DTC BMS_f061: Battery Control ECU Power Supply Problem [09/2013 - ]: Procedure
WARNING: This page is about a different car, the 2014 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
- INSPECT AUXILIARY BATTERY
- Inspect the auxiliary battery voltage. Refer to ON-VEHICLE INSPECTION [09/2013 - ]
.
OK
Battery is not depleted.
NG → See step 4
OK: Go to next step
- Inspect the auxiliary battery voltage. Refer to ON-VEHICLE INSPECTION [09/2013 - ]
.
- CHECK HV BATT FUSE
- Remove the HV BATT fuse from the No. 2 motor compartment room relay block assembly.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Switch Condition Specified Condition HV BATT fuse terminals Always Below 1 Ω TEXT IN ILLUSTRATION*1 No. 2 Motor Compartment Room Relay Block Assembly *2 HV BATT Fuse
NG → CHECK FOR SHORT IN ALL HARNESSES AND CONNECTORS CONNECTED TO FUSE AND REPLACE FUSE
OK: Go to next step
- CHECK HARNESS AND CONNECTOR (AUXILIARY BATTERY - ELECTRIC VEHICLE BATTERY)
- Disconnect the connector from the auxiliary battery positive terminal.
- Disconnect connector h1 from the electric vehicle battery.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Switch Condition Specified Condition Battery positive terminal - h1-2 (+B) Power switch off Below 1 Ω Battery positive terminal - h1-14 (+B2) Power switch off Below 1 Ω Battery positive terminal or h1-2 (+B) - Body ground and other terminals Power switch off 1 kΩ or higher Battery positive terminal or h1-14 (+B2) - Body ground and other terminals Power switch off 1 kΩ or higher TEXT IN ILLUSTRATION*a Front view of wire harness connector
(to Electric Vehicle Battery Assembly)
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK → See step 5
- RECHARGE AUXILIARY BATTERY. Refer to ON-VEHICLE INSPECTION [09/2013 - ] - Step 3
- REPLACE ELECTRIC VEHICLE BATTERY ASSEMBLY. Refer to REMOVAL [09/2013 - ]