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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Installation
INSTALLATION CAUTION / NOTICE / HINT HINT: The parking brake indicator light blinks (red) when the engine switch is turned on (IG) after replacing the brake actuator assembly. Operate the electric parking brake switch assembly to turn off the parking brake indicator light. PROCEDURE 1. INSTALL BRAKE
Hybrid/EV Battery Precharge Contactor Circuit Short to Auxiliary Battery or Open (P0AE415)
DESCRIPTION Refer to the description for DTC P0AE411. Click here DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate P0AE415 Hybrid/EV Battery Precharge Contactor Circuit Short to Auxiliary Battery or Open Open or short to +B in SMRP circuit: Prima
