DTC B2275-11: Starter Circuit Short to Ground; DTC B2275-12: Starter Circuit Short to Battery [09/2023 - ]: Procedure

Pre-procedure1

• Turn the ignition switch to ON and wait 25 seconds.

• Using the GTS, check for certification ECU (smart key ECU assembly) DTCs.

  Body Electrical > Power Source Control > Trouble Codes 

  OK

  DTC B2285-62 is not output simultaneously.

  Result

  Result	Proceed to
  B2285-62 is not output	A
  B2285-62 is output	B

Post-procedure1

• None

Result: 

B 

GO TO DTC B2285-62. Refer to  DTC B2285-62: Steering Lock Position Signal Compare Failure [09/2023 - ]  

Result: 

A 

See step  2

Pre-procedure1

• Disconnect the B7 certification ECU (smart key ECU assembly) connector.
• Disconnect the D44 hybrid vehicle control ECU assembly connector.

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

  Standard Resistance

  Tester Connection	Condition	Specified Condition	Result
  B7-2 (ST2) - D44-11 (ST2)	Always	Below 1 Ω	Ω
  B7-2 (ST2) or D44-11 (ST2) - Other terminals and body ground	Always	10 kΩ or higher	kΩ

  Result

  Proceed to
  OK
  NG

Post-procedure1

• Connect the B7 certification ECU (smart key ECU assembly) connector.
• Connect the D44 hybrid vehicle control ECU assembly connector.

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  3

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component with harness connected (Certification ECU (Smart Key ECU Assembly))

   Standard Voltage

   Tester Connection	Condition	Specified Condition	Result
   B7-2 (ST2) - Body ground	With the brake pedal depressed, the power switch is pressed and held	8.5 V or higher	V
   B7-2 (ST2) - Body ground	After approx. 3 sec. has elapsed, the power switch is released	1 V or less	V

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY. Refer to  REMOVAL [09/2023 - 12/2023]  , or refer to  REMOVAL [12/2023 - ] 

Result: 

NG 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [09/2023 - 12/2023]  , or refer to  REMOVAL [12/2023 - ]