Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Vehicles Speed Malfunction (B2624)
DESCRIPTION
The multiplex tilt and telescopic ECU forms a network with the ECUs of other systems via CAN communication. Each ECU informs the other ECUs that it is connected to the network by sending a specified signal (periodic signal) onto the communication bus on a regular basis. The multiplex tilt and telescopic ECU receives vehicle speed signals from the combination meter assembly via the CAN communication bus to prevent improper operation of the auto away/return function while driving.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B2624 | Vehicles Speed Malfunction |
|
|
PROCEDURE
| 1. | CHECK OTHER DTC OUTPUT (CAN COMMUNICATION SYSTEM) |
(a) Check for DTCs.
Click here .gif)
OK:
DTCs are not output.
| NG | .gif) | GO TO CAN COMMUNICATION SYSTEM |
|
.gif)
| 2. | READ VALUE USING TECHSTREAM (FREEZE SPEED INFO) |
(a) Turn the engine switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the engine switch on (IG).
(d) Turn the Techstream on.
(e) Check the vehicle speed signal on the Techstream.
(f) Enter the following menus: Body Electrical / Tilt & Telescopic / Data List.
Body Electrical > Tilt&Telescopic > Data List| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Freeze Speed Info | Vehicle speed data | Min.: 0 km/h (0 mph) Max.: 255 km/h (158 mph) | Actual vehicle speed | - |
| Tester Display |
|---|
| Freeze Speed Info |
| Result | Proceed to |
|---|---|
| Values indicated on the Techstream are normal. | A |
| Values indicated on the Techstream are abnormal. | B |
HINT:
A vehicle speed of 3 km/h (2 mph) or more may be displayed on the Techstream immediately after the vehicle comes to a sudden stop. This is caused by a delay in vehicle signal received via CAN communication and is not a malfunction.
| A | | REPLACE MULTIPLEX TILT AND TELESCOPIC ECU |
| B | | GO TO METER / GAUGE SYSTEM |
ECU Power Source Circuit Malfunction (B2620)
DESCRIPTION The ECU power source circuit supplies positive (+) voltage to the multiplex tilt and telescopic ECU. DTC No. Detection Item DTC Detection Condition Trouble Area B2620 ECU Po ...
Customize Parameters
CUSTOMIZE PARAMETERS CUSTOMIZE POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM HINT: The following items can be customized. NOTICE:
When the customer requests a change in a function, first m ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Power Back Door System (w/ Outside Door Control Switch): Jam Protection Function Activates During Power Back Door Operation
DESCRIPTION If the jam protection function activates during power back door operation, one of the following may be the cause: 1) improper fit of back door or a foreign object stuck in the back door, 2) malfunction in the power back door sensor assembly circuit or 3) multiplex network door ECU malfun ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Seat Position Sensor: Removal
REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed, installed, or replaced during the seat position airbag sensor removal/installation are shown below. Necessary Procedure After Parts Remo ...
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
0.0144