Fault code lookup

PowertrainP0C81

Caution

Severity: Caution - get it checked when you can

Key transponder failure

21 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 21

BrandCodeDescriptionSystem
Ashok Leyland CVP0C81No description available Powertrain
BAIC MotorP0C81Hybrid Battery Temperature Sensor 'H' Circuit BrandPowertrain
BYDP0C81Hybrid Battery Temperature Sensor 'H' Circuit BrandPowertrain
CheryP0C81Hybrid Battery Temperature Sensor 'H' Circuit BrandPowertrain
DFFSP0C81Key transponder failure BrandPowertrain
DFFXP0C81Hybrid Battery Temperature Sensor 'H' Circuit BrandPowertrain
DFXKP0C81Hybrid Battery Temperature Sensor 'H' Circuit BrandPowertrain
EOBDP0C81Litar penderia suhu bateri Hibrid/EV 'H' BrandPowertrain
GeelyP0C81Hybrid Battery Temperature Sensor 'H' Circuit BrandPowertrain
GMP0C81Hybrid Battery Temperature Sensor 'H' Circuit BrandPowertrain
Great WallP0C81Hybrid Battery Temperature Sensor 'H' Circuit BrandPowertrain
HafeiP0C81Hybrid Battery Temperature Sensor 'H' Circuit BrandPowertrain
HondaP0C81No description available Powertrain
HyundaiP0C81No description available Powertrain
IsuzuP0C81No description available Powertrain
Land RoverP0C81Hybrid/EV Battery Temperature Sensor 'H' Circuit BrandPowertrain
PeugeotP0C81No description available Powertrain
SaabP0C81Hybrid Battery Temperature Sensor 'H' Circuit BrandPowertrain
MG (SAIC)P0C81Hybrid Battery Temperature Sensor 'H' Circuit BrandPowertrain
SuzukiP0C81No description available Powertrain
ToyotaP0C81Key transponder failure 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 P0C81 and may be reported by some scan tools.

BrandCodeDescriptionSystem
Mercedes-BenzP0C8101Hybrid/EV Battery Temperature Sensor 'H' Circuit. General Electrical Failure. BrandPowertrain

6Related codes

Browse Pxxx codes or P0C8xx codes.

OpenDTC - independent fault code reference