DTC P0C3E-628: DC / DC Converter Temperature Sensor "B" Range / Performance; DTC P0C41-627: DC / DC Converter Temperature Sensor "B" Intermittent / Erratic [02/2014 - 11/2016]: Description
The MG ECU, which is built into in the inverter with converter assembly, detects the temperature of the boost converter using the temperature sensor built into the boost converter. If necessary, the MG ECU will limit inverter output to help prevent boost converter overheating. The power management control ECU also detects malfunctions in the sensor based on the temperature sensor values. The inverter with converter assembly detects malfunctions in the boost converter temperature sensor and its wiring.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
|---|---|---|---|---|---|
| P0C3E-628 | DC / DC Converter Temperature Sensor "B" Range / Performance | Boost converter temperature (lower) calculated by the power management control ECU is different from the actual temperature for 10 seconds or more, and the boost converter temperature (lower) is excessively high. (1 trip detection logic) |
|
Does not come on | Master Warning Light: Comes on |
| P0C41-627 | DC / DC Converter Temperature Sensor "B" Intermittent / Erratic | Sudden change in boost converter temperature sensor (lower) output or hunting: Either of the following conditions is met:
(1 trip detection logic) |
|
Does not come on | Master Warning Light: Comes on |
HINT:
*: If only DTC P0C41-627 is output, a temperature sensor malfunction is more likely to be the cause than a sudden change in actual temperature.
RELATED DATA LIST
| DTC No. | Data List |
|---|---|
| P0C3E-628 |
|
| P0C41-627 |
The following items can be helpful when performing repairs:
Operation History Data
- Converter Heating