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Home >> Toyota >> 2012 >> Highlander Hybrid >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Air Conditioning (Automatic) (Diagnostic Codes & Circuit Tests) (Hybrid) >> AIR CONDITIONING SYSTEM (for Automatic Air Conditioning System) >> DTC B1498/98: Communication Malfunction (A/C Inverter Local) >> Inspection Procedure

Inspection Procedure

WARNING:
  • Wear electrically insulated gloves and pull out the service plug grip before inspection as procedures may require disconnecting high-voltage connectors. Be sure to carry the removed service plug grip to prevent other technicians from accidentally reinstalling it.
  • Do not touch the high-voltage connectors or terminals for 10 minutes after the service plug grip is removed.
  • Verify that the voltage of the inverter with converter assembly is 0 V before working inside the inverter with converter assembly.
NOTE:

Depending on the timing of the power supply to the 12 V power supply circuit and high-voltage circuit when the ignition switch to ON (READY), an abnormal information signal may be output, causing this DTC to be stored. If the output DTC is a code that was memorized in the past, check the fuses and wire harnesses. If there is no malfunction, erase the DTC.

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