LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2006 >> GS 430 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (3UZ-FE) >> SFI System >> DTC U0001 High Speed CAN Communication Bus >> Typical Malfunction Thresholds
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Typical Malfunction Thresholds

TYPICAL MALFUNCTION THRESHOLDS

Communication between ECM and TCM No communication
  1. CHECK OTHER DTC OUTPUT (IN ADDITION TO DTC U0001) 

    Result 

    DIAGNOSTIC TROUBLE CODE CHART

    Display (DTC output) Proceed to
    U0001 A
    U0001 and other DTCs B

    B : GO TO  RELEVANT DTC CHART  

    A : REPLACE ECM 

scientia non olet · About LEMON Manuals