ENTRY AND START SYSTEM(for Start Function), Diagnostic DTC:B2285

DESCRIPTION

This DTC is stored when the steering lock position signal sent by the steering lock ECU (steering lock actuator assembly) via direct line and the steering lock position signal sent via LIN communication do not match.

• *: Only detected while a malfunction is present and the engine switch is on (IG)

WIRING DIAGRAM

CAUTION / NOTICE / HINT

PROCEDURE

1. CHECK FOR DTC (LIN COMMUNICATION SYSTEM)

   
   

   1. Check for DTCs Click here.

      OK
      LIN communication system DTC B2785 is not output simultaneously.

      Tech Tips

      
      

      • If the steering wheel cannot be locked or unlocked, the engine switch cannot be turned on (IG) and the engine cannot be started.

      • If LIN communication is not available, the steering wheel cannot be locked or unlocked.

   
   

   NG

   GO TO DTC B2785 Click here

   OK

2. READ VALUE USING GTS (STEERING UNLOCK SWITCH)

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the engine switch on (IG).

   3. Turn the GTS on.

   4. Enter the following menus: Body Electrical / Power Source Control / Data List.

   5. According to the display on the GTS, read the Data List.

      Power Source Control

      Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
      Steering Unlock Switch	State of steering unlock sensor signal output from steering lock actuator assembly/ON or OFF	ON: Steering unlocked OFF: Steering locked	When the shift lever is in P (for Automatic Transmission) and the engine switch is off, if any door is opened then closed, the steering is locked. When the key is inside the vehicle and the engine switch is turned on (ACC) or on (IG), the steering unlocks. The engine cannot be started when the steering unlock signal is off.

      Result

      Result		Proceed to
      Data List item does not change		A
      Data List item changes	for Manual Tilt and Manual Telescopic Steering Column	B
      	for Power Tilt and Power Telescopic Steering Column	C

   
   

   B

   REPLACE STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY) Click here

   C

   REPLACE STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY) Click here

   A

3. CHECK HARNESS AND CONNECTOR (POWER SOURCE)

   
   

   1. Disconnect the E130 certification ECU (smart key ECU assembly) connector.

   2. 

      Text in Illustration

      *a	Front view of wire harness connector (to Certification ECU (smart key ECU assembly))

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

      Standard Voltage
      Tester Connection Condition Specified Condition E130-10 (+B) - Body ground Always 11 to 14 V

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR IN CIRCUIT CONNECTED TO POWER SOURCE

   OK

4. CHECK HARNESS AND CONNECTOR (GROUND)

   
   

   1. Disconnect the E130 certification ECU (smart key ECU assembly) connector.

   2. 

      Text in Illustration

      *a	Front view of wire harness connector (to Certification ECU (smart key ECU assembly))

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

      Standard Resistance
      Tester Connection Condition Specified Condition E130-11 (E) - Body ground Always Below 1 Ω

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

5. INSPECT STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY)

   
   

   1. Reconnect the E26 steering lock ECU (steering lock actuator assembly) connector.

   2. Reconnect the E130 certification ECU (smart key ECU assembly) connector.

   3. 

      Text in Illustration

      *a	Component with harness connected (Steering Lock ECU (Steering Lock Actuator Assembly))

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

      Standard Resistance
      Tester Connection Condition Specified Condition Positive (+) tester probe → E26-4 (SLP1) Negative (-) tester probe → Body ground Steering locked* 10 kΩ or higher Steering unlocked* Below 1 Ω

      Tech Tips

      
      

      • *: If any of the doors are opened then closed with the shift lever in P and the engine switch off, the steering wheel will be locked. If the engine switch is then turned on (ACC) or on (IG), the steering wheel will be unlocked.

      • DTC B2285 may be stored due to a malfunction in the steering lock ECU (steering lock actuator assembly). The steering lock position signal and unlock position signal are sent from the steering lock ECU (steering lock actuator assembly) to the certification ECU (smart key ECU assembly) individually.

      Result

      Result		Proceed to
      OK		A
      NG	for Manual Tilt and Manual Telescopic Steering Column	B
      	for Power Tilt and Power Telescopic Steering Column	C

   
   

   B

   REPLACE STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY) Click here

   C

   REPLACE STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY) Click here

   A

6. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY))

   
   

   1. Disconnect the E130 certification ECU (smart key ECU assembly) connector.

   2. Disconnect the E26 steering lock ECU (steering lock actuator assembly) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition E130-23 (SLP) - E26-4 (SLP1) Always Below 1 Ω E130-23 (SLP) or E26-4 (SLP1) - Body ground 10 kΩ or higher

   
   

   OK

   REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR