Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: Data List / Active Test
DATA LIST / ACTIVE TEST
DATA LIST
HINT:
Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.
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 part is faulty or not.
(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 / Main Body or Smart Access / Data List.
(e) Read the Data List according to the display on the Techstream.
Body Electrical > Main Body > Data List| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Communication D-Door Motor | Connection status between power window regulator motor assembly (for driver door) and main body ECU (multiplex network body ECU) | OK or STOP | OK: Connected STOP: Not Connected | DTC is output if an error occurs in LIN communication. |
| Communication P-Door Motor | Connection status between power window regulator motor assembly (for front passenger door) and main body ECU (multiplex network body ECU) | OK or STOP | OK: Connected STOP: Not Connected | DTC is output if an error occurs in LIN communication. |
| Communication RR-Door Motor | Connection status between power window regulator motor assembly (for rear RH door) and main body ECU (multiplex network body ECU) | OK or STOP | OK: Connected STOP: Not Connected | DTC is output if an error occurs in LIN communication. |
| Communication RL-Door Motor | Connection status between power window regulator motor assembly (for rear LH door) and main body ECU (multiplex network body ECU) | OK or STOP | OK: Connected STOP: Not Connected | DTC is output if an error occurs in LIN communication. |
| Communication Slide Roof | Connection status between main body ECU (multiplex network body ECU) and sliding roof ECU (sliding roof drive gear sub-assembly)*1 or sliding roof ECU (sliding roof drive gear assembly)*2 | OK or STOP | OK: Connected STOP: Not Connected | DTC is output if an error occurs in LIN communication. |
| Communication Master SW | Connection status between multiplex network master switch assembly and main body ECU (multiplex network body ECU) | OK or STOP | OK: Connected STOP: Not Connected | DTC is output if an error occurs in LIN communication. |
| Communication Sliding Sunshade ECU | Connection status between roof sunshade ECU (sliding roof drive gear assembly) and main body ECU (multiplex network body ECU)*2 | OK or STOP | OK: Connected STOP: Not Connected | DTC is output if an error occurs in LIN communication. |
| The Number of DTC | Number of DTCs | 0 to 255 | Number of stored DTCs | - |
- *1: w/ Sliding Roof System
- *2: w/ Panoramic Moon Roof System
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| # Codes | Number of DTCs | 0 to 255 | Number of stored DTCs | - |
Terminals Of Ecu
TERMINALS OF ECU CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (a) Disconnect the MB main body ECU (multiplex network body ECU) connector. Click here ...
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 / Main Body or Smart ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Steering Lock System: Diagnosis System
DIAGNOSIS SYSTEM DESCRIPTION (a) The steering lock ECU (steering lock actuator or upper bracket assembly) stores DTCs when a malfunction occurs in the system. These DTCs can be confirmed by using the Techstream. NOTICE:
When using the Techstream with the engine switch off to confirm DTCs or Data ...
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Lighting System (w/ Automatic Headlight Beam Level Control System): Headlight Beam Level Control Motor LH Lost Communication (B2424,B2425)
DESCRIPTION Each No. 1 headlight ECU sub-assembly and headlight leveling motor communicate via LIN communication. The headlight leveling motor operates according to power supplied and automatic headlight beam level control signals from its respective No. 1 headlight ECU sub-assembly and sends its op ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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