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Home >> Lexus >> 2008 >> IS 250 RWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 28 (Heating / Air Conditioning System) >> Air Conditioning System >> DTC B1497/97 BUS IC Communication Malfunction >> Description

DTC B1497/97 BUS IC Communication Malfunction: Description

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

The air conditioning harness connects the A/C amplifier and each servo. The A/C amplifier supplies power and sends operation instructions to each servo through the air conditioning harness. Each servo sends the damper position information to the A/C amplifier.

DTC DETECTION CONDITION AND TROUBLE AREA

DTC No DTC Detection Condition Trouble Area
B1497/97 Communication line error or open
  • Air conditioning harness
  • A/C amplifier