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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COMPONENTS ILLUSTRATION *1 FUEL DELIVERY PIPE RH *2 FUEL DELIVERY PIPE WITH SENSOR ASSEMBLY LH *3 DIRECT FUEL INJECTOR ASSEMBLY *4 FUEL INJECTOR SEAL *5 NO. 2 FUEL PIPE SUB-ASSEMBLY *6 WIRE HARNESS CLAMP BRACKET *7 NO. 3 FUEL INJECTOR BACK-UP RING *8 O-RING
