P145C Diagnostic Trouble Code

P145C is a kind of OBD-II Diagnostic P-Powertrain 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 P145C diagnostic trouble code may include:

Blown fuse (if applicable)
Engine surge
Reduction in engine performance, especially at low RPM levels
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.
Dirty air cleaner element Damaged DPF

Repair Processes :

Look at the plug wires to make sure they are not burnt or laying on the exhaust. 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. Use the DVOM to test resistance and continuity on all system circuits if actuator and sensor resistance levels are in compliance with manufacturer's specifications.

Process Tips

Diagnostic trouble code P145C 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 P145C.

Fortunately, P145C is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P145C Trouble Code For Specific Cars

P145C Volkswagen New Beetle Right Rear Sensor Circuit Failure
P145C Maserati Merak Transmission Fluid Pressure Sensor/Switch F Circuit Intermittent
P145C Mercedes-benz 770 Air Bypass System
P145C Mazda Taiki A/C Evaporator Air Temperature Circuit High
P145C Suzuki Baleno Ii Memory 2 Switch Circuit Open
P145C Toyota Mrj Output Speed Sensor No Signal
P145C Subaru Sagres Liftgate Disarm Switch Circuit Short to Ground