LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2021 >> C-HR Limited >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Supplemental Restraint System - Diagnostic Codes (B1627-B1656) >> Airbag System >> DTC B1656: Seat Belt Buckle Switch (LH) [09/2019 - ] >> Description

DTC B1656: Seat Belt Buckle Switch (LH) [09/2019 - ]: Description

The seat belt buckle switch LH circuit consists of the airbag sensor assembly and seat belt buckle switch LH (front seat inner belt assembly LH).

DTC B1656 is stored when a malfunction is detected in the seat belt buckle switch LH circuit.

DTC No. Detection Item DTC Detection Condition Trouble Area Test Mode / Check Mode
B1656 Seat Belt Buckle Switch (LH) Any of the following conditions is met:
  • The airbag sensor assembly detects a line short in the seat belt buckle switch LH circuit.
  • The airbag sensor assembly detects a short to ground in the seat belt buckle switch LH circuit.
  • The airbag sensor assembly detects a short to B+ in the seat belt buckle switch LH circuit.
  • The airbag sensor assembly detects an open in the seat belt buckle switch LH circuit.
  • Seat belt buckle switch LH malfunction
  • Airbag sensor assembly malfunction
  • Floor wire
  • Seat belt buckle switch LH (Front seat inner belt assembly LH)
  • Airbag sensor assembly
Does not apply to test/check mode
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 belt buckle switch LH circuit ◦ - - - - -
The airbag sensor assembly detects a short to ground in the seat belt buckle switch LH circuit - ◦ - - - -
The airbag sensor assembly detects a short to B+ in the seat belt buckle switch LH circuit - - ◦ - - -
The airbag sensor assembly detects an open in the seat belt buckle switch LH circuit - - - ◦ - -
Seat belt buckle switch LH 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.