Lexus ES manuals

Lexus ES: Diagnosis System

DIAGNOSIS SYSTEM

DESCRIPTION

(a) Sliding roof 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 AUXILIARY BATTERY VOLTAGE

(a) Measure the auxiliary battery voltage with the power switch off.

Standard Voltage:

11 to 14 V

  • If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding to the next step.

READ NEXT:

 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 / Sliding Roof / Troub

 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

 Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART Sliding Roof System DTC No. Detection Item Link B2341 Sensor (Motor) Failure B2342 Switch Failure B2343 Position Initialization Incompl

SEE MORE:

 IG Power Supply Voltage (C1551)

DESCRIPTION When a malfunction is detected in the power source circuit, the fail-safe function suspends power assist. DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Return-to-normal Condition Note C1551 IG Power Supply Voltage When the PIG power s

 Freeze Frame Data

FREEZE FRAME DATA FREEZE FRAME DATA (a) When a DTC is stored, the 4WD ECU assembly stores the current vehicle state as Freeze Frame Data. HINT: Freeze Frame Data at the time a DTC is stored: When the 4WD ECU assembly stores data at the time a DTC is stored, no updates will be performed until the

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