LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2006 >> LS 430 >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Dynamic Radar Cruise Control System - Diagnostics >> DTC P1630: Communication Error From VSC To ECM, DTC U0122 Lost Communication With Vehicle Dynamic Control Module >> Circuit Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit Description

The skid control ECU sends signals such as cruise control cancel demand signal, brake operation demand response signal from the ECM, etc. to the ECM when the dynamic radar cruise control system is in operation.

Fig 1: DTC P1630 And U0122 Problem Symptom Diagnostic Chart
G03003812Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.