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Home >> Toyota >> 2021 >> 4Runner TRD Off-Road >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Airbag System - Diagnostic Codes (B1690-B1905) & Symptom Tests >> Airbag System >> DTC B1905-74: Short in Front Pretensioner Squib LH Circuit; DTC B1906-74: Open in Front Pretensioner Squib LH Circuit; DTC B1907-74: Short to GND in Front Pretensioner Squib LH Circuit; DTC B1908-74: Short to B+ in Front Pretensioner Squib LH Circuit [08/2015 - 08/2019] >> Caution / Notice / Hint

Caution / Notice / Hint

NOTE:

When disconnecting the cable from the negative (-) battery terminal while performing repairs, some systems need to be initialized after the cable is reconnected (Refer to INITIALIZATION [08/2015 - 08/2019] ).

HINT: 

To perform the simulation method, enter check mode (signal check) with the Techstream (Refer to CHECK MODE PROCEDURE [08/2015 - ] ), and then wiggle each connector of the airbag system or drive the vehicle on various types of road (Refer to DIAGNOSIS SYSTEM [08/2015 - 08/2019] ).

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