P0560-117

DESCRIPTION

1. Battery power is constantly supplied to the BATT terminal of the HV control ECU for DTCs and freeze frame data memory even though the ignition switch is turned off.
   

DTC No.	INF Code	DTC Detection Condition	Trouble Area
P0560	117	HV control ECU back-up power source circuit malfunction	Wire harness or connector HV control ECU

MONITOR DESCRIPTION

If 3 or more seconds have elapsed with a voltage of less than 2.5 V at the BATT terminal in the HV control ECU, the HV control ECU will determine that a malfunction has occurred in the back-up power supply system, and set a DTC. The MIL will illuminate the next time the engine is started.

WIRING DIAGRAM

INSPECTION PROCEDURE

1. CHECK CONNECTION CONDITION OF HYBRID VEHICLE CONTROL ECU CONNECTOR (LOOSENESS AND POOR CONTACT)

1. Check the connections of all HV control ECU connectors.

   OK:

   Connectors are connected securely and there is no poor connection.
   

NG	CONNECT SECURELY

OK

2. CHECK HARNESS AND CONNECTOR (HV CONTROL ECU - IGCT NO.5 FUSE)

1. Turn the ignition switch OFF.

2. Remove the IGCT No.5 fuse from the engine room R/B No.4.

3. Disconnect the H29 connector from the HV control ECU.

4. Measure the resistance according to the value(s) in the table below.

   Standard Resistance (Check for open):

   Tester Connection	Specified Condition
   BATT (H29-1) - Engine room R/B No.4 IGCT No.5 fuse terminal 2	Below 1 Ω

   Standard Resistance (Check for short):

   Tester Connection	Specified Condition
   BATT (H29-1) or Engine room R/B No.4 IGCT No.5 fuse terminal 2 - Body ground	10 kΩ or more

   NOTICE:

   When taking a measurement with a tester, do not apply excessive force to the tester probe to avoid damaging the holder.

NG	REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

3. CHECK HARNESS AND CONNECTOR (IGCT NO.5 FUSE - BATTEY POSITIVE TERMINAL)

1. Disconnect the positive and negative cables from the auxiliary battery.

2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance (Check for open):

   Tester Connection	Specified Condition
   Engine room R/B No.4 IGCT No.5 fuse terminal 1 - Battery positive terminal	Below 1 Ω

   Standard Resistance (Check for short):

   Tester Connection	Specified Condition
   Engine room R/B No.4 IGCT No.5 fuse terminal 1 - Body ground	10 kΩ or more

   NOTICE:

   When taking a measurement with a tester, do not apply excessive force to the tester probe to avoid damaging the holder.

NG	REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

4. RECONFIRM OUTPUT DTC (HV)

HINT:

If DTC P0560-117 is output again after performing the inspection, replace the HV control ECU. If the DTC is not output, there may be a malfunction in the wire harness or connector. Perform a check for intermittent problems.

1. Connect the intelligent tester to the DLC3.

2. Turn the ignition switch to the ON position.

3. Select the following menu items: Powertrain / Hybrid Control / DTC.

4. Read output DTC. (Click here)

   Result:

   DTC P0560-117 is output again.
   

NO	CHECK FOR INTERMITTENT PROBLEMS

YES
REPLACE HYBRID VEHICLE CONTROL ECU