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 | | 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 error 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. |
- CAN communication system
- Hybrid vehicle control ECU
- skid control ECU (brake booster with master cylinder assembly)
| Does not come on | |
U029387 | Lost Communication With Hybrid Powertrain Control Module Missing Message |
While
the vehicle speed is 5 km/h (3 mph) or more and the dynamic radar
cruise control system is operating, the hybrid vehicle control ECU
continuously receives a communication cut-off signal from the skid
control ECU (brake booster with master cylinder assembly) for
approximately 1 second or more. |
- CAN communication system
- Hybrid vehicle control ECU
- Skid control ECU (brake booster with master cylinder assembly)
| Does not come on | |
U110487 | Lost Communication with Driving Support ECU Missing Message |
While
the vehicle speed is 5 km/h (3 mph) or more and the dynamic radar
cruise control system is operating, a communication error between the
driving support ECU assembly and Hybrid vehicle control ECU is detected
for 1 second or more. |
- CAN communication system
- Hybrid vehicle control ECU
- Driving support ECU assembly
| Does not come on | PROCEDURE
(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 U012287, U029387 and U110487 are not output |
A | | DTC U012287, U029387 or U110487 is output |
B |
| A |
 | USE SIMULATION METHOD TO CHECK |
| B |
| GO TO CAN COMMUNICATION SYSTEM | |
