DTC P0A10-592: DC / DC Converter Status Circuit High Input: Procedure

NG → See step   5 

OK: Go to next step 

NEXT: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
4. Check if DTC is output.

   Result

   Result	Proceed to
   DTC P0A10-592 is not output.	A
   DTC P0A10-592 is output again.	B

5. Turn the power switch off.

B → See step   10 

A: Go to next step 

1. Check for intermittent problems. Refer toCHECK FOR INTERMITTENT PROBLEMS .

NG → REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA 

OK → See step   10 

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

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

2. Disconnect connector A58 from the hybrid vehicle control ECU.
3. Disconnect connector z17 from the hybrid vehicle converter.
   Fig 1: Identifying z17 Hybrid Vehicle Converter Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Turn the power switch on (IG).
5. Measure the voltage according to the value(s) in the table below.
   Fig 2: Identifying A58 Hybrid Vehicle Control ECU & Z17 Hybrid Vehicle Converter Connectors

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   A58-62 (VLO) or z17-3 (VLO) - Body ground	Power switch on (IG)	Below 1 V

   TEXT IN ILLUSTRATION
   
   

   *1	Front view of wire harness connector (to Hybrid Vehicle Control ECU)
   *2	Rear view of wire harness connector (to Hybrid Vehicle Converter)

   NOTE:

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

6. Turn the power switch off.
7. Connect the hybrid vehicle converter connector.
8. Connect the hybrid vehicle control ECU connector.

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Replace the hybrid vehicle control ECU. Refer toCOMPONENTS .

NEXT: Go to next step 

NEXT: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
4. Check if DTC is output.

   Result

   Result	Proceed to
   DTC P0A10-592 is not output.	A
   DTC P0A10-592 is output again.	B

5. Turn the power switch off.

B → See step   9 

A → COMPLETED