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 > Vehicle Stability Control System: Right Rear Wheel Speed Sensor Circuit Intermittent (C05121F)
DESCRIPTION The speed sensor detects wheel speed and sends the appropriate signals to the skid control ECU (brake actuator assembly). These signals are used for brake control. Speed sensor rotors have rows of alternating N and S magnetic poles, and their magnetic fields change when the rotors turn. ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Power Steering System: Torque Sensor Zero Point Adjustment Incomplete (C1516)
DESCRIPTION This DTC does not indicate a malfunction. The power steering ECU assembly stores this DTC when it determines that torque sensor zero point calibration has not completed. DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Return-to-normal Condition ...
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
0.0169