DTC P0AE7-224: Hybrid Battery Precharge Contactor Control Circuit High: Procedure

1. Turn the power switch off and remove the service plug grip. Refer to PRECAUTION .
   NOTE:

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

2. Disconnect the battery pack wire connector. Refer to REMOVAL .
   Fig 1: Identifying On1 Battery Pack Wire Connector Location

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Turn the power switch on (IG).
4. Measure the voltage according to the value(s) in the table below.
   Fig 2: Identifying ON1 Battery Pack Wire Connector Terminal Identification

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard voltage

   Tester Connection	Specified Condition
   SMRP (On1-8) - Body ground	Below 1 V

   NOTE:

   Turning the power switch on (IG) with the battery pack wire connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

NG → See step   4 

OK: Go to next step 

1. Check that the service plug grip is not installed.
   Fig 3: Identifying n4 Hybrid Vehicle Converter(DC/DC Converter) Connector Location

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the n4 hybrid vehicle converter (DC/DC converter) connector.
3. Turn the power switch on (IG).
4. Measure the voltage according to the value(s) in the table below.
   Fig 4: Identifying On1 Battery Pack Wire Connector Terminal Identification

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard voltage

   Tester Connection	Specified Condition
   SMRP (On1-8) - Body ground	Below 1 V

   NOTE:

   Turning the power switch on (IG) with the battery pack wire connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

5. Turn the power switch off.
6. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Specified Condition
   SMRP (On1-8) - Body ground	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Turn the power switch off.
2. Measure the resistance according to the value(s) in the table below.
   Fig 5: Identifying ON1 Battery Pack Wire Connector Terminal Identification

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard resistance

   Tester Connection	Specified Condition
   SMRP (On1-8) - Body ground	370 to 430 kΩ

NG → See step   5 

OK → See step   6 

1. Disconnect the A61 hybrid vehicle control ECU connector.
2. Turn the power switch on (IG).
3. Measure the voltage according to the value(s) in the table below.
   Fig 6: Identifying ON1 Battery Pack Wire Connector Terminal Identification

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard voltage

   Tester Connection	Specified Condition
   SMRP (On1-8) - Body ground	Below 1 V

   NOTE:

   Turning the power switch on (IG) with the battery pack wire connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   5