EV Charger Power Supply System: Notes

WARNING: This page is about a different variant/trim than selected.

CAUTION: Before performing diagnosis, refer to "CAUTION" in "General Description". Ref. to PLUG-IN BATTERY CHARGER (DIAGNOSTICS)>GENERAL DESCRIPTION>CAUTION .

Wiring diagram:

Charging system Ref. to WIRING SYSTEM (CROSSTREK MODEL (HEV))>CHARGING SYSTEM>WIRING DIAGRAM .

Courtesy of SUBARU OF AMERICA, INC.

CHECK DTC .
Using the Subaru Select Monitor, read all DTCs. Ref. to COMMON (DIAG)>DIAGNOSTIC TROUBLE CODE (DTC) .

Are any DTCs displayed?

Yes : Perform the diagnosis for the displayed DTCs.

No : Go to 2.
CHECK Electric vehicle charger assembly (GROUND) .
Using a tester, measure the resistance between the Electric vehicle charger assembly case and chassis ground.

Connector & terminal

Electric vehicle charger assembly unit case - Chassis ground:

NOTE: Because the Electric vehicle charger assembly uses a case ground structure, if the check results are outside the standard range, check the tightening conditions of the ground bolt.

Is the resistance less than 1 kΩ?

Yes : Go to 3.

No : Tighten the Electric vehicle charger assembly connecting bolts.
CHECK Electric vehicle charger assembly (AMD2 VOLTAGE) .
CAUTION: Make sure to wear insulated gloves and protective goggles during the work.
1. Check that the Service plug is disconnected. Ref. to HYBRID ELECTRIC VEHICLE>SERVICE PLUG .
2. Connect the Battery (12V) ground terminal. Ref. to REPAIR CONTENTS>REPAIR CONTENTS>NOTE>BATTERY .
3. Using a tester, measure the voltage between Electric vehicle charger assembly connector and chassis ground. (With the connector connected)
  Connector & terminal
  
  (R516) No. 1 (+) - Chassis ground (-):
Is the voltage 11 - 14 V?

Yes : Go to 4.

No : Go to 5.
CHECK THE Electric vehicle charger assembly (IGCT VOLTAGE) .
1. Turn to IG ON.
2. Using a tester, measure the voltage between Electric vehicle charger assembly connector and chassis ground. (With the connector connected)
  Connector & terminal
  
  (HV31) No. 6 (+) - Chassis ground (-):
Is the voltage 11 - 14 V?

Yes : The power supply circuit is normal.

No : Go to 6.
CHECK FUSE (SBF-9 30A FUSE) .
1. Turn the ignition to OFF.
2. Disconnect the ground terminal of Battery (12V). Ref. to REPAIR CONTENTS>REPAIR CONTENTS>NOTE>BATTERY .
3. Remove the SBF-9 30A FUSE from the Relay & fuse box (F/B). Ref. to HYBRID ELECTRIC VEHICLE>RELAY AND FUSE .
4. Check SBF-9 30A FUSE.
Is the SBF-9 30A FUSE OK?

Yes : Repair or replace the Wire harness between Relay & fuse box (F/B) and Electric vehicle charger assembly connector.

No : Go to 9.
CHECK THE FUSE (F/B NO. 11 10A FUSE) .
1. Turn the ignition to OFF.
2. Disconnect the ground terminal of Battery (12V). Ref. to REPAIR CONTENTS>REPAIR CONTENTS>NOTE>BATTERY .
3. Remove the F/B NO. 11 10A FUSE from the Relay & fuse box (F/B). Ref. to HYBRID ELECTRIC VEHICLE>RELAY AND FUSE .
4. Check F/B NO. 11 10A FUSE.
Is the IGCT SCENE FUSE OK?

Yes : Go to 7.

No : Go to 10.
CHECK Wire harness AND CONNECTOR (Relay & fuse box (F/B) - Electric vehicle charger assembly) .
1. Disconnect Electric vehicle charger assembly connector (HV31).
2. Using a tester, measure the resistance between Relay & fuse box (F/B) and Electric vehicle charger assembly connector.
  Connector & terminal
  
  F/B NO. 11 10A FUSE (unit side) - (HV31) No. 6:
Is the resistance less than 1 Ω?

Yes : Go to 8.

No : Repair or replace the Wire harness between Relay & fuse box (F/B) and Electric vehicle charger assembly connector.
CHECK RELAY UNIT (IGCT scene relay) .
1. Remove the IGCT scene relay from the Main fuse box (M/B).
2. Check the IGCT scene relay unit. Ref. to HYBRID ELECTRIC VEHICLE>RELAY AND FUSE .
Is the IGCT scene relay OK?

Yes : Repair or replace the harness between IGCT scene relay holder and F/B NO. 11 10A FUSE holder.

No : Replace IGCT scene relay. Ref. to HYBRID ELECTRIC VEHICLE>RELAY AND FUSE .
CHECK Wire harness AND CONNECTOR (Electric vehicle charger assembly - Main fuse box (M/B)) .
CAUTION: Make sure to wear insulated gloves and protective goggles during the work.
1. Disconnect Electric vehicle charger assembly connector (HV31).
2. Using a tester, measure the resistance between terminals in Electric vehicle charger assembly connector, and between Electric vehicle charger assembly connector and chassis ground.
  Connector & terminal
  
  (R516) No. 1 - Chassis ground:
  
  (R516) No. 1 - (R516) No. 2:
Is the resistance 10 kΩ or more?

Yes : Replace SBF-9 30A FUSE. Ref. to HYBRID ELECTRIC VEHICLE>RELAY AND FUSE .

No : Repair or replace the Wire harness between Electric vehicle charger assembly and SBF-9 30A FUSE. Replace SBF-9 30A FUSE. Ref. to HYBRID ELECTRIC VEHICLE>RELAY AND FUSE .
CHECK Wire harness AND CONNECTOR (Electric vehicle charger assembly - Main fuse box (M/B)) .
CAUTION: Make sure to wear insulated gloves and protective goggles during the work.
1. Disconnect Electric vehicle charger assembly connector (HV31).
2. Using a tester, measure the resistance between terminals in Electric vehicle charger assembly connector, and between Electric vehicle charger assembly connector and chassis ground.
  Connector & terminal
  
  (HV31) No. 6 - Chassis ground:
  
  (HV31) No. 6 - (HV31) No. 1 - 40:
Is the resistance 10 kΩ or more?

Yes : Replace F/B NO. 11 10A FUSE. Ref. to HYBRID ELECTRIC VEHICLE>RELAY AND FUSE .

No : Repair or replace the Wire harness between Electric vehicle charger assembly and F/B NO. 11 10A FUSE. Replace F/B NO. 11 10A FUSE.