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 |
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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:
Dtc Check / Clear
DTC CHECK / CLEAR DTC CHECK (a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3. (c) Turn the ignition switch to ON.
(d) Turn the Techstream on. (e) Read the DTCs following the prompts on the Techstream. Enter the following menus: Chassis / Brake / Trouble Codes. Chassis >
Wireless remote control/electronic key battery
Replace the battery with a new one if it is depleted.
You will need the following items:
Flathead screwdriver
Small flathead screwdriver
Lithium battery CR2032
Replacing the battery
Vehicles without a smart key system
1. Remove the key cover.
To prevent damage to the key,
cover the
