B2288

1UR-FSE STARTING: SMART ACCESS SYSTEM WITH PUSH-BUTTON START: B2285,B2288: Steering Lock Position Signal Circuit Malfunction

B2285 - Steering Lock Position Signal Circuit Malfunction
B2288 - Steering Lock Signal Circuit Malfunction

DESCRIPTION

The main body ECU and the steering lock ECU are connected by a cable and the LIN communication line. These DTCs are output when: 1) signals, transmitted through the cable and the communication line, do not match; or 2) a malfunction is detected in the circuit between the main body ECU and the steering lock ECU.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM (STEERING LOCK CONDITION)

(a) Use the Data List to check if the steering lock condition is functioning properly.

Main Body





OK:

ON appears on the screen.

NG -- REPLACE MAIN BODY ECU
OK -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - STEERING LOCK ECU)





(a) Disconnect the L13 main body ECU connector.

(b) Disconnect the L33 steering lock ECU connector.

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

Standard resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

3. CHECK MAIN BODY ECU (OPERATION)

(a) Temporarily replace the main body ECU with a new or normally functioning one.

(b) Check that the engine starts normally.

OK:

Engine starts normally.

NG -- GO TO STEERING LOCK SYSTEM How To Proceed With Troubleshooting

OK -- END (MAIN BODY ECU IS FAULTY)