Lexus ES manuals

Lexus ES: Diagnosis System

DIAGNOSIS SYSTEM

DESCRIPTION

(a) The DCM (telematics transceiver) control the vehicle safety connect system functions. Safety connect system data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3). In some cases, a malfunction may be occurring in the safety connect system. 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.

CHECK INDICATOR

(a) When a malfunction is detected in the safety connect system, the manual (SOS) switch red indicator on the manual (SOS) switch illuminates to inform the driver of the malfunction.

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READ NEXT:

 Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART Safety Connect System DTC No. Detection Item Link B153711 Telephone Sub Antenna Circuit Short to Ground B153713 Telephone Sub Antenna Circuit Open

 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 / Telematics / Trouble

 Emergency Call Switch Illumination Circuit

WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be need

SEE MORE:

 Slip Indicator Light does not Come ON

DESCRIPTION The skid control ECU (brake actuator assembly) controls the slip indicator light in the combination meter assembly via CAN communication. CAUTION / NOTICE / HINT NOTICE: After replacing the skid control ECU (brake actuator assembly), perform acceleration sensor zero point calibration and

 Lost Communication with Multi-axis Acceleration Sensor Module Missing Message (U012587,U012987,U014087,U029387)

DESCRIPTION These DTCs are stored if a CAN communication malfunction occurs between the forward recognition camera and other ECUs. DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from U012587 Lost Communication with Multi-axis Acceleration Sensor Module Missin

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