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Home >> Toyota >> 2019 >> Sequoia SR5, 4WD >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Supplemental Restraint System - Diagnostic Codes (2 Of 3) >> Airbag System >> DTC B1800-51: Short in Driver Side Squib Circuit; DTC B1801-51: Open in Driver Side Squib Circuit; DTC B1802-51: Short to GND in Driver Side Squib Circuit; DTC B1803-51: Short to B+ in Driver Side Squib Circuit [08/2015 - 08/2017] >> Description

DTC B1800-51: Short in Driver Side Squib Circuit; DTC B1801-51: Open in Driver Side Squib Circuit; DTC B1802-51: Short to GND in Driver Side Squib Circuit; DTC B1803-51: Short to B+ in Driver Side Squib Circuit [08/2015 - 08/2017]: Description

  1. The driver side squib circuit consists of the center airbag sensor, the spiral cable, and the steering pad.
  2. The circuit instructs the SRS to deploy when deployment conditions are met.
  3. These DTCs are stored when a malfunction is detected in the driver side squib circuit.
DTC Code Detection Condition Trouble Area
B1800-51 When one of following conditions is met:
  • The center airbag sensor receives a line short circuit signal 5 times in the driver side squib circuit during primary check.
  • Driver side squib malfunction
  • Spiral cable malfunction
  • Center airbag sensor malfunction
  • Instrument panel wire
  • Spiral cable
  • Steering pad (Driver side squib)
  • Center airbag sensor assembly
B1801-51 When one of following conditions is met:
  • The center airbag sensor receives an open circuit signal in the driver side squib circuit for 2 seconds.
  • Driver side squib malfunction
  • Spiral cable malfunction
  • Center airbag sensor malfunction
  • Instrument panel wire
  • Spiral cable
  • Steering pad (Driver side squib)
  • Center airbag sensor assembly
B1802-51 When one of following conditions is met:
  • The center airbag sensor receives a short circuit to ground signal in the driver side squib circuit for 0.5 seconds.
  • Driver side squib malfunction
  • Spiral cable malfunction
  • Center airbag sensor malfunction
  • Instrument panel wire
  • Spiral cable
  • Steering pad (Driver side squib)
  • Center airbag sensor assembly
B1803-51 When one of following conditions is met:
  • The center airbag sensor receives a short circuit to B+ signal in the driver side squib circuit for 0.5 seconds.
  • Driver side squib malfunction
  • Spiral cable malfunction
  • Center airbag sensor malfunction
  • Instrument panel wire
  • Spiral cable
  • Steering pad (Driver side squib)
  • Center airbag sensor assembly
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