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Home >> Toyota >> 2016 >> Highlander Limited, FWD >> Repair and Diagnosis >> Accessories & Equipment >> Warning Systems >> Lane Departure Alert System - Diagnostic Codes & Circuit Tests - (Except Hybrid) >> Lane Departure Alert System >> DTC C1AA7: Skid Control Buzzer Circuit [12/2013 - 11/2016] >> Description

DTC C1AA7: Skid Control Buzzer Circuit [12/2013 - 11/2016]: Description

The lane departure warning camera sends a buzzer request signal to the skid control buzzer assembly*1 or lane departure warning buzzer*2 to sound the buzzer. When the lane departure warning camera detects a malfunction in the buzzer circuit, the lane departure warning camera stores DTC C1AA7.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1AA7 Skid Control Buzzer Circuit When IG voltage is 8 to 16 V and both of the following conditions are met:
  • Skid control buzzer assembly*1 or lane departure warning buzzer*2 on malfunction is detected for 240 ms or more.
  • Skid control buzzer assembly*1 or lane departure warning buzzer*2 off malfunction is detected for 5 seconds or more.
  • Harness or connector
  • Skid control buzzer assembly*1
  • Lane departure warning buzzer*2
  • Lane departure warning camera
*1: w/ Dynamic Radar Cruise Control System
*2: w/o Dynamic Radar Cruise Control System