DTC P0606-29: Backup Boost Converter "A" Control CPU Signal Invalid [10/2023 - ]: Procedure

Pre-procedure1

• Disconnect the engine stop and start ECU connector.

• Measure the voltage according to the value(s) in the table below.

  Standard Voltage

  Tester Connection	Condition	Specified Condition
  B37-1 (BIN2) - Body ground	Always	9.5 to 14 V
  B37-3 (BIN1) - Body ground	Always	9.5 to 14 V

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  2

Pre-procedure1

• Disconnect the engine stop and start ECU connector.

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

  Standard Resistance

  Tester Connection	Condition	Specified Condition
  B37-2 (GND2) - Body ground	Always	Below 1 Ω
  B37-8 (GND1) - Body ground	Always	Below 1 Ω

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

OK 

REPLACE ENGINE STOP AND START ECU. Refer to  REMOVAL [12/2021 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR