C1248 Diagnostic Trouble Code

C1248 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 C1248 diagnostic trouble code may include:

Carbon Buildup on O2 Sensor
Malfunction Indicator Lamp (MIL) illuminated
Hesitation upon acceleration
Engine surge

Possible Causes :

A plugged converter will cause of host of driveability problems as well as set this code. A severely plugged converter will result in the inability to increase rpm when under load. Look for a code such as P0421 -- catalytic converter efficiency below threshold if the converter indicating a faulty converter.
Dirty air cleaner element Damaged DPF
Some aftermarket accessories and performance modifications

Repair Processes :

You might continue by connecting the scanner to the vehicle diagnostic connector and retrieving all stored codes and freeze frame data. 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. Find out what kind of system you have and verify that voltage to the fuel level sensor is present at the fuel pump wiring harness.

Process Tips

Diagnostic trouble code C1248 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 C1248.

Fortunately, C1248 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C1248 Trouble Code For Specific Cars

C1248 Nissan Rogue 2 Crankshaft Position Sensor B Circuit Low Input
C1248 Fiat 500x Lamp Anti-Theft Indicator Circuit Failure
C1248 Suzuki Covie Memory Set Switch Circuit Open
C1248 Chrysler Plymouth EVR Control Circuit Malfunction
C1248 Mini Countryman ASM Control Circuit [Up / Down / Auto / etc]
C1248 Suzuki Baleno Memory 2 Switch Circuit Failure
C1248 Dodge R-ft Ignition Run/Start Circuit Short To Battery