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Home >> Toyota >> 2018 >> Highlander XLE, FWD >> Repair and Diagnosis >> Accessories & Equipment >> Warning Systems >> Lane Departure Alert System - Diagnostic Codes & Circuit Tests - (Except Hybrid) >> Lane Departure Alert System >> DTC C1AA2: Vehicle Speed Tolerance Malfunction [12/2013 - 11/2016] >> Description

DTC C1AA2: Vehicle Speed Tolerance Malfunction [12/2013 - 11/2016]: Description

The lane departure warning camera receives the vehicle speed tolerance signal from the combination meter assembly via CAN communication to control the lane departure alert system. When the lane departure warning camera receives a malfunction signal, DTC C1AA2 is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1AA2 Vehicle Speed Tolerance Malfunction
  • 2 seconds or more have elapsed after the engine switch turned on (IG).
  • IG voltage is 10 V or more.
  • IG voltage is 10 V or more for 2 seconds or more.
  • While the engine switch is on (IG), a malfunction signal is received from the combination meter assembly for 50 seconds or more.
  • Meter/gauge system
  • Lane departure warning camera