DESCRIPTION
The hybrid vehicle control ECU 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 | MIL | DTC Output from |
---|---|---|---|---|---|
U010487 | Lost Communication with Cruise Control Module Missing Message | When the power switch is on (IG) and the dynamic radar cruise control system is operating, a communication malfunction between the millimeter wave radar sensor assembly and hybrid vehicle control ECU is detected for approximately 1 second or more. |
| Does not come on | Hybrid vehicle control ECU |
U012287 | Lost Communication with Vehicle Dynamics Control Module Missing Message | When the power switch is on (IG) and the dynamic radar cruise control system is operating, a communication malfunction between the skid control ECU (brake booster with master cylinder assembly) and hybrid vehicle control ECU is detected for approximately 2.6 seconds or more. |
| Does not come on | Hybrid vehicle control ECU |
U029387 | Lost Communication with Hybrid Powertrain Control Module Missing Message | When the dynamic radar cruise control system is operating, a communication malfunction between the skid control ECU (brake booster with master cylinder assembly) and hybrid vehicle control ECU is detected for approximately 1 second or more. |
| Does not come on | Hybrid vehicle control ECU |
PROCEDURE
1. | CHECK FOR DTCs |
(a) Clear the DTCs.
Powertrain > Radar Cruise1 > 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.
Powertrain > Radar Cruise1 > Trouble Codes Result | Proceed to |
---|---|
DTC U010487, U012287 and U029387 are not output | A |
DTC U010487, U012287 or U029387 is output | B |
A | ![]() | USE SIMULATION METHOD TO CHECK |
B | ![]() | GO TO CAN COMMUNICATION SYSTEM |