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Home >> Toyota >> 2021 >> C-HR LE >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Supplemental Restraint System - Diagnostic Codes (B1660-B1805) >> Airbag System >> DTC B1660: P Seat Airbag Active Mode Indicator [09/2019 - ] >> Description

DTC B1660: P Seat Airbag Active Mode Indicator [09/2019 - ]: Description

The passenger airbag ON/OFF indicator circuit consists of the airbag sensor assembly and passenger airbag ON/OFF indicator (clock assembly).

The passenger airbag ON/OFF indicator indicates the operation condition of the instrument panel passenger without door airbag assembly.

DTC B1660 is stored when a malfunction is detected in the passenger airbag ON/OFF indicator circuit.

DTC No. Detection Item DTC Detection Condition Trouble Area Test Mode / Check Mode
B1660 P Seat Airbag Active Mode Indicator Any of the following conditions is met:
  • The airbag sensor assembly detects a line short in the passenger airbag ON/OFF indicator circuit.
  • The airbag sensor assembly detects a short to ground in the passenger airbag ON/OFF indicator circuit.
  • The airbag sensor assembly detects a short to B+ in the passenger airbag ON/OFF indicator circuit.
  • The airbag sensor assembly detects an open in the passenger airbag ON/OFF indicator circuit.
  • Passenger airbag ON/OFF indicator malfunction
  • Airbag sensor assembly malfunction
  • Instrument panel wire
  • Instrument panel junction block assembly
  • Passenger airbag ON/OFF indicator (Clock assembly)
  • 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 passenger airbag ON/OFF indicator circuit ◦ - - - - -
The airbag sensor assembly detects a short to ground in the passenger airbag ON/OFF indicator circuit - ◦ - - - -
The airbag sensor assembly detects a short to B+ in the passenger airbag ON/OFF indicator circuit - - ◦ - - -
The airbag sensor assembly detects an open in the passenger airbag ON/OFF indicator circuit - - - ◦ - -
Passenger airbag ON/OFF indicator 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.