The ECM communicates with each sensor and ECU via CAN communication.
If any malfunction is detected in a CAN communication circuit, one or more CAN communication system DTCs are stored.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from |
|---|---|---|---|---|
| U010087 | Lost Communication With ECM/PCM "A" Missing Message | When the dynamic radar cruise control system is operating, a communication malfunction between the skid control ECU (brake actuator assembly) and ECM is detected for approximately 1 second or more. | CAN communication system | Cruise Control |
| U010487 | Lost Communication with Cruise Control Module Missing Message | When the ignition switch is ON and the dynamic radar cruise control system is operating, a communication malfunction between the millimeter wave radar sensor assembly and ECM is detected for approximately 1 second or more. | CAN communication system | Cruise Control |
| U012287 | Lost Communication with Vehicle Dynamics Control Module Missing Message | When the ignition switch is ON and the dynamic radar cruise control system is operating, a communication malfunction between the skid control ECU (brake actuator assembly) and ECM is detected for approximately 2.6 seconds or more. | CAN communication system | Cruise Control |
| U015500 | Lost Communication With Instrument Panel Cluster (IPC) Control Module | After approximately 2 seconds have elapsed since turning the ignition switch to ON and with the dynamic radar cruise control system on, data communication is lost from the combination meter assembly to the ECM for approximately 7 seconds or more. | CAN communication system | Cruise Control |
Clear the DTCs.
Make sure that the DTC detection conditions are met.
If the detection conditions are not met, the system cannot detect the malfunction.
Check for DTCs.
| Result | Proceed to |
|---|---|
| DTC U010087, U010487, U012287 and U015500 are not output | A |
| DTC U010087, U010487, U012287 or U015500 is output | B |
A
B
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