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Home >> Toyota >> 2012 >> FJ Cruiser 4WD, Part Time T/Case Control >> Repair and Diagnosis (Single Page) >> Restraints >> Restraints Control Systems >> Supplemental Restraint System (Diagnostic Codes & 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
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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 center airbag sensor assembly, the spiral cable and the steering pad.

The circuit signals the SRS to deploy when deployment conditions are met.

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

DTC No. Detection Condition Trouble Area
B1810/53
  • Center airbag sensor assembly detects line short circuit signal in driver side squib 2nd step circuit 5 times during primary check.
  • Driver side squib 2nd step malfunction
  • Spiral cable malfunction
  • Center airbag sensor assembly malfunction
  • Instrument panel wire
  • Spiral cable
  • Steering pad (Driver side squib 2nd step)
  • Center airbag sensor assembly
B1811/53
  • Center airbag sensor assembly detects open circuit signal in driver side squib 2nd step circuit for 2 seconds.
  • Driver side squib 2nd step malfunction
  • Spiral cable malfunction
  • Center airbag sensor assembly malfunction
  • Instrument panel wire
  • Spiral cable
  • Steering pad (Driver side squib 2nd step)
  • Center airbag sensor assembly
B1812/53
  • Center airbag sensor assembly detects short circuit to ground signal in driver side 2nd step circuit for 0.5 seconds.
  • Driver side squib 2nd step malfunction
  • Spiral cable malfunction
  • Center airbag sensor assembly malfunction
  • Instrument panel wire
  • Spiral cable
  • Steering pad (Driver side squib 2nd step)
  • Center airbag sensor assembly
B1813/53
  • Center airbag sensor assembly detects short circuit to B+ signal in driver side squib 2nd step circuit for 0.5 seconds.
  • Driver side squib 2nd step malfunction
  • Spiral cable malfunction
  • Center airbag sensor assembly malfunction
  • Instrument panel wire
  • Spiral cable
  • Steering pad (Driver side squib 2nd step)
  • Center airbag sensor assembly