Toyota Camry (XV70): Lost Communication with ECM/PCM "A" Missing Message (U010087,U012587,U012987,U014087,U015587)
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 or more after the ignition switch to ON, while the road sign assist system is on and 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 or more after the ignition switch to ON, while the road sign assist system is on and 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 |
|
U012987 | Lost Communication with Brake System Control Module Missing Message |
3 seconds or more after the ignition switch to ON, while the road sign assist system is 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 or more after the ignition switch to ON, while the road sign assist system is 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 |
|
U015587 | Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message |
3 seconds or more after the ignition switch to ON, while the road sign assist system is on, a communication error between the combination meter assembly and the forward recognition camera is detected for approximately 50 seconds or more. |
CAN communication system |
PROCEDURE
| 1. |
CHECK FOR DTCs |
(a) Clear the DTCs.
Body Electrical > Road Sign Assist > 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.
Body Electrical > Road Sign Assist > 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:
Battery
ComponentsCOMPONENTS ILLUSTRATION
*1 BATTERY
*2 NEGATIVE BATTERY TERMINAL
*3 POSITIVE BATTERY TERMINAL
*4 NO. 2 BATTERY CLAMP
*5 BATTERY TERMINAL CAP
SEE MORE:
Dtc Check / Clear
DTC CHECK / CLEAR CHECK DTC (a) Check the DTCs.
(1) Connect the Techstream to the DLC3. (2) Turn the ignition switch to ON.
(3) Turn the Techstream on. (4) Read the DTCs following the prompts on the Techstream screen. Enter the following menus: Chassis / Four Wheel Drive / Trouble Codes. Chassis
Brake Pressure Control Solenoid "A" Control Circuit Short to Battery (C13C012,...,C13C949)
DESCRIPTION The ABS solenoid relay and master cylinder cut solenoid valves are built into the brake actuator assembly.
Depending on the operating conditions, the master cylinder cut solenoid valves regulate the brake fluid pressure generated by the pump motor.
When this DTC is stored, the fail-s
