DTC U1711: Lost Communication With Battery "2" Monitor Module: 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.
Hybrid system < Ref. to WIRING DIAGRAM , Hybrid Electric Vehicle System.>
DTC PROCEDURE
| Step | Check | Yes | No |
|---|---|---|---|
| 1 CHECK CONNECTOR Check the connector (B598) of 12V engine restart battery sensor |
Is there looseness or poor contact of connector? | Repair the connector. | Go to step 2 . |
2 CHECK HARNESS (OPEN CIRCUIT).
|
Is the resistance less than 1 Ω? | Go to step 3 . | Repair the open circuit of the harness between the HPCM connector and the 12 volt engine restart battery and the 12V engine restart battery sensor connector or replace fuses. |
3 CHECK HARNESS (SHORT TO GROUND).
|
Is the resistance 1 MΩ or more? | Go to step 4 . | Repair ground short circuit of harness between the HPCM connector and the 12V engine restart battery sensor connector. |
| 4 CHECK HARNESS (SHORT TO POWER). Using a tester, measure the voltage between the HPCM connector and chassis ground. Connector & terminal (B605) No. 4 (+) - Chassis ground (-): |
Is the voltage less than 1 V? | Go to step 5 . | Repair the short circuit to power in harness between the HPCM connector and the 12V engine restart battery sensor connector. |
| 5 CHECK BATTERY. Check the 12 volt engine restart battery. < Ref. to BATTERY .> |
Is the condition normal? | Replace the 12V engine restart battery sensor. < Ref. to BATTERY SENSOR .> | Replace or charge the battery. |