DTC P2602-767: Oil Pump Control Circuit Low: Procedure

1. Disconnect connector A58 from the hybrid vehicle control ECU.
2. Disconnect connector from the oil pump with motor assembly.
3. Measure the resistance according to the value(s) in the table below.
   Fig 1: Identifying A58 From The Hybrid Vehicle Control ECU & A15 Oil Pump With Motor Assembly

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   A58-26 (OPST) or A15-2 (OPST) - Body ground	Power switch off	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *1	Front view of wire harness connector (to Hybrid Vehicle Control ECU)
   *2	Front view of wire harness connector (to Oil Pump with Motor Assembly)

4. Connect the oil pump with motor assembly connector.
5. Connect the hybrid vehicle control ECU connector.

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect connector from the oil pump with motor assembly.
2. Measure the resistance according to the value(s) in the table below.
   Fig 2: Identifying A15 Oil Pump With Motor Assembly

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   A15-2 (OPST) - A15-1 (OPG)	Power switch off	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *1	Component without harness connected (Oil Pump with Motor Assembly)

3. Connect the oil pump with motor assembly connector.

NG → See step   3 

OK → See step   4