DTC B2288: Steering Lock Signal Circuit Malfunction: Procedure

1. Delete the DTCs, refer to DTC CHECK / CLEAR .
2. After all DTCs are cleared, check if the trouble occurs again 18 to 22 seconds after the engine switch is turned on (IG).
3. Check for DTCs again.

   Result

   Result	Proceed to
   DTC B2285 (Steering lock Position Signal Circuit Malfunction) is output	A
   Steering lock DTCs B2781, B2782 and / or B2788 are output	B
   DTC is not output	C

A → See step   4 

B → See step   5 

C: Go to next step 

1. Check if the steering lock is released when turning the engine switch on (ACC).

   OK

   The steering lock is released.

NG → See step   7 

OK: Go to next step 

1. Connect Techstream to the DLC3.
2. Check the DATA LIST for proper functioning of the steering lock function.

   HINT: 

   When using Techstream with the engine switch off, turn on and off any of the door courtesy light switches repeatedly at 1.5 second intervals or less until communication between the tester and vehicle starts.

   MAIN BODY
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Str Unlock SW	Steering lock condition / ON or OFF	ON: Steering is unlocked (Engine switch on (ACC) OFF: Steering is locked (Engine switch off)	-

NG → See step   6 

OK → REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)