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Home >> Toyota >> 2003 >> Prius >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self Diagnostics >> Diagnostic Tests >> DTC P0115: Engine Coolant Temperature Sensor Circuit >> Diagnosis & Repair

Diagnosis & Repair

NOTE: Using Toyota hand-held tester or scan tool, read FREEZE FRAME data. Freeze frame data records engine conditions when malfunction is detected.

For circuit wiring diagram, diagnosis and repair procedure, see Fig 1-Fig 3 .

For ECM location, see Figure. For ECM connector terminal view, see Figure.

For testing of systems or components, see SYSTEM & COMPONENT TESTING - 4-CYLINDER article. For removal and installation of components, see REMOVAL & INSTALLATION - 4-CYLINDER article.

Fig 1: DTC P0115 Diagnostic Procedure (Steps 1-2)
G00247659Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: DTC P0115 Diagnostic Procedure (Steps 3-4)
G00247660Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 3: DTC P0115 Diagnostic Procedure (Step 5)
G00247661Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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