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Home >> Toyota >> 2021 >> C-HR LE >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Supplemental Restraint System - Diagnostic Codes (B1627-B1656) >> Airbag System >> DTC B1653: Driver Side Seat Position Sensor [09/2019 - ] >> Description

DTC B1653: Driver Side Seat Position Sensor [09/2019 - ]: Description

The seat position airbag sensor circuit consists of the airbag sensor assembly and seat position airbag sensor.

DTC B1653 is stored when a malfunction is detected in the seat position airbag sensor circuit.

DTC No. Detection Item DTC Detection Condition Trouble Area Test Mode / Check Mode
B1653 Driver Side Seat Position Sensor
  • The airbag sensor assembly detects a line short in the seat position airbag sensor circuit.
  • The airbag sensor assembly detects a short to ground in the seat position airbag sensor circuit.
  • The airbag sensor assembly detects a short to B+ in the seat position airbag sensor circuit.
  • The airbag sensor assembly detects an open in the seat position airbag sensor circuit.
  • Seat position airbag sensor malfunction
  • Airbag sensor assembly malfunction
  • Floor wire
  • Front No. 2 seat wire LH*1
  • Front seat inner belt assembly LH
  • Seat position airbag sensor
  • Airbag sensor assembly
Does not apply to test/check mode
  1. *1: for Power Seat
DTC DETECTION CONDITIONS:

  Vehicle Condition
Pattern 1 Pattern 2 Pattern 3 Pattern 4 Pattern 5 Pattern 6
Diagnosis Condition Ignition switch ON
Malfunction Status The airbag sensor assembly detects a line short in the seat position airbag sensor circuit - - - - -
The airbag sensor assembly detects a short to ground in the seat position airbag sensor circuit - - - - -
The airbag sensor assembly detects a short to B+ in the seat position airbag sensor circuit - - - - -
The airbag sensor assembly detects an open in the seat position airbag sensor circuit - - - - -
Seat position airbag sensor malfunction - - - - -
Airbag sensor assembly malfunction - - - - -
Detection Time - - - - - -
Number of Trips 1 trip 1 trip 1 trip 1 trip 1 trip 1 trip

HINT: 

DTC will be output when conditions for either of the patterns in the table above are met.