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 cable is reconnected.
| System Name | See Procedure |
|---|---|
| Lane Control System (for HV Model) | |
| Parking Support Brake System (for HV Model) | |
| Parking Assist Monitor System (for HV Model) | |
| Panoramic View Monitor System (for HV Model) | |
| Pre-collision System (for HV Model) | |
| Power Trunk Lid System (for HV Model) | |
| Lighting System (for HV Model) |
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PRECAUTIONS FOR VEHICLE PROXIMITY NOTIFICATION SYSTEM
(a) In the following cases, the volume or tone of the sound might change:
(1) If the vehicle is parked in a very hot or cold environment for an extended period of time (function will return to normal after time passes)
(2) If high pressure water is applied directly to the speaker from the bottom of the vehicle
(3) If the front of the speaker is blocked by mud, snow, ice, etc.
(4) If the entire speaker freezes
(b) In the following cases, it may be difficult to hear the sound from the speaker:
(1) If the environment around the vehicle is very noisy (in a busy intersection or when an emergency vehicle is approaching)
(2) If the listener is behind the vehicle. (Compared to a situation such as when a pedestrian is in front of the vehicle, the sound volume will seem to be lower when the car is reversing. This occurs because the speaker is installed facing the front of the vehicle.)
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Parts Location
PARTS LOCATION ILLUSTRATION *1 VEHICLE APPROACHING SPEAKER ASSEMBLY *2 SKID CONTROL ECU (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY) ILLUSTRATION *1 HYBRID VEHICLE CONTROL ECU *2
System Diagram
SYSTEM DIAGRAM
System Description
SYSTEM DESCRIPTION Vehicle Proximity Notification System (a) When the vehicle is being driven quietly using the motor only, the vehicle proximity notification system outputs a warning sound from the v
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Check Bus 2 Line for Short to GND
DESCRIPTION There may be a short circuit between one of the CAN bus lines and GND when there is no resistance between terminal 18 (CA4H) of the central gateway ECU (network gateway ECU) and terminal 4 (CG) of the DLC3, or terminal 17 (CA4L) of the central gateway ECU (network gateway ECU) and termin
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 probability in the "Suspected Area" column of the table. Check each symptom by checking the suspect
