PowertrainP0C39
CautionSeverity: Caution - get it checked when you can
DC/DC converter temperature sensor 'A' range/performance
Key terms: Control module: a small computer that runs one part of the car · Powertrain: engine, transmission and emissions
1What it means in plain English
The engine or powertrain control system has stored a fault that does not have specific guidance in this database yet.
2Common causes
- Sensor or actuator fault
- Wiring or connector fault
- Vacuum or intake leak
- Fuel or ignition problem
- Control module fault
3Can I drive?
Have it diagnosed promptly. If the car runs and drives normally, drive gently to a workshop. If it runs badly, stalls, overheats, loses oil pressure, or a warning light is flashing or red, stop safely and get professional help. If the code concerns the brakes, brake vacuum or brake assist, do not drive until it is checked: a hard pedal or longer stopping distance means stop.
This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.
4Brand data 25
| Brand | Code | Description | System |
|---|---|---|---|
| Ashok Leyland CV | P0C39 | Cylinder 6. Specific Errors Stop The Engine. Not-Classifyable Error Brand | Powertrain |
| BAIC Motor | P0C39 | DC/DC Converter Temperature Sensor 'A' Range/Performance Brand | Powertrain |
| Mercedes-Benz | P0C39 | No description available | Powertrain |
| BYD | P0C39 | DC/DC Converter Temperature Sensor 'A' Range/Performance Brand | Powertrain |
| Chery | P0C39 | DC/DC Converter Temperature Sensor 'A' Range/Performance Brand | Powertrain |
| Chrysler | P0C39 | No description available | Powertrain |
| DFFS | P0C39 | DC/DC Converter Temperature Sensor 'A' Range/Performance Brand | Powertrain |
| DFFX | P0C39 | DC/DC Converter Temperature Sensor 'A' Range/Performance Brand | Powertrain |
| DFXK | P0C39 | DC/DC Converter Temperature Sensor 'A' Range/Performance Brand | Powertrain |
| EOBD | P0C39 | Penderia suhu penukar DC/DC 'A' julat/keperluan Brand | Powertrain |
| Ford | P0C39 | No description available | Powertrain |
| Geely | P0C39 | DC/DC Converter Temperature Sensor 'A' Range/Performance Brand | Powertrain |
| GM | P0C39 | DC/DC Converter Temperature Sensor 'A' Range/Performance Brand | Powertrain |
| Great Wall | P0C39 | DC/DC Converter Temperature Sensor 'A' Range/Performance Brand | Powertrain |
| Hafei | P0C39 | DC/DC Converter Temperature Sensor 'A' Range/Performance Brand | Powertrain |
| Honda | P0C39 | No description available | Powertrain |
| Hyundai | P0C39 | No description available | Powertrain |
| Isuzu | P0C39 | No description available | Powertrain |
| Land Rover | P0C39 | DC/DC Converter Temperature Sensor 'A' Range/Performance Brand | Powertrain |
| Mazda | P0C39 | No description available | Powertrain |
| Peugeot | P0C39 | No description available | Powertrain |
| Saab | P0C39 | DC/DC Converter Temperature Sensor 'A' Range/Performance Brand | Powertrain |
| MG (SAIC) | P0C39 | DC/DC Converter Temperature Sensor 'A' Range/Performance Brand | Powertrain |
| Subaru | P0C39 | No description available | Powertrain |
| Toyota | P0C39 | DC/DC converter temperature sensor 'A' range/performance Brand | Powertrain |
Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.
5Extended variant codes 9
These 7-character codes are manufacturer-specific variants of P0C39 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | P0C3900 | Temperature sensor Out of Range Low/High Brand | Powertrain |
| Mercedes-Benz | P0C391F | DC/DC Converter Temperature Sensor 'A' Range/Performance There is a sporadic fault. Brand | Powertrain |
| Mercedes-Benz | P0C3926 | DC/DC Converter Temperature Sensor 'A' Range/Performance The signal change rate is below the permissible limit value. Brand | Powertrain |
| Mercedes-Benz | P0C3927 | DC/DC Converter Temperature Sensor 'A' Range/Performance The signal change rate is above the permissible limit value. Brand | Powertrain |
| Mercedes-Benz | P0C3928 | Temperature sensor A of the DC/DC converter has a malfunction. Signal bias level out of range / Zero adjustment failure Brand | Powertrain |
| Mercedes-Benz | P0C3962 | Temperature sensor A of the DC/DC converter has a malfunction. The signal comparison is faulty. Brand | Powertrain |
| Mercedes-Benz | P0C3984 | Temperature sensor A of the DC/DC converter has a malfunction. There is a signal below the permissible limit value. Brand | Powertrain |
| Mercedes-Benz | P0C3985 | Temperature sensor A of the DC/DC converter has a malfunction. There is a signal above the permissible limit value. Brand | Powertrain |
| Mercedes-Benz | P0C3998 | Temperature sensor A of the DC/DC converter has a malfunction. The component or the system has overtemperature. Brand | Powertrain |
6Related codes
Browse Pxxx codes or P0C3xx codes.