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Home >> Lexus >> 2013 >> ES 350 >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Supplemental Restraint System (Diagnostic Codes (B1650/32 - B1928/78) & Symptom Tests)) >> Airbag System >> DTC B1810/53: Short in Driver Side Squib 2nd Step Circuit; DTC B1811/53: Open in Driver Side Squib 2nd Step Circuit; DTC B1812/53: Short to GND in Driver Side Squib 2nd Step Circuit; DTC B1813/53: Short to B+ in Driver Side Squib 2nd Step Circuit >> Description

DTC B1810/53: Short in Driver Side Squib 2nd Step Circuit; DTC B1811/53: Open in Driver Side Squib 2nd Step Circuit; DTC B1812/53: Short to GND in Driver Side Squib 2nd Step Circuit; DTC B1813/53: Short to B+ in Driver Side Squib 2nd Step Circuit: Description

The driver side squib 2nd step circuit consists of the airbag sensor assembly, spiral cable with sensor sub-assembly and horn button assembly.

The airbag sensor assembly uses this circuit to deploy the airbag when deployment conditions are met.

These DTCs are stored when a malfunction is detected in the driver side squib 2nd step circuit.

DTC No. DTC Detection Condition Trouble Area
B1810/53
  • The airbag sensor assembly receives a line short circuit signal in the driver side squib 2nd step circuit during primary check.
  • Spiral cable with sensor sub-assembly malfunction
  • Driver side squib 2nd step malfunction
  • Airbag sensor assembly malfunction
  • Instrument panel wire
  • Spiral cable with sensor sub-assembly
  • Horn button assembly (Driver side squib 2nd step)
  • Airbag sensor assembly
B1811/53
  • The airbag sensor assembly receives an open circuit signal in the driver side squib 2nd step circuit.
  • Spiral cable with sensor sub-assembly malfunction
  • Driver side squib 2nd step malfunction
  • Airbag sensor assembly malfunction
B1812/53
  • The airbag sensor assembly receives a short circuit to ground signal in the driver side squib 2nd step circuit.
  • Spiral cable with sensor sub-assembly malfunction
  • Driver side squib 2nd step malfunction
  • Airbag sensor assembly malfunction
B1813/53
  • The airbag sensor assembly receives a short circuit to B+ signal in the driver side squib 2nd step circuit.
  • Spiral cable with sensor sub-assembly malfunction
  • Driver side squib 2nd step malfunction
  • Airbag sensor assembly malfunction