B2285

2GR-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 power source control ECU and the steering lock ECU are connected by a cable and the LIN. These DTCs are output when: 1) the cable information and LIN information are inconsistent; and 2) a malfunction is detected between the power source control ECU and the steering lock ECU.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM (STEERING LOCK CONDITION)

(a) Check the DATA LIST for proper functioning of the steering lock condition.

Power source control ECU:





OK:

ON (steering is unlocked) appears on the screen.

NG -- CHECK WIRE HARNESS (POWER SOURCE CONTROL ECU - STEERING LOCK ECU)

OK -- REPLACE POWER SOURCE CONTROL ECU

2. CHECK WIRE HARNESS (POWER SOURCE CONTROL ECU - STEERING LOCK ECU)

(a) Disconnect the K73 ECU connector.





(b) Disconnect the K28 ECU connector.

(c) Measure the resistance of the wire harness side connectors.

Standard resistance:





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

3. CHECK AND REPLACE POWER SOURCE CONTROL ECU

(a) Temporarily replace the power source control 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

OK -- REPLACE POWER SOURCE CONTROL ECU