Lexus ES manuals

Lexus ES: Terminals Of Ecu

TERMINALS OF ECU

CHECK SWING GRILLE ACTUATOR ASSEMBLY

(a) Disconnect the z23 swing grille actuator 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 disconnected.

Tester Connection

Wiring Color

Terminal Description

Condition

Specified Condition

z23-1 (+B) - Body ground

-

Auxiliary battery power supply

Power switch off

11 to 14 V

z23-3 (GND) - Body ground

-

Ground

Always

Below 1 Ω

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 Diagnosis System

DIAGNOSIS SYSTEM DESCRIPTION (a) Grille shutter system data and Diagnostic Trouble Codes (DTCs) can be read through the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunc

 Dtc Check / Clear

DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / (desired system) / T

 Data List / Active Test

DATA LIST / ACTIVE TEST 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. This non-int

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 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 rear door opening trim weatherstrip removal/installation are shown below. Necessary Procedure After Part

 Problem Symptoms Table

PROBLEM SYMPTOMS TABLE NOTICE: If the auxiliary battery voltage becomes low, auxiliary battery load control will operate in order to ensure sufficient power is supplied to the power steering system. In this case, the windshield deicer system may not operate. HINT: Use the table below to hel

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