Lexus ES: Diagnosis System
Lexus ES (XZ10) Service Manual / Vehicle Interior / Window / Glass / Power Window Control System (for Gasoline Model) / Diagnosis System
DIAGNOSIS SYSTEM
DESCRIPTION
(a) Power window control system data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3). When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs.
CHECK DLC3
(a) Check the DLC3.
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INSPECT BATTERY VOLTAGE
(a) Measure the battery voltage.
Standard Voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery.
READ NEXT:
Dtc Check / Clear
DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / (desired system) /
Fail-safe Chart
FAIL-SAFE CHART PULSE FAILURE (a) If a pulse sensor built into the power window regulator motor assembly malfunctions, the following power window operations will be prohibited. Multiplex Network Maste
Data List / Active Test
DATA LIST / ACTIVE TEST DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. Th
SEE MORE:
Disassembly
DISASSEMBLY PROCEDURE 1. REMOVE KICK DOOR CONTROL SENSOR WITH BRACKET (w/ Hands Free Power Trunk Lid) Click here 2. REMOVE REAR CENTER ULTRASONIC SENSOR (w/ Parking Support Alert System) Click here HINT: Use the same procedure for the RH side and LH side. 3. REMOVE REAR CORNER ULTRASONIC SENS
System Diagram
SYSTEM DIAGRAM Communication Table Transmitting ECU Receiving ECU Signal Communication Method Certification ECU (smart key ECU assembly) Main body ECU (multiplex network body ECU) Luggage electrical key switch signal CAN Combination meter assembly Main body ECU (multiplex
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