Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
NOTICE:
When the fold seat control ECU (RH/LH seat) is replaced , it is necessary to perform initialization.
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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 |
|---|---|---|
| Fold/Return functions do not operate. (Using fold seat switch assembly and No. 1 fold seat switch assembly) | Initialization | |
| Proceed to "Power Source Circuit" | | |
| Proceed to "Park/Neutral Position Switch Circuit" | | |
| Proceed to "IG Signal Circuit" | | |
| Proceed to "Power Seat Motor Circuit" | | |
| Fold seat control ECU (RH seat) | | |
| Fold seat control ECU (LH seat) | | |
| Fold/Return functions do not operate. (Using No. 1 fold seat switch assembly) | Proceed to "Back Door Courtesy Switch Circuit" | |
| Proceed to "Fold Seat Switch Circuit" | | |
| Fold seat control ECU (RH seat) | | |
| Fold seat control ECU (LH seat) | | |
| Fold/Return functions do not operate. (Using fold seat switch assembly) | Proceed to "Fold Seat Switch Circuit" | |
| Fold seat control ECU (RH seat) | | |
| Fold seat control ECU (LH seat) | | |
| Buzzer sounds continuously even though the rear No. 2 power seat is in the fully folded or returned position | Initialization | |
| Operation check | | |
| Proceed to "Position Sensor Circuit" | | |
| Fold seat control ECU (RH seat) | | |
| Fold seat control ECU (LH seat) | | |
| Jam protection function operates unnecessarily | Check for foreign objects around the rear No. 2 power seat | - |
| Initialization | | |
| Operation check | | |
| Proceed to "Position Sensor Circuit" | | |
| Fold seat control ECU (RH seat) | | |
| Fold seat control ECU (LH seat) | |
Initialization
INITIALIZATION 1. INITIALIZATION (INITIAL POSITION CLEAR) NOTICE: It is necessary to perform initialization (initial position clear) if any of the following conditions are met.
The fold seat contro ...
Terminals Of Ecu
TERMINALS OF ECU CHECK FOLD SEAT CONTROL ECU (RH SEAT) (a) Disconnect the x15 and x16 fold seat control ECU (RH seat) connectors. (b) Measure the resistance and voltage according to the value(s) in t ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Differential Case: Disassembly
DISASSEMBLY PROCEDURE 1. REMOVE DIFFERENTIAL CASE TAPERED ROLLER BEARING (FRONT SIDE) (a) Using SST, remove the differential case tapered roller bearing (front side inner race) from the differential case assembly. SST: 09950-00020 SST: 09950-00030 SST: 09950-60010 09951-00480 *a Tu ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Audio And Visual System (for 8 Inch Display): XM Tuner Antenna Disconnected (B15FE,B15FF)
DESCRIPTION These DTCs are stored when a malfunction occurs in the telephone antenna assembly which is connected to the radio receiver assembly. DTC No. Detection Item DTC Detection Condition Trouble Area B15FE XM Tuner Antenna Disconnected The telephone antenna assembly is not conn ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
- Pictorial index
- For safety and security
- Instrument cluster
- Operation of each component
- Driving
- Lexus Display Audio system
- Interior features
- Maintenance and care
- When trouble arises
- Vehicle specifications
- For owners
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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