1991 LEXUS SC400 Service Repair Manual

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LEXUS SC400 1991  Service Repair Manual 
RS±58
RS±59
RS±63RS±65
RS±67
RS±68
RS±63
RS±59
RS±59
RS±59
±
SUPPLEMENTAL RESTRAINT SYSTEM TROUBLESHOOTINGRS±57 
WhereEverybodyKnowsYourName

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LEXUS SC400 1991  Service Repair Manual

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LEXUS SC400 1991  Service Repair Manual 
SRS WARNING LIGHT CHECK
DIAGNOSIS INSPECTION
(a)  Turn the ignition switch to ACC or ON and check that the SRSwarning light lights up.
(b)  Check that the SRS warning light goes out after approx. 6
s

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LEXUS SC400 1991  Service Repair Manual 
2.  READ DIAGNOSTIC TROUBLE CODERead the 2±digit diagnostic trouble code as indicated by the
number  of times the SRS warning light blinks. As an example,
the blinking patterns; normal, 11 and 31 ar

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LEXUS SC400 1991  Service Repair Manual 
DIAGNOSTIC TROUBLE CODES
±
SUPPLEMENTAL RESTRAINT SYSTEM TROUBLESHOOTINGRS±61 
WhereEverybodyKnowsYourName

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LEXUS SC400 1991  Service Repair Manual 
HINT:
When the SRS warning light remains lit up and the diagnostic trouble code in\
 the normal code, this means a
source voltage drop.
This malfunction is not stored in memory by the center airbag

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LEXUS SC400 1991  Service Repair Manual 
DIAGNOSTIC TROUBLE CODE
CLEARANCE
Using diagnostic check wire:(a)  Connect  the 2 service wires to terminals Tc and AB of DLC1.
(b)  Turn the ignition switch ACC or ON And wait approx. 6 seconds.
(c)

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LEXUS SC400 1991  Service Repair Manual 
Using LEXUS hand±held tester:(a)  Hook up the LEXUS hand±held tester to the DLC1 or DLC2.
(b)  Clear the diagnostic trouble codes by following the prompts on the tester screen.
HINT: Please refer t