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DTC P0125: Engine Coolant Temperature (ECT) Insufficient for Closed Loop Fuel Control: Notes

WARNING: This page is about a different car, the 2008 Suzuki Reno, 2008 Suzuki Forenza, 2007 Suzuki Reno, and 2007 Suzuki Forenza. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Engine Coolant Temperature Sensor - Circuit Diagram

Courtesy of SUZUKI OF AMERICA CORP.