P1691

Manufacturer-specific fault code

This code has different meanings depending on the manufacturer. Select your vehicle make below to view specific diagnosis and solutions:

Code breakdown

P — System

Powertrain (engine, transmission, fuel & emissions)

1 — Type

Manufacturer-specific

6 — Subsystem

Computer output circuit

Fiat
Circuito elettrovalvola comando pressione turbo (Mazda)
Buick Cadillac Chevrolet GM GMC Saturn
Coolant Gage Circuit Low Voltage
Chrysler Dodge Jeep Plymouth Pontiac
Fuel Injection Pump Controller Calibration Failure
Mazda
Turbo Pressure Control Solenoid Circuit
Oldsmobile
Coolant Gauge Circuit Low Voltage
Volkswagen
MIL Open Circuit