetic Clutch E 2 EFI Water Temp. Sensor
A 3 A/C High

Page 3869 of 4087

LEXUS SC400 1991  Service Repair Manual 
27
Position of Parts in Engine Compartment
I 1 ISC Valve S 3Speed Sensor No. 1
I 2 Igniter S 4 Speed Sensor No. 2 (for ECT)
I 4 Ignition Coil S 6 Starter
I 6 Injector No. 1 S 7 Starter
I 7 Injector N

Page 3870 of 4087

LEXUS SC400 1991  Service Repair Manual 
28
ELECTRICAL WIRING ROUTING
Position of Parts in Instrument Panel
A 12 A/C Control Assembly C 9 CD Player
A 13 A/C Control Assembly C 10 Center Airbag Sensor Assembly
A 14 A/C Control Assembly C 11

Page 3871 of 4087

LEXUS SC400 1991  Service Repair Manual 
29
Position of Parts in Instrument Panel
H 7 Hazard SW S 10 Shift Lock ECUS 11 Step Light
I 14 Ignition Key Cylinder Light S 12 Stop Light SW
I 15 Ignition SW, Unlock Warning SW and Key Inter Lock So

Page 3872 of 4087

LEXUS SC400 1991  Service Repair Manual 
30
ELECTRICAL WIRING ROUTING
Position of Parts in Body
A 30 ABS Speed Sensor Rear LH D 10 Door Lock Motor, Door Unlock Detection SW and
A 31 ABS Speed Sensor Rear RH Door Open Detection SW LH
A 32 Au