C0924 Diagnostic Trouble Code

C0924 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 C0924 diagnostic trouble code may include:

The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
Faulty PCM
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
Diminished fuel efficiency

Possible Causes :

The Mass Airflow sensor is a hot wire that senses the volume of air entering the intake manifold. The computer uses this information to control fuel mixture.
Defective ECU strategies or components will prevent proper regeneration
An air leak forward of the DPF will change the sensor readings resulting in the code

Repair Processes :

With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground. Once located, visually inspect the connectors and wiring. Look for rubbing, scraping, bare wires, worn spots or melted plastic connectors.

Process Tips

Diagnostic trouble code C0924 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 C0924.

Fortunately, C0924 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C0924 Trouble Code For Specific Cars

C0924 Toyota 2000 Neutral Switch Circuit Malfunction
C0924 Toyota Mr2 Spyder Output Speed Sensor Intermittent
C0924 Citroen Big Fifteen Front Doppler Sensor Circuit Failure
C0924 Mercedes Cla 200 ABS Inlet Valve Coil RR Circuit Short To Ground
C0924 Imperial Le Baron SCP (J1850) Invalid or Missing Data for Experimental #1
C0924 Suzuki Sx4 I Mirror Driver Switch Assembly Circuit Short To Battery
C0924 Simca 6 Intake Valve Control Solenoid Circuit Range/Performance (Bank 1)