B2782

STEERING COLUMN: STEERING LOCK SYSTEM: B2782: Power Source Control ECU Malfunction
B2782 - Power Source Control ECU Malfunction

DESCRIPTION

The power source control ECU controls the power supply to activate the steering lock motor. This prevents the steering from being locked while the vehicle is moving.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT STEERING LOCK ACTUATOR ASSEMBLY

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





Voltage:





HINT
The steering lock ECU and steering lock actuator assembly are supplied as a unit.

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

2. CHECK HARNESS AND CONNECTOR (STEERING LOCK ACTUATOR ASSEMBLY - BODY GROUND)

(a) Disconnect the K28 connector from the steering lock actuator assembly.





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

Resistance:





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

3. CHECK HARNESS AND CONNECTOR (STEERING LOCK ACTUATOR ASSEMBLY - POWER SOURCE CONTROL ECU)

(a) Disconnect the K73 connector from the power source control ECU assembly.





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

Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE POWER SOURCE CONTROL ECU ASSEMBLY