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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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
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Tilt and Telescopic ECU Communication Stop Mode
DESCRIPTION Detection Item Symptom Trouble Area Tilt and Telescopic ECU Communication Stop Mode Any of the following conditions are met:
Communication stop for "Multiplex Tilt and Telescopic" is indicated on the "Communication Bus Check" screen of the Techstream.
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Comm
Installation
INSTALLATION PROCEDURE 1. INSTALL SLIDING ROOF OR REMOVABLE ROOF HOUSING SUB-ASSEMBLY (a) Loosen the 4 bolts of the brackets of the sliding roof or removable roof housing sub-assembly. (b) Temporarily install the sliding roof or removable roof housing sub-assembly with the 6 nuts and 8 bolts. (c)
