Fault code lookup

PowertrainP1DB0

Caution

Severity: Caution - get it checked when you can

DC/DC converter transformer temperature sensor abnormal

15 brands affected · Description from Toyota data.

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

  1. Sensor or actuator fault
  2. Wiring or connector fault
  3. Vacuum or intake leak
  4. Fuel or ignition problem
  5. Control module fault

3Can I drive?

Caution · drive with care

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 15

BrandCodeDescriptionSystem
ChryslerP1DB0RBM fault BrandPowertrain
DaewooP1DB0No description available Powertrain
DFFSP1DB0Component internal error BrandPowertrain
EOBDP1DB0Implausible torque request signal sent BrandPowertrain
FiatP1DB0Implausible torque request signal sent BrandPowertrain
GMP1DB0No description available Powertrain
HoldenP1DB014V Power Module Output Voltage Exceeds Setpoint BrandPowertrain
HondaP1DB0No description available Powertrain
MaseratiP1DB0torque request signal sent incompatible BrandPowertrain
OpelP1DB0No description available Powertrain
PeugeotP1DB0No description available Powertrain
ProtonP1DB0No description available Powertrain
SaabP1DB0No description available Powertrain
MG (SAIC)P1DB0DCDC-Link Voltage Control out of Range BrandPowertrain
ToyotaP1DB0DC/DC converter transformer temperature sensor abnormal BrandPowertrain

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 1

These 7-character codes are manufacturer-specific variants of P1DB0 and may be reported by some scan tools.

BrandCodeDescriptionSystem
SsangYongP1DB011High voltage main relay stuck closed (-) BrandPowertrain

6Related codes

Browse Pxxx codes or P1DBxx codes.

OpenDTC - independent fault code reference