Lexus ES: How To Troubleshoot Ecu Controlled Systems
Lexus ES (XZ10) Service Manual / General / Introduction / How To Troubleshoot Ecu Controlled Systems
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General Information
GENERAL INFORMATION
A large number of ECU controlled systems are used in this vehicle. In
general, ECU controlled systems are considered to be very intricate, requiring
a high level of
Electronic Circuit Inspection Procedure
ELECTRONIC CIRCUIT INSPECTION PROCEDURE
BASIC INSPECTION
(a) WHEN MEASURING RESISTANCE OF ELECTRONIC PARTS
(1) Unless otherwise stated, all resistance measurements are standard values
measured at
How To Proceed With Troubleshooting
HOW TO PROCEED WITH TROUBLESHOOTING
OPERATION FLOW
HINT:
Perform troubleshooting in accordance with the procedure below. The following
is an outline of basic troubleshooting procedure. Confirm th
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Precaution
PRECAUTION PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL NOTICE: When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the cable is reconnected. System Name See Procedure Lane Control System (for Gasoline Model)
Parts Location
PARTS LOCATION ILLUSTRATION *1 SPIRAL CABLE SUB-ASSEMBLY *2 STEERING WHEEL HEATER SWITCH (REFRESHING SEAT SWITCH) *3 INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - ECU-IG1 NO. 3 FUSE *4 AIR CONDITIONING CONTROL ASSEMBLY *5 AIR CONDITIONING AMPLIFIER ASSEMBLY *6 RADIO RECEIV
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