Toyota Corolla Cross: Lost Communication with DC/DC Converter Control Module "C" Missing Message (U01BD87)
DESCRIPTION
The hybrid vehicle control ECU transmits and receives signals via CAN communication to and from the DC/DC converter assembly.
|
DTC No. | Detection Item |
DTC Detection Condition |
Trouble Area | MIL |
Warning Indicate | Note |
|---|---|---|---|---|---|---|
|
U01BD87 | Lost Communication with DC/DC Converter Control Module "C" Missing Message |
A CAN communication error between the DC/DC converter and hybrid vehicle control ECU (CAN communication system malfunction) occurs (1 trip detection logic) |
CAN communication system |
Does not come on | Master Warning: Comes on | SAE Code: U01BD |
CONFIRMATION DRIVING PATTERN
HINT:
After repairs have been completed, clear the DTCs and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
Click here .gif)
- Connect the GTS to the DLC3.
- Turn the ignition switch to ON and turn the GTS on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the ignition switch off and wait for 2 minutes or more.
- Turn the ignition switch to ON and turn the GTS on.
- Turn the ignition switch to ON (READY) and wait for 2 minutes or more.
- Enter the following menus: Powertrain / Hybrid Control / Utility / All Readiness.
- Check the DTC judgment result.
HINT:
- If the judgment result shows NORMAL, the system is normal.
- If the judgment result shows ABNORMAL, the system has a malfunction.
- If the judgment result shows INCOMPLETE or N/A, perform driving pattern again.
PROCEDURE
|
1. | CHECK DTC OUTPUT |
(a) Check for DTCs.
Powertrain > Hybrid Control > Trouble Codes| NEXT | .gif) | GO TO CAN COMMUNICATION SYSTEM |
