DTC P0560-14: System Voltage (BATT) Circuit Short to Ground or Open [12/2019 - 11/2023]: Procedure

1. Check the connector connections and contact pressure of the relevant terminals for the hybrid vehicle control ECU connectors.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE [12/2019 - ]

   OK

   The connectors are connected securely and there are no contact pressure problems.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

CONNECT SECURELY 

Result: 

OK 

See step  2

1. Turn the ignition switch off.
2. Measure the voltage according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a

   Component with harness connected (Hybrid Vehicle Control ECU)

   -

   -

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   H67-27 (BATT) - H67-3 (E1)	Ignition switch off	11 to 14 V

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE HYBRID VEHICLE CONTROL ECU. Refer to  REMOVAL [12/2019 - 10/2022]  , or refer to  REMOVAL [10/2022 - 11/2023] 

Result: 

NG 

See step  3

1. Remove the ECU-B NO. 2 fuse from the instrument panel junction block assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	Instrument Panel Junction Block Assembly
   *2	ECU-B NO. 2 Fuse

2. Check if there is an open circuit in the ECU-B NO. 2 fuse in the instrument panel junction block assembly.

   OK

   There is no open circuit in the ECU-B NO. 2 fuse.

3. Install the ECU-B NO. 2 fuse.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE FUSE (ECU-B NO. 2) 

Result: 

OK 

See step  4

1. Remove the ECU-B NO. 2 fuse from the instrument panel junction block assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	Instrument Panel Junction Block Assembly
   *2	ECU-B NO. 2 Fuse Holder

2. Disconnect the cable from the negative (-) auxiliary battery terminal.
3. Disconnect the cable from the positive (+) auxiliary battery terminal.
4. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   1 (ECU-B NO. 2 fuse holder) - Auxiliary battery positive (+) cable	Ignition switch off	Below 1 Ω
   1 (ECU-B NO. 2 fuse holder) - Body ground	Ignition switch off	10 kΩ or higher

5. Connect the cable to the positive (+) auxiliary battery terminal.
6. Connect the cable to the negative (-) auxiliary battery terminal.
7. Install the ECU-B NO. 2 fuse.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  5

1. Remove the ECU-B NO. 2 fuse from the instrument panel junction block assembly.
2. Disconnect the H67 hybrid vehicle control ECU connector.
3. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	Instrument Panel Junction Block Assembly	*2	ECU-B NO. 2 Fuse Holder
   *a	Front view of wire harness connector (to Hybrid Vehicle Control ECU)	-	-

   Standard Resistance (Check for Open)

   Tester Connection	Condition	Specified Condition
   2 (ECU-B NO. 2 fuse holder) - H67-27 (BATT)	Ignition switch off	Below 1 Ω

   Standard Resistance (Check for Short)

   Tester Connection	Condition	Specified Condition
   2 (ECU-B NO. 2 fuse holder) or H67-27 (BATT) - Body ground and other terminals	Ignition switch off	10 kΩ or higher

4. Reconnect the H67 hybrid vehicle control ECU connector.
5. Reinstall the ECU-B NO. 2 fuse.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE HYBRID VEHICLE CONTROL ECU. Refer to  REMOVAL [12/2019 - 10/2022]  , or refer to  REMOVAL [10/2022 - 11/2023] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR