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 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

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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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 Drive Motor "A" Temperature Sensor Voltage Out of Range (P0A2A1C,P0A2A1F)

DTC SUMMARY MALFUNCTION DESCRIPTION These DTCs are stored when the motor temperature sensor output is abnormal. The cause of this malfunction may be one of the following: Motor temperature sensor malfunction Internal motor temperature sensor malfunction Open or short in motor temperature sensor

 Actuator Malfunction (C13A7)

DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note C13A7 Actuator Malfunction Both of following conditions are met: Electric parking brake is operating One of following is detected: Motor lock, gear lock, motor spinning or repeated slipping

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