Lexus ES: Main Body Ecu
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Installation
INSTALLATION CAUTION / NOTICE / HINT NOTICE:
Before replacing the main body ECU (multiplex network body ECU), refer to Registration.
SMART ACCESS SYSTEM WITH PUSH-BUTTON START(for Start Function, G
Removal
REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during mai
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 BRA
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Removal
REMOVAL
PROCEDURE
1. REMOVE COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY
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2. REMOVE FRONT CENTER UPPER SUSPENSION BRACE SUB-ASSEMBLY
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3. REMOVE UNION TO CHECK VALVE HOSE
(a) Disengage the clamp to separate the union to check valve hose from
the air tube.
Terminals Of Ecu
TERMINALS OF ECU CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY (a) Disconnect the J20 multiplex network master switch assembly connector. (b) Measure the voltage and resistance according to the value(s) in the table below. HINT: Measure the values on the wire harness side with the connector discon
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