Toyota Camry (XV70): Lost Communication with ECM/PCM "A" Missing Message (U010087,U012587,U012687,U012987,U014087)
DESCRIPTION
When a malfunction is detected between various ECUs and sensors, these DTCs are stored.
|
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
|---|---|---|---|
|
U010087 | Lost Communication with ECM/PCM "A" Missing Message |
3 seconds after the ignition switch is turned to ON, while the vehicle is being driven at 1 km/h or 1 mph or more, a communication error between the ECM and the forward recognition camera is detected for approximately 5 seconds or more. |
CAN communication system |
|
U012587 | Lost Communication with Multi-axis Acceleration Sensor Module Missing Message |
3 seconds after the ignition switch is turned to ON, while the vehicle is being driven at 1 km/h or 1 mph or more, a communication error between the airbag sensor assembly and the forward recognition camera is detected for approximately 5 seconds or more. |
CAN communication system |
|
U012687 | Lost Communication with Steering Angle Sensor Module Missing Message |
3 seconds after the ignition switch is turned to ON, a communication error between the steering sensor and the forward recognition camera is detected for approximately 5 seconds or more. |
CAN communication system |
|
U012987 | Lost Communication with Brake System Control Module Missing Message |
3 seconds after the ignition switch is turned to ON, a communication error between the skid control ECU (brake actuator assembly) and the forward recognition camera is detected for approximately 5 seconds or more. |
CAN communication system |
|
U014087 | Lost Communication with Body Control Module Missing Message |
3 seconds after the ignition switch is turned to ON, a communication error between the main body ECU (multiplex network body ECU) and the forward recognition camera is detected for approximately 5 seconds or more. |
CAN communication system |
PROCEDURE
| 1. |
CHECK FOR DTCs |
(a) Clear the DTCs.
Chassis > Front Recognition Camera > Clear DTCs(b) Make sure that the DTC detection conditions are met.
HINT:
If the detection conditions are not met, the system cannot detect the malfunction.
(c) Check for DTCs.
Chassis > Front Recognition Camera > Trouble Codes|
Result | Proceed to |
|---|---|
|
CAN communication system DTC is not output |
A |
| CAN communication system DTC is output |
B |
| A |
.gif) | USE SIMULATION METHOD TO CHECK
|
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| B |
| GO TO CAN COMMUNICATION SYSTEM |
READ NEXT:
Internal Control Module Software Incompatibility Not Programmed (U030051,U030057)
DESCRIPTION The forward recognition camera receives vehicle information from the ECM via the CAN communication line.
When the forward recognition camera is unable to determine the vehicle informatio
Software Incompatibility with Body Control Module Not Programmed (U032251)
DESCRIPTION The forward recognition camera receives vehicle information from the main body ECU (multiplex network body ECU) via CAN communication.
DTC U032251 is stored when the forward recognition
Software Incompatibility with Body Control Module Invalid/Incompatible Software Component (U032257)
DESCRIPTION The forward recognition camera receives vehicle information from the main body ECU (multiplex network body ECU) via CAN communication.
DTC U032257 is stored when the vehicle information
SEE MORE:
Data List / Active Test
DATA LIST / ACTIVE TEST DATA LIST NOTICE:
In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
HINT: Using the Techstream to read the Data List allows the values or state
General Information
GENERAL INFORMATION
A large number of ECU controlled systems are used in this vehicle. In general, ECU controlled systems are considered to be very intricate, requiring a high level of technical knowledge to troubleshoot. However, most problem checking procedures only involve inspecting the ECU
