DTC B2285: Steering Lock Position Signal Circuit Malfunction [08/2015 - 08/2019]: Procedure

1. Clear the DTCs (Refer to DTC CHECK / CLEAR [08/2015 - 08/2019] ).
2. Check for DTCs (Refer to DTC CHECK / CLEAR [08/2015 - 08/2019] ).

   OK

   LIN communication system DTCs B2287 and B2785 are not output simultaneously.

Result: 

NG 

GO TO DTC B2287 

(Refer to DTC B2287: LIN Communication Master Malfunction; DTC B278C: Lost Communication with Power Source Control [08/2015 - 08/2019] )

Result: 

OK 

See step  2

See step  1

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  3

See step  2

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  4

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F68-4 (SLP1) - Body ground	Steering lock locked	10 kΩ or higher
   F68-4 (SLP1) - Body ground	Steering lock released	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Component with harness connected (Steering Lock ECU)

Result: 

NG 

REPLACE STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU) 

(Refer to REMOVAL [08/2015 - 08/2022] )

Result: 

OK 

See step  5

1. Disconnect the F80 power management control ECU connector.
2. Disconnect the F68 steering lock ECU connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F80-3 (SLP) - F68-4 (SLP1)	Always	Below 1 Ω
   F80-3 (SLP) or F68-4 (SLP1) - Body ground	Always	10 kΩ or higher

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  6

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Power Source Control / Data List.
5. According to the display on the Techstream, read the Data List.
   POWER SOURCE CONTROL
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Steering Unlock Switch	Steering lock condition / ON or OFF	ON: Steering lock released (Engine switch on [ACC]) OFF: Steering lock locked (Engine switch off)	-

   OK

   ON (steering lock released) or OFF (steering lock locked) appears on the screen according to the steering lock condition.

Result: 

OK 

REPLACE STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU) 

(Refer to REMOVAL [08/2015 - 08/2022] )

Result: 

NG 

REPLACE POWER MANAGEMENT CONTROL ECU 

(Refer to REMOVAL [08/2015 - 08/2019] )