Lexus ES manuals

Lexus ES: Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART

Diagnostic Trouble Code Chart

DTC No.

Detection Item

Trouble Area

Link

B1003

ECU Malfunction

Central gateway ECU (network gateway ECU)

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 Data List / Active Test

DATA LIST / ACTIVE TEST NOTICE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faul

 Fail-safe Chart

FAIL-SAFE CHART FAIL-SAFE FUNCTION (a) When communication fails in any of the CAN bus lines (communication lines), a fail-safe function(s) will operate. The fail-safe function that is specified for ea

 Dtc Check / Clear

DTC CHECK / CLEAR CHECK FOR 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 / Central Gateway

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 Diagnosis System

DIAGNOSIS SYSTEM DESCRIPTION (a) Parking support brake system data and Diagnostic Trouble Codes (DTCs) can be read from the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the Techstream to check for malfunctions and to repair them. CHECK DLC3 (a) Check t

 Brake Switch "A" Circuit Open (P057113)

DESCRIPTION When the brakes are applied by the dynamic radar cruise control system, the skid control ECU (brake actuator assembly) operates the stop light switch assembly (stop light control relay) to illuminate the stop lights. If the ECM receives a signal from the skid control ECU (brake actuator

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