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Code 1: In-Car Sensor Error

WARNING: This page is about a different car, the 2004 Suzuki Verona. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Code 1 - In-Car Sensor Error Diagram
G01987522Courtesy of SUZUKI OF AMERICA CORP.

This code will set if the output of the in-car sensor indicates a probable short circuit or an open in the sensor or the associated wiring harness, or a malfunction of the ATC controller.

Fig 2: Identifying Code 1 - In-Car Sensor Table (1 Of 2)
G01987523Courtesy of SUZUKI OF AMERICA CORP.
Fig 3: Identifying Code 1 - In-Car Sensor Table (2 Of 2)
G01987524Courtesy of SUZUKI OF AMERICA CORP.