Lexus ES: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
NOTICE:
Before replacing the main body ECU (multiplex network body ECU), refer to Registration.
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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 suspected areas in the order they are listed. Replace parts as necessary.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
| Symptom | Suspected Area | Link |
|---|---|---|
| Luggage compartment door closer does not operate | Luggage closer motor assembly | |
| Wire harness or connector | ||
| Luggage door closer assembly | ||
| Power trunk lid door does not operate using any switches | Check for DTCs | |
| Wire harness or connector | ||
| Luggage closer motor assembly | ||
| Luggage door opening cancel switch assembly | ||
| Main body ECU (multiplex network body ECU) | ||
| Power trunk lid does not operate using cabin switch | Main body ECU (multiplex network body ECU) | |
| Trunk and fuel switch assembly (luggage compartment door opening switch) | ||
| Wire harness or connector | ||
| Power trunk lid does not operate using outside switch (only close operation) | Luggage closer motor assembly | |
| Door Control Switch | ||
| Wire harness or connector | ||
| Power trunk lid does not be operated using kick sensor operation | Check for DTCs | |
| Kick door control sensor | ||
| Wire harness or connector | ||
| Instrument panel junction block assembly | ||
| Wire harness or connector | ||
| Luggage closer motor assembly | ||
| Power trunk lid does not be operated using kick sensor operation and luggage electrical key switch | Proceed to "Smart Access System with Push-bottom Start (for Entry Function)" | |
| With all doors locked, the power trunk lid does not operate according to the luggage electrical key switch operation while the electrical key transmitter sub-assembly is being held | Proceed to "Smart Access System with Push-bottom Start (for Entry Function)" | |
| With all doors unlocked, the power trunk lid does not operate according to the luggage electrical key switch operation without carrying the electrical key transmitter sub-assembly | Check the customization setting | |
| Main body ECU (multiplex network body ECU) | | |
| The power trunk lid does not operate according to the electrical key transmitter sub-assembly operation (the power trunk lid operates with the cabin switch) | Electrical key transmitter sub-assembly | |
| The luggage compartment door closer does not reverse rotation operation properly when the luggage electrical key switch is operated (during the luggage compartment door closer operation) (luggage compartment door closer is normally) | Proceed to "Smart Access System with Push-bottom Start (for Entry Function)" | |
READ NEXT:
Terminals Of Ecu
TERMINALS OF ECU CHECK LUGGAGE CLOSER MOTOR ASSEMBLY (a) Disconnect the R7 luggage closer motor assembly connector. (b) Measure the voltage and resistance according to the value(s) in the table below
Dtc Check / Clear
DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Back Door / Trouble
Data List / Active Test
DATA LIST / ACTIVE TEST DATA LIST NOTICE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a pa
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