DTC P0C3E-628: DC / DC Converter Temperature Sensor "B" Range / Performance; DTC P0C41-627: DC / DC Converter Temperature Sensor "B" Intermittent / Erratic [10/2015 - ]: Description
The MG ECU located 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 hybrid vehicle control ECU assembly 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. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0C3E | 628 | Boost converter temperature (lower) calculated by the hybrid vehicle control ECU assembly is different from the actual temperature for 10 seconds or more, and the boost converter temperature (lower) is too high. (1 trip detection logic) |
|
| P0C41 | 627 | Sudden change in boost converter temperature sensor (lower) output or hunting: Either of the following conditions is met:
(1 trip detection logic) |
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.