Fault code lookup

PowertrainP1680

Caution

Severity: Caution - get it checked when you can

Reset-Resistant Limp-Mode Active

22 brands affected · Description from Volkswagen 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 22

BrandCodeDescriptionSystem
BYDP1680SPI-2 communication fault BrandPowertrain
CheryP1680Reset-Resistant Limp-Mode Active BrandPowertrain
ChryslerP1680No description available Powertrain
DaewooP1680Limp-home mode - active BrandPowertrain
DFXKP1680Reset-Resistant Limp-Mode Active BrandPowertrain
EOBDP1680Nødmodus - aktiv BrandPowertrain
FordP1680No description available Powertrain
GeelyP1680Reset-Resistant Limp-Mode Active BrandPowertrain
GMP1680Limp-home mode - active BrandPowertrain
Great WallP1680Cruise indicator light drive circuit open BrandPowertrain
HoldenP1680Throttle Closed Position Performance BrandPowertrain
IsuzuP1680No description available Powertrain
Land RoverP1680Metering oil pump failure BrandPowertrain
MazdaP1680No description available Powertrain
OpelP1680Limp-home mode - active BrandPowertrain
PeugeotP1680No description available Powertrain
PorscheP1680No description available Powertrain
SaabP1680Limp-home mode - active BrandPowertrain
MG (SAIC)P1680High Voltage Supply for EOP Control *8 BrandPowertrain
SuzukiP1680Coolant Temp Signal BrandPowertrain
TataP1680Fuel LID Sensor Fault Low BrandPowertrain
VolkswagenP1680Reset-Resistant Limp-Mode Active 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 P1680 and may be reported by some scan tools.

BrandCodeDescriptionSystem
Mercedes-BenzP168000OBD Starter Control Unit Fehler 2 BrandPowertrain
SprinterP168000OBD Starter Control Unit Fehler 2 BrandPowertrain
SsangYongP168000Glow plug drive malfunction - short to ground BrandPowertrain

6Related codes

Browse Pxxx codes or P168xx codes.

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