Subaru Crosstrek Service Manual: Dtc p0517 battery temperature sensor circuit high

DTC detecting condition:

Immediately at fault recognition

CAUTION:

After servicing or replacing faulty parts, perform Clear Memory Mode Clear Memory Mode > OPERATION">, and Inspection Mode Inspection Mode > PROCEDURE">.

1.CHECK CURRENT DATA.

1) Start the engine.

2) Read the value of «Battery temperature» using the Subaru Select Monitor.

NOTE:

For detailed operation procedures, refer to “Current Data Display For Engine”. Subaru Select Monitor">

Is the value of «Battery temperature» −40°C (−40°F) or less?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0517 BATTERY TEMPERATURE SENSOR CIRCUIT HIGH">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 FOR POOR CONTACT.

Check for poor contact between the ECM and battery temperature sensor connectors.

Is there poor contact of the ECM or battery temperature sensor connectors?

Repair any poor contact between the ECM and battery temperature sensor connectors.

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0517 BATTERY TEMPERATURE SENSOR CIRCUIT HIGH">Go to Step 3.

3.CHECK HARNESS BETWEEN ECM AND BATTERY TEMPERATURE SENSOR CONNECTOR.

1) Turn the ignition switch to OFF.

2) Disconnect the connector from ECM.

3) Disconnect the connector from the battery temperature sensor.

4) 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 ??

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0517 BATTERY TEMPERATURE SENSOR CIRCUIT HIGH">Go to Step 4.

Repair the harness and connector.

NOTE:

In this case, repair the following item:

• Open circuit in harness between ECM connector and battery temperature sensor connector

• Poor contact of joint connector

4.CHECK HARNESS BETWEEN ECM AND BATTERY TEMPERATURE SENSOR CONNECTOR.

1) Connect all connectors.

2) Turn the ignition switch to ON.

3) 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. Battery Current & Temperature Sensor">

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