Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: 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 suspected areas in the order they are listed. Replace parts as necessary.
- Inspect the fuses and relays related to the system before inspecting the suspected areas below.
- If the problem occurs in certain locations or times of day, the possibility of wave interference is high.
- If a malfunction occurred after optional components were installed by the dealer, check if there is wave interference from the components.
| Symptom | Suspected Area | Link |
|---|---|---|
| Power source mode does not change to on (IG) or on (ACC) | Refer to "Power Source Mode does not Change to ON (IG and ACC)" | |
| Power source mode does not change to on (IG) | Refer to "Power Source Mode does not Change to ON (IG)" | |
| Power source mode does not change to on (ACC) | Refer to "Power Source Mode does not Change to ON (ACC)" | |
| Engine does not start | Refer to "Engine does not Start" | |
| Engine cannot be started by remote air conditioner with remote start (Both the wireless door lock control system and push-button start function operate normally)* | Refer to "Remote Engine Starter does not Operate" | |
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- *: w/ Lexus Enform Remote
Customize Parameters
CUSTOMIZE PARAMETERS CUSTOMIZE SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function) NOTICE:
When the customer requests a change in a function, first make sure that the function can be cu ...
Terminals Of Ecu
TERMINALS OF ECU CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (a) Disconnect the A74, R1 and J41 certification ECU (smart key ECU assembly) connectors. (b) Measure the voltage and resistance acco ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Theft Deterrent / Keyless Entry: Engine Hood Courtesy Switch
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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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