C0432 Diagnostic Trouble Code

C0432 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 C0432 diagnostic trouble code may include:

Lack of power
Faulty O2 Sensor
Poor acceleration
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

Possible Causes :

An air leak forward of the DPF will change the sensor readings resulting in the code
Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks.
Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.

Repair Processes :

If all testing has passed so far yet you still have the same code, check your scan tool and see if it can open and close the IMRC valve. 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. Look at the plug wires to make sure they are not burnt or laying on the exhaust.

Process Tips

Diagnostic trouble code C0432 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 C0432.

Fortunately, C0432 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C0432 Trouble Code For Specific Cars

C0432 Talbot Alpine Mirror Passenger Horizontal Feedback Potentiometer Circuit Short to Ground
C0432 Bugatti Type 73 Cylinder 2 Injector Circuit Low
C0432 Peerless Sixteen Drivers Seat Belt Buckle Switch Circuit Short to Ground
C0432 Abarth 124 Spider 1-4 Upshift (Skip Shift) Solenoid Control Circuit Malfunction
C0432 Daf 44 Gear Lever X - Y Position Sensor Circuit
C0432 Mercedes C 63 ABS Inlet Valve Coil Rear Circuit Failure
C0432 Dagmar 6 Gear Shift Forward Actuator Circuit / Open [forward motion, odd gears, 1,3,5]