Lexus ES manuals

Lexus ES: System Diagram

SYSTEM DIAGRAM

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 Terminals Of Ecu

TERMINALS OF ECU CHECK 4WD ECU ASSEMBLY (a) Measure the voltage and resistance of the connector. Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition G

 Control Module Communication Bus Off (U0073,U0100,U0126,U0129)

DESCRIPTION The 4WD ECU assembly inputs the signals sent from the ECM, skid control ECU (brake actuator assembly) and steering sensor via CAN communication. When DTCs indicating a CAN communication sy

 Transfer Assembly

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 Inspection

INSPECTION PROCEDURE 1. INSPECT HEATED OXYGEN SENSOR (for Bank 1) (a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Specified Condition 1 (HT1B) - 2 (+B) 20°C (68°F) 5 to 10 Ω 1 (HT1B) - 4 (E2) Always

 Left Front Wheel Speed Sensor Signal Stuck High (C050024)

DESCRIPTION Refer to DTC C050012 Click here DTC No. Detection Item DTC Detection Condition Trouble Area C050024 Left Front Wheel Speed Sensor Signal Stuck High The speed sensor signal is not within the specified range for 5 seconds or more. Front speed sensor LH CAUTION / NOT

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