Lexus ES: System Diagram
Lexus ES (XZ10) Service Manual / Engine & Hybrid System / A25a-fks (engine Control) / Sfi System / System Diagram
SYSTEM DIAGRAM
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How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. CUSTOMER PROBLEM ANALYSIS
NEXT 3. CONNEC
Check For Intermittent Problems
CHECK FOR INTERMITTENT PROBLEMS HINT: Inspect the vehicle ECM using check mode. Intermittent problems are easier to detect with the Techstream when the ECM is in check mode. In check mode, the ECM use
Basic Inspection
CAUTION / NOTICE / HINT When a malfunction is not confirmed by the DTC check, troubleshooting should be carried out for all circuits considered to be possible causes of the problem. In many cases, by
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Components
COMPONENTS ILLUSTRATION *A for HV Model - - *1 HYBRID VEHICLE CONTROL ECU *2 INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY WITH MAIN BODY ECU *3 NO. 3 INSTRUMENT PANEL TO COWL BRACE SUB-ASSEMBLY - - N*m (kgf*cm, ft.*lbf): Specified torque - - ILLUSTRATION *
Check Bus 1 Line for Short to GND
DESCRIPTION There may be a short circuit between one of the CAN bus lines and GND when there is no resistance between terminal 23 (CA1H) of the central gateway ECU (network gateway ECU) and terminal 4 (CG) of the DLC3, or terminal 8 (CA1L) of the central gateway ECU (network gateway ECU) and termina
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