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 (STEERING LOCK ECU)

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





Standard voltage:





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

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

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

(a) Disconnect the J29 connector from the steering lock actuator assembly.





(b) 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 HARNESS AND CONNECTOR (STEERING LOCK ACTUATOR ASSEMBLY - POWER SOURCE CONTROL ECU)

(a) Disconnect the J55 connector from the power source control ECU.





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

Standard resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE POWER SOURCE CONTROL ECU