Fault code lookup

PowertrainP1682

Caution

Severity: Caution - get it checked when you can

Ignition circuit malfunction

24 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 24

BrandCodeDescriptionSystem
BYDP1682EV gear solenoid valve circuit fault BrandPowertrain
CheryP1682Cruise Indicator Light Drive Circuit Short to Power BrandPowertrain
DaewooP1682Driver 5 Line 2 BrandPowertrain
DFXKP1682Cruise Indicator Light Drive Circuit Short to Power BrandPowertrain
EOBDP1682ABS/TCS modul BrandPowertrain
GeelyP1682Powertrain Data Bus: Implausible Message from ABS Controller BrandPowertrain
GMP1682Driver 5 Line 2 BrandPowertrain
Great WallP1682Cruise control indicator lamp short to battery BrandPowertrain
HoldenP1682Ignition 1 Switch Circuit 2 BrandPowertrain
HondaP1682No description available Powertrain
HyundaiP1682No description available Powertrain
IsuzuP1682No description available Powertrain
Land RoverP1682Metering oil pump failure BrandPowertrain
MitsubishiP1682No description available Powertrain
NissanP1682No description available Powertrain
OpelP1682Driver 5 Line 2 BrandPowertrain
PeugeotP1682No description available Powertrain
PorscheP1682No description available Powertrain
ProtonP1682No description available Powertrain
SaabP1682Driver 5 Line 2 BrandPowertrain
MG (SAIC)P1682Driver Input A/D Failure *8 BrandPowertrain
TataP1682No description available Powertrain
ToyotaP1682Ignition circuit malfunction BrandPowertrain
VolkswagenP1682Powertrain data bus: implausible message from ABS controller; Open circuit 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 3

These 7-character codes are manufacturer-specific variants of P1682 and may be reported by some scan tools.

BrandCodeDescriptionSystem
Mercedes-BenzP168200OBD Starter Control Unit Fehler 4 BrandPowertrain
PorscheP168200Databus drivetrain Implausible message from ABS control module BrandPowertrain
SprinterP168200OBD Starter Control Unit Fehler 4 BrandPowertrain

6Related codes

Browse Pxxx codes or P168xx codes.

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