Lexus ES manuals

Lexus ES: Diagnosis System



(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.


(a) Check the DLC3.

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(a) When the parking support brake system is unavailable either temporarily or due to a malfunction, a warning message is displayed on the multi-information display.

Multi-information Display Warning Message

Warning Message

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"Parking Support Brake Malfunction Visit Your Dealer"

"Parking Support Brake Unavailable"

"Parking Support Brake Unavailable Remove the Dirt of Rear Camera" (w/ Panoramic View Monitor System)


 Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART Parking Support Brake System DTC No. Detection Item Link C1625 Open or Short in Steering Angle Sensor +B C1626 Steering Angle Sensor Failure

 Dtc Check / Clear

DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the parking support brake system on. (d) Turn the Techstream on. (e) Enter the followin

 Fail-safe Chart

FAIL-SAFE CHART FAIL-SAFE FUNCTION (a) If a malfunction is detected in the parking support brake system, the warning message "Parking Support Brake Malfunction Visit Your Dealer", "Parking Support Bra



REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed, installed, or replaced during brake booster with master cylinder assembly removal/installation are shown below. Necessary Procedures Aft

 Readiness Monitor Drive Pattern

READINESS MONITOR DRIVE PATTERN PURPOSE OF READINESS TESTS The On-Board Diagnostic (OBD II) system is designed to monitor the performance of emission related components, and indicate any detected abnormalities using DTCs (Diagnostic Trouble Codes). Since various components need to be monitored du

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