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Home >> Toyota >> 2019 >> RAV4 XLE, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 44 (Airbag System - Diagnostic Codes (2 Of 2) & Symptom Tests) >> Airbag System >> DTC B1925: Short in Rear P/T Squib (LH) Circuit; DTC B1926: Open in Rear P/T Squib (LH) Circuit; DTC B1927: Short in Rear P/T Squib (LH) Circuit (to Ground); DTC B1928: Short in Rear P/T Squib (LH) Circuit (to +B) [08/2020 - ] >> Description

DTC B1925: Short in Rear P/T Squib (LH) Circuit; DTC B1926: Open in Rear P/T Squib (LH) Circuit; DTC B1927: Short in Rear P/T Squib (LH) Circuit (to Ground); DTC B1928: Short in Rear P/T Squib (LH) Circuit (to +B) [08/2020 - ]: Description

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The rear seat belt pretensioner LH circuit consists of the airbag ECU assembly and rear seat outer belt assembly LH.

This circuit instructs the SRS to deploy when deployment conditions are met.

These DTCs are stored when a malfunction is detected in the rear seat belt pretensioner LH circuit.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Test Mode / Check Mode
B1925 Short in Rear P/T Squib (LH) Circuit One of the following conditions is met:
  • The airbag ECU assembly detects a line short circuit signal 5 times in the rear seat belt pretensioner LH circuit during the primary check.
  • A rear seat outer belt assembly LH malfunction.
  • An airbag ECU assembly malfunction.
  • Floor wire
  • Rear seat outer belt assembly LH
  • Airbag ECU assembly
Comes on Applicable
B1926 Open in Rear P/T Squib (LH) Circuit One of the following conditions is met:
  • The airbag ECU assembly detects an open circuit signal in the rear seat belt pretensioner LH circuit for 2 seconds.
  • A rear seat outer belt assembly LH malfunction.
  • An airbag ECU assembly malfunction.
  • Floor wire
  • Rear seat outer belt assembly LH
  • Airbag ECU assembly
Comes on Applicable
B1927 Short in Rear P/T Squib (LH) Circuit (to Ground) One of the following conditions is met:
  • The airbag ECU assembly detects a short circuit to ground signal in the rear seat belt pretensioner LH circuit for 0.5 seconds.
  • A rear seat outer belt assembly LH malfunction.
  • An airbag ECU assembly malfunction.
  • Floor wire
  • Rear seat outer belt assembly LH
  • Airbag ECU assembly
Comes on Applicable
B1928 Short in Rear P/T Squib (LH) Circuit (to +B) One of the following conditions is met:
  • The airbag ECU assembly detects a short circuit to B+ signal in the rear seat belt pretensioner LH circuit for 0.5 seconds.
  • A rear seat outer belt assembly LH malfunction.
  • An airbag ECU assembly malfunction.
  • Floor wire
  • Rear seat outer belt assembly LH
  • Airbag ECU assembly
Comes on Applicable