Up to 08/2009

THEFT DETERRENT / KEYLESS ENTRY: SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function): B2285: Steering Lock Position Signal Circuit Malfunction
B2285 - Steering Lock Position Signal Circuit Malfunction

DESCRIPTION

This DTC is stored when serial communication signals and LIN communication signals in the circuit between the power management control ECU and steering lock actuator assembly (steering lock ECU) are inconsistent.





WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
* When the power management control ECU is replaced with a new one and the cable from the negative (-) battery terminal is connected, the power source mode becomes the on (IG) mode. When the battery is removed and reinstalled, the power source mode that was selected when the battery was removed is restored.
* Inspect the fuses for circuits related to this system before performing the following inspection procedure.
HINT
Check the connector connection to the terminal to make sure that there is no abnormality such as a loose connection, deformation, etc.

PROCEDURE

1. CHECK LIN COMMUNICATION SYSTEM

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.

(e) Check if DTC B2287 is output.

OK:

DTC B2287 is not output.

NG -- GO TO LIN COMMUNICATION SYSTEM LIN Communication System
OK -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (BATTERY - POWER MANAGEMENT CONTROL ECU) B2271

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - POWER MANAGEMENT CONTROL ECU)
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND) B2271

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER MANAGEMENT CONTROL ECU - NO. 1 JUNCTION)
OK -- Continue to next step.

4. INSPECT STEERING LOCK ACTUATOR ASSEMBLY

(a) Reconnect the F8 connector to the power management control ECU.





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

Standard Resistance:





Text in Illustration





NG -- REPLACE STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU)
OK -- Continue to next step.

5. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - STEERING LOCK ECU)

(a) Disconnect the F8 connector from the power management control ECU.





(b) Disconnect the F37 connector from the steering lock actuator assembly (steering lock ECU).

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

Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER MANAGEMENT CONTROL ECU - STEERING LOCK ECU)
OK -- Continue to next step.

6. READ VALUE USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Power Source Control / Data List.

(e) Read the Data List according to the display on the Techstream.

Power Source Control





OK:

ON (steering lock is unlocked) and OFF (steering lock is locked) appear on the screen.

NG -- REPLACE POWER MANAGEMENT CONTROL ECU Removal

OK -- REPLACE STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU)