LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2006 >> Sienna CE >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Cruise Control System >> Dynamic Laser Cruise Control System >> DTC U0122 Lost Communication with Vehicle Dynamics Control Module >> Inspection Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Inspection Procedure

  1. CHECK 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 HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS ).

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: GO TO NEXT STEP 

  2. REPLACE BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU) 

    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 assembly.

    NEXT: REPLACE ECM