DTC P0A10-263: DC / DC Converter Status Circuit High Input [12/2014 - ]: Procedure

NG → See step   4 

OK: Go to next step 

NEXT: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON (READY).
3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
4. Check if DTCs are output.

   Result

   Result	Proceed to
   P0A10-263 is not output.	A
   P0A10-263 is output again.	B

5. Turn the ignition switch off.

B → See step   7 

A → See step   8 

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

   After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the appropriate service information because this may cause a malfunction.

2. Disconnect connector A47 from the inverter with converter assembly.
3. Connect the cable to the negative (-) auxiliary battery terminal.
4. Turn the ignition switch to ON (IG).
5. Measure the voltage according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   A47-12 (NODD) - Body ground	Ignition switch ON (IG)	Below 1 V

   TEXT IN ILLUSTRATION
   
   

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

   NOTE:

   Turning the ignition switch to ON (IG) with the inverter with converter assembly connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

6. Turn the ignition switch off.
7. Disconnect the cable from the negative (-) auxiliary battery terminal.
8. Connect the inverter with converter assembly connector.

NG → See step   5 

OK → See step   6 

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

   After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the appropriate service information because this may cause a malfunction.

2. Disconnect connector A47 from the inverter with converter assembly.
3. Disconnect connector A38 from the hybrid vehicle control ECU.
4. Connect the cable to the negative (-) auxiliary battery terminal.
5. Turn the ignition switch to ON (IG).
6. Measure the voltage according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   A47-12 (NODD) or A38-25 (NODD) - Body ground	Ignition switch ON (IG)	Below 1 V

   TEXT IN ILLUSTRATION
   
   

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

   NOTE:

   Turning the ignition switch to ON (IG) with the inverter with converter assembly connector and the hybrid vehicle control ECU connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

7. Turn the ignition switch off.
8. Disconnect the cable from the negative (-) auxiliary battery terminal.
9. Connect the inverter with converter assembly connector.
10. Connect the hybrid vehicle control ECU connector.

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   7