DTC P0517: Battery Temperature Sensor Circuit High: Wiring Diagram

WARNING: This page is about a different car, the 2015 Subaru XV Crosstrek. However, it is still accessible from the selected car via links, so may be relevant.

Engine electrical system < Ref. to WIRING DIAGRAM , Engine Electrical System.>

Fig 1: Battery Temperature Sensor Circuit - Wiring Diagram

Courtesy of SUBARU OF AMERICA, INC.

DTC PROCEDURE

Step	Check	Yes	No
1 CHECK CURRENT DATA. Start the engine. Using the Subaru Select Monitor, confirm the current data of hybrid powertrain control system, the value of «12V Auxiliary Battery Temperature». < Ref. to HYBRID POWERTRAIN CONTROL SYSTEM , OPERATION, Read Current Data.>	Is the value -40°C (-40°F) or less?	Go to step 2 .	Even if DTC is detected, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again. NOTE: In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.
2 CHECK HARNESS (OPEN CIRCUIT). Turn the ignition switch to OFF. Disconnect the connectors from the ECM and battery temperature sensor. Using a tester, measure the resistance of harness between ECM connector and battery temperature sensor connector. Connector & terminal (B137) No. 24 - (B523) No. 1: (B135) No. 30 - (B523) No. 2:	Is the resistance less than 1 Ω?	Go to step 3 .	Repair the open circuit in the harness between the ECM connector and battery temperature sensor connector.
3 CHECK HARNESS (SHORT TO POWER). Connect all connectors. Turn the ignition switch to ON. Measure the voltage between ECM connector and chassis ground. Connector & terminal (B137) No. 24 (+) - Chassis ground (-):	Is the voltage 5 V or more?	Repair the short circuit to power in harness between ECM connector and battery temperature sensor connector.	Replace the battery temperature sensor. < Ref. to BATTERY TEMPERATURE SENSOR .>