C1957 Diagnostic Trouble Code

C1957 is a kind of OBD-II Diagnostic C-Chassis Diagnostic Trouble Code.

It is considered generic because it applies to all makes and models of vehicles, although specific repair steps may be different depending on your car model.

Symptoms

Symptoms of a C1957 diagnostic trouble code may include:

Reduction in engine performance, especially at low RPM levels
Vacuum leak on the engine
Diminished fuel efficiency
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

Possible Causes :

Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
Dirty air cleaner element Damaged DPF

Repair Processes :

Look for damage to the tank indicating impact that may have damaged the fuel pump or sender. Oxygen sensors signal the engine management computer the amount of oxygen present in the exhaust, which is used in determining and controlling the fuel ratio. You might continue by connecting the scanner to the vehicle diagnostic connector and retrieving all stored codes and freeze frame data.

Process Tips

Diagnostic trouble code C1957 is not difficult to diagnose and repair. Thus, it always pays to have a qualified technician to look after your vehicle should this error code arise.

Diagnosing this code requires the engine to be in good running shape, without unmetered air entering the engine. If other codes that relates to misfiring condition, lean running or air entering the engine is present, then you must first fix those error codes before C1957.

Fortunately, C1957 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C1957 Trouble Code For Specific Cars

C1957 Humber Super Snipe Right Rear Turn Lamp Circuit Short to Battery
C1957 Triumph Dove Passenger's Seatback Autoglide Forward Switch Circuit Short to Ground
C1957 Tvr Tuscan Power Steering Pressure Sensor Circuit Low Input
C1957 Chrysler Neon Evaporative Emission Control System Vent Control Circuit Malfunction
C1957 Volvo Hatric SCP (J1850) Invalid or Missing Data for Engine Sensors
C1957 Chrysler Sebring Exhaust Gas Recirculation Circuit Range/Performance
C1957 Alpine Berlinette Air Bag Passenger Circuit Short to Battery - Loop #2