Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Lost Communication With ECM/PCM "A" Missing Message (U010087,U012587,U012987,U014087)
DESCRIPTION
These DTCs are stored if a CAN communication malfunction occurs between the forward recognition camera and other ECUs.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from |
|---|---|---|---|---|
| U010087 | Lost Communication With ECM/PCM "A" Missing Message | The forward recognition camera does not receive data from the ECM for approximately 5 seconds or more. |
| Forward recognition camera |
| U012587 | Lost Communication With Multi-axis Acceleration Sensor Module Missing Message | The forward recognition camera does not receive data from the yaw rate sensor assembly*1 or airbag sensor assembly*2 for approximately 5 seconds or more. |
| Forward recognition camera |
| U012987 | Lost Communication with Brake System Control Module Missing Message | The forward recognition camera does not receive data from the skid control ECU (brake actuator assembly) for approximately 5 seconds or more. |
| Forward recognition camera |
| U014087 | Lost Communication with Body Control Module Missing Message | The forward recognition camera does not receive data from the main body ECU (multiplex network body ECU) for approximately 5 seconds or more. |
| Forward recognition camera |
- *1: for TFT Meter Type
- *2: for Optitron Meter Type
PROCEDURE
| 1. | CLEAR 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 / Front Recognition Camera (Front Lighting Control) / Trouble Codes.
(e) Clear the DTCs.
Body Electrical > Front Recognition Camera (Front Lighting Control) > Clear DTCs
|
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| 2. | CHECK FOR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Wait 10 seconds or more.
(d) Turn the Techstream on.
(e) Enter the following menus: Body Electrical / Front Recognition Camera (Front Lighting Control) / Trouble Codes.
(f) Check for DTCs.
Body Electrical > Front Recognition Camera (Front Lighting Control) > Trouble CodesOK:
DTCs are not output.
| OK | .gif) | USE SIMULATION METHOD TO CHECK |
| NG | | GO TO CAN COMMUNICATION SYSTEM |
Lost Communication With ECM/PCM "A" (U0100,...,U1126)
DESCRIPTION These DTCs are stored if a CAN communication malfunction occurs between the main body ECU (multiplex network body ECU) and other ECUs. DTC No. Detection Item DTC Detection Condition ...
Lost Communication with Cruise Control Front Distance Range Sensor Signal Sensor or Center Missing Message (U023587)
DESCRIPTION The forward recognition camera and millimeter wave radar sensor assembly communicate via CAN communication. If there is an error in the communication with the millimeter wave radar sensor ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Sfi System: Registration
REGISTRATION CAUTION / NOTICE / HINT PROCEDURE 1. VIN (VEHICLE IDENTIFICATION NUMBER) NOTICE: The Vehicle Identification Number (VIN) must be written to a replacement ECM. HINT: The VIN is a 17-digit alphanumeric vehicle identification number. The Techstream is required to register the VIN. (a) DESC ...
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Can Communication System: DCM Communication Stop Mode
DESCRIPTION Detection Item Symptom Trouble Area DCM Communication Stop Mode Either condition is met:
"DCM" is not displayed on the CAN Bus Check screen of the Techstream.
Click here
Communication system DTCs (DTCs that start with U) that correspond to "DCM Communication Stop Mode ...
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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