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

1. Turn the power switch off.
2. Disconnect the battery pack wire connector. Refer to REMOVAL .
   Fig 1: Locating Battery Pack Wire Connector

   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 zR2 Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT: 

   Turning the power switch on (IG) with the service plug grip removed causes an interlock switch system DTC (P0A0D-350) to be set.

   Standard voltage

   Tester Connection	Switch Condition	Specified Condition
   zR2-8 (SMRP) - Body ground	Power switch on (IG)	Below 1 V

NG → See step   3 

OK: Go to next step 

1. Turn the power switch off.
2. 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.

3. Disconnect the low voltage connector from the hybrid vehicle converter.

   HINT: 

   Fig 3: Locating Low Voltage Connector Of Hybrid Vehicle Converter

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   For the removal and installation procedures related to the low voltage connector of the hybrid vehicle converter. Refer toREMOVAL .

4. Connect the 2 floor wires to the luggage room junction block assembly.
   Fig 4: Locating Floor Wires

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Insulate the AMD terminal of the removed wire with insulating tape to prevent a short to body ground.
6. Turn the power switch on (IG).
7. Measure the voltage according to the value(s) in the table below.
   Fig 5: Identifying zR2 Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT: 

   Turning the power switch on (IG) with the service plug grip removed causes an interlock switch system DTC (P0A0D-350) to be set.

   Standard voltage

   Tester Connection	Switch Condition	Specified Condition
   zR2-8 (SMRP) - Body ground	Power switch on (IG)	Below 1 V

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

   Standard resistance

   Tester Connection	Switch Condition	Specified Condition
   zR2-8 (SMRP) - Other terminals	Power switch off	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   4 

1. Turn the power switch off.
2. Disconnect connector A74 from the hybrid vehicle control ECU.
   Fig 6: Identifying Hybrid Vehicle Control ECU Connectors

   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 7: Identifying zR2 Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT: 

   Turning the power switch on (IG) with the service plug grip removed causes an interlock switch system DTC (P0A0D-350) to be set.

   Standard voltage

   Tester Connection	Switch Condition	Specified Condition
   zR2-8 (SMRP) - Body ground	Power switch on (IG)	Below 1 V

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   5