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On-Board Diagnostic System Description

NOTE: The diagnostic information as diagnostic trouble code (DTC) can be known by using SUZUKI scan tool (1). For further details, refer to "DTC CHECK  ".

HVAC control module (2) can detect malfunctions, which may occur in the following area.

When HVAC control module detects malfunction, the diagnostic information as diagnostic trouble code (DTC) is stored in the memory of the module. By performing the DTC check procedure, the diagnostic information can be known by reading the flashing pattern of the fresh air indicator lamp (3) and recirculation indicator lamp (4). For the procedure, refer to "DTC CHECK  ".

When HVAC control module detects malfunction, the rear defogger indicator lamp (5) flashes on and off for 15 seconds for a notice.

Fig 1: Connecting Hand - Held Tester
G04015656Courtesy of SUZUKI OF AMERICA CORP.