Lexus ES: Precaution
PRECAUTION
PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL
NOTICE:
When disconnecting the cable from the negative (-) auxiliary battery terminal, initialize the following systems after the terminal is reconnected.
| System Name | See Procedure |
|---|---|
| Lane Control System | |
| Pre-collision System | |
| Intelligent Clearance Sonar System | |
| Parking Assist Monitor System | |
| Panoramic View Monitor System | |
| Lighting System (w/ Automatic Headlight Beam Level Control System) | |
| Power Door Lock Control System | |
| Power Back Door System (w/ Outside Door Control Switch) |
WHEN AUTOMATIC COLLISION NOTIFICATION HAS ACTIVATED
(a) Perform "ACN CALL END" with the Techstream to terminate ACN (Automatic Collision Notification) with the call center.
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WHEN DISCONNECTING CONNECTORS FROM DCM (TELEMATICS TRANSCEIVER)
(a) The power switch must be off.
WHEN REPLACING DCM (TELEMATICS TRANSCEIVER)
(a) After installing a new DCM (telematics transceiver), perform "DCM ACTIVATION" with the Techstream. This allows the Telematics service provider to register the new DCM (telematics transceiver) and to delete the old DCM (telematics transceiver) information from their database.
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NOTICE:
Do not replace the DCM (telematics transceiver) with one from another vehicle.
WHEN UNABLE TO CONTACT WITH CALL CENTER BUT NO DTC
(a) This may occur when the cellular signal strength was very weak. Check "DCM OPERATION HISTORY" with the Techstream.
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WHEN DIAGNOSING DCM (TELEMATICS TRANSCEIVER)
(a) While attempting to diagnose the DCM (telematics transceiver), do not use a DCM (telematics transceiver) from another vehicle. Each DCM (telematics transceiver) is registered to a specific VIN and should not be tested in another vehicle.
PRECAUTION FOR DCM (TELEMATICS TRANSCEIVER)
(a) The DCM (telematics transceiver) uses a LTE (Long Term Evolution) type radio wave signal. The radio wave signals and communication lines may occasionally be unstable depending on time or location factors. Therefore, network access errors may occur intermittently because of radio wave signal conditions. To determine if there is a problem, it may be necessary to make a judgment based on the frequency of the phenomenon or by making a comparison with a comparable type of cell phone.
(b) With the exception of replacing the mobilephone battery, the DCM (telematics transceiver) cannot be disassembled (the DCM (telematics transceiver) case must not be opened). Replace parts.
PRECAUTION FOR MOBILEPHONE BATTERY
(a) The mobilephone battery is a Lithium-ion type battery and can be charged from the DCM (telematics transceiver).
(b) When ACN (Automatic Collision Notification) is performed, the mobilephone battery provides power to the DCM (telematics transceiver).
NOTICE:
The mobilephone battery must not be replaced while an ACN call is in progress.
HINT:
When a Manual Emergency Call is made, the mobilephone battery is not used as the power source.
(c) When it is time to replace the mobilephone battery, the manual (SOS) switch red indicator will come on. The DCM (Telematics Transceiver) will also store a DTC or specific vehicle control history (RoB) code.
PRECAUTION FOR REGISTRATION
(a) If replacing any of the following parts, refer to Initialization.
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(1) DCM (telematics transceiver)
(2) Mobilephone battery
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Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of
Red Indicator Remains On
DESCRIPTION This means that the DCM (telematics transceiver) has detected a malfunction in the safety connect system and stored a DTC or specific vehicle control history (RoB) Code. PROCEDURE 1.
System Diagram
SYSTEM DIAGRAM
SEE MORE:
Front Passenger Side Power Window does not Operate with Front Passenger Side Power Window Switch
DESCRIPTION When the engine switch is on (IG), the power window regulator motor assembly (for front passenger door) is operated by the power window regulator switch assembly. The power window regulator motor assembly (for front passenger door) has motor, regulator, and ECU functions. WIRING DIAGRAM
Reassembly
REASSEMBLY CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
PROCEDURE 1. PRECAUTION NOTICE: After turning the engine switch (for Gasoline Model) or power switch (for HV Model) off, waiting time may be required befor
