STEERING LOCK SYSTEM, Diagnostic DTC:B2782

Click here

DESCRIPTION

The steering lock ECU activates the steering lock motor by the power from the main body ECU* through the IGE circuit. This prevents the steering from being locked while the vehicle is moving.

The diagnosis information of the steering lock ECU is transmitted to the tester via the certification ECU (smart key ECU assembly) as the steering lock ECU is not connected to the CAN communication system.

Click here

INSPECTION PROCEDURE

• When the engine switch is off, the main body ECU may occasionally go into a non-active state called sleep mode. Therefore, before proceeding with the inspection, it is necessary to perform the following step to wake up the ECU:

  Before starting the inspection, with the engine switch off, open the driver door. Then (with the engine switch still off) open and close any door several times at 1.5-second intervals.

• After replacing the steering lock actuator assembly (steering lock ECU), confirm the lock/unlock operation of the steering lock (Click here).

Click here

PROCEDURE

1. Click here

   INSPECT STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU)

   
   
   1. 

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

      Standard Voltage

      Tester Connection Condition Specified Condition G22-3 (IGE) - G22-1 (GND) The specified condition should be checked after performing the following: Turn the engine switch off Turn the engine switch on (ACC or IG) Motor activated: Below 1 V Motor not activated: 11 to 14 V G22-3 (IGE) - G22-1 (GND) The specified condition should be checked after performing the following: Move the shift lever to P Turn the engine switch off Open the driver door Motor activated: Below 1 V Motor not activated: 11 to 14 V

      Tip:

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

   
   
   • OKClick here
   • NGClick here
2. Click here

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

   
   
   1. 

      Disconnect the G22 connector from the steering lock actuator assembly.

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

      Standard Resistance
      Tester Connection Condition Specified Condition G22-1 (GND) - Body ground Always Below 1 Ω

   
   
   • OKClick here
   • NGClick here
3. Click here

   CHECK HARNESS AND CONNECTOR (STEERING LOCK ACTUATOR ASSEMBLY - MAIN BODY ECU)

   
   
   1. 

      Disconnect the G48 connector from the main body ECU.

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

      Standard Resistance
      Tester Connection Condition Specified Condition G22-3 (IGE) - G48-19 (SLR+) Always Below 1 Ω G22-3 (IGE) - Body ground Always 10 kΩ or higher

   
   
   • OKClick here
   • NGClick here
4. Click here

   REPLACE MAIN BODY ECUClick here

5. Click here

   REPLACE STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU)Click here

6. Click here

   REPAIR OR REPLACE HARNESS OR CONNECTOR

7. Click here

   REPAIR OR REPLACE HARNESS OR CONNECTOR