DTC P0516 Battery Temperature Sensor Circuit Low: Notes

DTC detecting condition:

Immediately at fault recognition

CAUTION:

After servicing or replacing faulty parts, perform Clear Memory Ref. to ENGINE (DIAGNOSTICS) (H4DOTC)>Clear Memory Mode . and Inspection Mode Ref. to ENGINE (DIAGNOSTICS) (H4DOTC)>Inspection Mode .
Use the check board when measuring the ECM terminal voltage and resistance.

Wiring diagram:

Engine Electrical System Ref. to WIRING SYSTEM>Engine Electrical System>WIRING DIAGRAM .

Fig 1: Battery Temperature Sensor Circuit Low - Wiring Diagram

G10410041

Courtesy of SUBARU OF AMERICA, INC.

CHECK CURRENT DATA.
1. Start the engine.
2. Using the Subaru Select Monitor, read the value in [Battery temperature].
  NOTE: For detailed procedures, refer to "Data Monitor". Ref. to ENGINE (DIAGNOSTICS) (H4DOTC)>Subaru Select Monitor .
Is the value of [Battery temperature] 100°C (212°F) or more?
- Yes: Go to 2.
- No: Even if DTC is detected, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis.
  NOTE: In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.
CHECK HARNESS BETWEEN ECM AND BATTERY CURRENT & TEMPERATURE SENSOR CONNECTOR.
1. Turn the ignition switch to OFF.
2. Disconnect the connectors from the battery current & temperature sensor.
3. Disconnect the connector from ECM.
4. Measure the resistance between ECM and engine ground.
  Connector & terminal
  
  (B134) No. 41 - Engine ground:
Is the resistance 1 MΩ or more?
- Yes: Replace the battery current & temperature sensor. Ref. to STARTING/CHARGING SYSTEMS(H4DO)>Battery Current & Temperature Sensor .
- No: Repair the ground short circuit of harness between ECM and battery current & temperature sensor connector.