C1408 Diagnostic Trouble Code

C1408 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 C1408 diagnostic trouble code may include:

Misfire
Misfire
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
Hesitation upon acceleration

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
An air leak forward of the DPF will change the sensor readings resulting in the code

Repair Processes :

Now, clear the codes and test-drive the vehicle to see if the code is reset. Look for damage to the tank indicating impact that may have damaged the fuel pump or sender.

Process Tips

Diagnostic trouble code C1408 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 C1408.

Fortunately, C1408 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C1408 Trouble Code For Specific Cars

C1408 Lexus Ls 350 TCU Detected IPE Circuit Malfunction
C1408 Bmw Breyton Climate Control On/Off Switch Circuit Failure
C1408 Cadillac Lmp Diagnostic Lamp Driver Fault
C1408 Mercedes-benz Clk Class Air Suspension Compressor Relay Circuit Failure
C1408 Honda Acura Rl Pressure Control Solenoid B Performance
C1408 Willys-overland Dauphine SCP (J1850) Invalid or Missing Data for Remote Button Control
C1408 Auburn 8-88 Alarm Panic Input Circuit Short To Battery