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DTC B1499/99 Multiplex Communication Circuit: Description

WARNING: This page is about a different car, the 2008 Toyota Yaris. However, it is still accessible from the selected car via links, so may be relevant.

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

DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE

DTC No. DTC Detection Conditions Trouble Area
B1499/99 Open in CAN communication line
  • Air conditioning amplifier power source circuit
  • Air conditioning amplifier
  • ECM
  • Combination meter assembly
  • CAN communication line