DTC    P0A09-265    DC / DC Converter Status Circuit Low Input

for Preparation Click here

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CAUTION:

1. Before inspecting the high-voltage system or disconnecting the low voltage connector of the inverter with converter assembly, take safety precautions such as wearing insulated gloves and removing the service plug grip to prevent electrical shocks. After removing the service plug grip, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.
   
2. After removing the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals. After waiting for 10 minutes, check the voltage at the terminals in the inspection point in the inverter with converter assembly. The voltage should be 0 V before beginning work (Click here).
   

   HINT:

   Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.

NOTICE:

After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work (Click here).

1. Check the connections of the power management control ECU connectors.
   

   
   
   
   
   

   Text in Illustration 

   *A

   for LHD

   *B

   for RHD

   OK:

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

NG	CONNECT SECURELY

OK

CAUTION:

Be sure to wear insulated gloves.

1. Check that the service plug grip is not installed.
   

   NOTICE:

   After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

NOTICE:

Before disconnecting the connector, confirm that it is properly connected by checking that the locking claws are engaged and that the connector does not pull out.

2. Check the connection of the low voltage connector of the inverter with converter assembly.
   

   OK:

   The connector is connected securely and there are no contact problems.
   

   HINT:

   When connecting the connector, insert it with the locking lever in the raised position. Rotate the lever downward and make sure that the connector is pulled into its socket. When the locking lever is in its fully closed position, a click will be heard as its locking claws engage. After the click is heard, pull up on the connector to confirm that it is properly connected.

NG	CONNECT SECURELY

OK

1. Turn the power switch on (READY).
   

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

   Standard Voltage:

   Tester Connection	Switch Condition	Specified Condition
   A19-21 (NODD) - H3-6 (E1)	Power switch on (READY)	5 to 7 V

   Text in Illustration  

   *a	Component with harness connected (Power Management Control ECU)

3. Turn the power switch off.
   

NG	Go to step 7

OK

1. Connect the intelligent tester to the DLC3.
   

2. Turn the power switch on (IG).
   

3. Enter the following menus: Powertrain / Hybrid Control / DTC.
   

4. Clear DTCs and freeze frame data.
   

NEXT

1. Turn the power switch on (READY).
   

2. Enter the following menus: Powertrain / Hybrid Control / DTC.
   

3. Check if DTCs are output.
   

   Result:

   Result	Proceed to
   DTC P0A09-265 is not output.	A
   DTC P0A09-265 is output again.	B

4. Turn the power switch off.
   

B	REPLACE POWER MANAGEMENT CONTROL ECU (Click here)

A

1. Check for intermittent problems (Click here).
   

NG	REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA

OK
REPLACE POWER MANAGEMENT CONTROL ECU (Click here)

CAUTION:

Be sure to wear insulated gloves.

1. Check that the service plug grip is not installed.
   

   NOTICE:

   After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

2. Disconnect connector A62 from the inverter with converter assembly.
   

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

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   A62-12 (NODD) - Body ground	Power switch off	120 to 140 kΩ

   Text in Illustration 

   *a	Front view of wire harness connector (to Inverter with Converter Assembly)

4. Connect the inverter with converter assembly connector.
   

NG	Go to step 8

OK
REPLACE INVERTER WITH CONVERTER ASSEMBLY (Click here)

CAUTION:

Be sure to wear insulated gloves.

1. Check that the service plug grip is not installed.
   

   NOTICE:

   After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

2. Disconnect connector A62 from the inverter with converter assembly.
   

3. Disconnect connector A19 from the power management control ECU.
   

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

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   A62-12 (NODD) - A19-21 (NODD)	Power switch off	Below 1 Ω
   A62-12 (NODD) or A19-21 (NODD) - Body ground and other terminals	Power switch off	10 kΩ or higher

   Text in Illustration  

   *a	Front view of wire harness connector (to Inverter with Converter Assembly)
   *b	Rear view of wire harness connector (to Power Management Control ECU)

5. Connect the inverter with converter assembly connector.
   

6. Connect the power management control ECU connector.
   

NG	REPAIR OR REPLACE HARNESS OR CONNECTOR

OK
REPLACE POWER MANAGEMENT CONTROL ECU (Click here)