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Home >> Lexus >> 2005 >> ES 330 >> Repair and Diagnosis >> External Pages >> Different car >> Section 145 (Dynamic Laser Cruise - Diagnostics) >> Dynamic Laser Cruise Control System >> DTC U0122/64: Lost Communication With Vehicle Dynamics Control Module >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2005 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK WIRE HARNESS AND CONNECTOR (ECM - SKID CONTROL ECU) 
    1. Check for an open or short circuit in harness and connector between the ECM and the skid control ECU (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE ).
    1. NG: REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR 
    2. OK: Go to next step 
  2. REPLACE BRAKE ACTUATOR ASSY (SKID CONTROL ECU) (See  REPLACEMENT  ) 

    HINT:

    • If the problem still occurs after the replacement, replace the ECM.
    • When a malfunction is found in the skid control ECU, replace the brake actuator assy.
    1. REPLACE ECM (See  REPLACEMENT  )