Lexus ES: 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 airbag ECU assembly 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 |
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 |
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SEE MORE:
Definition Of Terms
DEFINITION OF TERMS Term Definition Monitor Description Description of what the hybrid vehicle control ECU monitors and how to detects malfunctions (monitoring purpose and its details). Related DTCs A group of diagnostic trouble codes that are output by the hybrid vehicle control EC
Installation
INSTALLATION CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
PROCEDURE 1. PRECAUTION NOTICE: After turning the engine switch (for Gasoline Model) or power switch (for HV Model) off, waiting time may be required bef
