P0A09-265

P313 HYBRID VEHICLE CONTROL: HYBRID CONTROL SYSTEM: P0A09-265: DC / DC Converter Status Circuit Low Input
P0A09-265 - DC / DC Converter Status Circuit Low Input

DESCRIPTION

Refer to the description for DTC P0A08-264 P0A08.





WIRING DIAGRAM

Refer to the wiring diagram for DTC P0A08-264 P0A08.

INSPECTION PROCEDURE

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

PROCEDURE

1. CHECK CONNECTOR CONNECTION CONDITION (INVERTER WITH CONVERTER ASSEMBLY CONNECTOR) P0343-747

NG -- CONNECT SECURELY
OK -- Continue to next step.

2. CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU CONNECTOR) P0340-886

NG -- CONNECT SECURELY
OK -- Continue to next step.

3. CHECK HYBRID VEHICLE CONTROL ECU

CAUTION:
Be sure to wear insulated gloves.

(a) Check that the service plug grip is not installed.

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

(b) Turn the ignition switch off.

(c) Disconnect the A64 connector from the inverter with converter assembly.

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





Standard Resistance:





Text in Illustration





(e) Connect the inverter with converter assembly connector.

NG -- CHECK HARNESS AND CONNECTOR (INVERTER WITH CONVERTER - HYBRID VEHICLE CONTROL ECU)

OK -- REPLACE INVERTER WITH CONVERTER ASSEMBLY Removal

4. CHECK HARNESS AND CONNECTOR (INVERTER WITH CONVERTER - HYBRID VEHICLE CONTROL ECU)

CAUTION:
Be sure to wear insulated gloves.

(a) Check that the service plug grip is not installed.

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

(b) Disconnect the A64 connector from the inverter with converter assembly.

(c) Disconnect the A65 connector from the hybrid vehicle control ECU.

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





Standard Resistance:





Text in Illustration





(e) Connect the inverter with converter assembly connector.

(f) Connect the hybrid vehicle control ECU connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE HYBRID VEHICLE CONTROL ECU Removal