LEXUS SC400 1991 Service Repair Manual

LEXUS SC400 1991 Service Repair Manual SC400 1991 LEXUS LEXUS https://www.carmanualsonline.info/img/36/57051/w960_57051-0.png LEXUS SC400 1991 Service Repair Manual
Trending: fuel consumption, oil reset, hood release, Throttle Position, fuel cap release, turn signal, gas type

Page 181 of 4087

LEXUS SC400 1991  Service Repair Manual 
Check spiral cable.
Repair or replace spiral cable.
Measure resistance between D+ and D± on center
airbag sensor assembly side of connector between
center airbag sensor assembly and spiral cable.
Ch

Page 182 of 4087

LEXUS SC400 1991  Service Repair Manual 
Check center airbag sensor assembly.
Diagnostic code 14 is not output.(1) Connect connector to center airbag sensor 
connector.
(2) Connect connector between center airbag  sensor assembly and spiral

Page 183 of 4087

LEXUS SC400 1991  Service Repair Manual 
MEMO
±
SRS AIRBAG TroubleshootingAB±67 
WhereEverybodyKnowsYourName

Page 184 of 4087

LEXUS SC400 1991  Service Repair Manual 
 
Diag. Code 15\
 \
Open in Front Airbag Sensor Circuit
CIRCUIT DESCRIPTION
The front airbag sensor detects the deceleration

Page 185 of 4087

LEXUS SC400 1991  Service Repair Manual 
Preperation.
Check front airbag sensor circuit.
(Measure resistance between terminals +SR
and ±SR, +SL and ±SL of center airbag sen-
sor assembly connector.)
Check center airbag sensor assembly.Fro

Page 186 of 4087

LEXUS SC400 1991  Service Repair Manual 
INSPECTION PROCEDURE
When storing steering wheel pad, keep upper
surface of pad facing upward.
Preparation.
(1) Disconnect battery negative (±) terminal cable, and wait at least 20 seconds.
(2) Remo

Page 187 of 4087

LEXUS SC400 1991  Service Repair Manual 
3
Codes other than code 15 may be output at this
time, but this is not relevant to this check.Replace front airbag sensor.
NG
OK
(1) Turn ignition switch ACC or ON, and wait at least 20
seconds.
(2)

Page 188 of 4087

LEXUS SC400 1991  Service Repair Manual 
5Check harness between center airbag sensor assembly and front airbag
sensor.
(1) Disconnect center airbag sensor assembly
connector.
(2) Using service wires, connect +SR and ±SR, +SL and ±SL on th

Page 189 of 4087

LEXUS SC400 1991  Service Repair Manual 
MEMO
±
SRS AIRBAG TroubleshootingAB±73 
WhereEverybodyKnowsYourName

Page 190 of 4087

LEXUS SC400 1991  Service Repair Manual 
Diag. Code 22Airbag Warning Light System Malfunction
      CIRCUIT DESCRIPTION
The airbag warning light is located on the combination meter.
When the airbag system is normal, the airbag warning light
Trending: air filter, flat tire, clock reset, driver seat adjustment, power steering fluid, CD changer, wheel