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Home >> Toyota >> 2012 >> Highlander Limited, FWD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Air Conditioning (Automatic) (Diagnostic Codes & Circuit Tests) (Except Hybrid) >> AIR CONDITIONING SYSTEM (for Automatic Air Conditioning System) >> DTC B1499/99: Multiplex Communication Circuit >> Description

DTC B1499/99: Multiplex Communication Circuit: Description

The air conditioning amplifier communicates data with the ECM and combination meter through the CAN communication system.

DTC No. DTC Detection Condition Trouble Area
B1499/99 Open in CAN communication line
  • Air conditioning amplifier
  • ECM
  • Combination meter
  • CAN communication line
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