C0753 Diagnostic Trouble Code

C0753 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 C0753 diagnostic trouble code may include:

Faulty O2 Sensor
Lack of power
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
Hesitation upon acceleration

Possible Causes :

Some aftermarket accessories and performance modifications
A faulty oxygen sensor. This will set a code in itself, however, a faulty oxygen sensor does not automatically condemn the sensor. The code just means that the sensor signal was not within specifications. An air leak or any of the above will cause an erroneous signal. There is a multitude of O2 codes relating to O2 performance which gives a clue to the problematic area.
Fuel with a large percentage of sulfur will clog the DPF quickly

Repair Processes :

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. Look for missing ground strap or a rusty ground where the fuel tank is grounded to the frame. Check for damage to the wiring harness connector. If you find a related TSB, the information will often help in diagnosing the code in question as TSBs are crested from many thousands of repairs.

Process Tips

Diagnostic trouble code C0753 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 C0753.

Fortunately, C0753 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C0753 Trouble Code For Specific Cars

C0753 Alfa Romeo 175 ABS Power Relay Coil Short Circuit To Ground
C0753 Ginetta G27 Oil Temperature Sensor Circuit Short To Ground
C0753 Gsm Delta Passenger Sid, Side crash sensor mount fault
C0753 Renault Trafic HO2S Heater Control Circuit High (Bank 1 Sensor 2)
C0753 Innocenti Small SCP (J1850) Invalid or Missing Data for Interior Lamps
C0753 Jeep Cj2 Seat Driver Rear Down Switch Circuit Short To Battery
C0753 Mercedes E 63 Accelerometer Front Circuit Short To Battery