DSD Information System
Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Body & Frame >> Seats >> Seat Heater System - Diagnostic Codes & Symptom Tests >> Seat Heater System >> DTC B14C1-11: Front Left Seat Heat Sensor Circuit Short to Ground; DTC B14C1-15: Front Left Seat Heat Sensor Circuit Short to Battery or Open [11/2023 - ] >> Description

DTC B14C1-11: Front Left Seat Heat Sensor Circuit Short to Ground; DTC B14C1-15: Front Left Seat Heat Sensor Circuit Short to Battery or Open [11/2023 - ]: Description

Output to the front seat cushion heater temperature sensor stops if one of the following occurs: 1) the temperature sensor is open or shorted; or 2) the temperature sensor is damaged and its output value does not change.

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from Priority
B14C1-11 Front Left Seat Heat Sensor Circuit Short to Ground A short to ground in the temperature sensor circuit of the front left seat heater occurs for 4 seconds or more.
  • Front seat cushion heater assembly LH
  • Air conditioning amplifier assembly
  • Wire harness or connector
Air Conditioner A
B14C1-15 Front Left Seat Heat Sensor Circuit Short to Battery or Open A short to +B or open in the temperature sensor circuit of the front left seat heater occurs for 4 seconds or more.
  • Front seat cushion heater assembly LH
  • Air conditioning amplifier assembly
  • Wire harness or connector
Air Conditioner A