C2289 Diagnostic Trouble Code

C2289 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 C2289 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 :

A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
Faulty IMRC actuator relay (if equipped)
An air leak forward of the DPF will change the sensor readings resulting in the code

Repair Processes :

If the scan tool has that capability, and the scan tool can operate the IMRC valves, then the problem is either resolved and a simple code clearing is all that's left or a new PCM would be called for. 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.

Process Tips

Diagnostic trouble code C2289 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 C2289.

Fortunately, C2289 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C2289 Trouble Code For Specific Cars

C2289 Ginetta G10 Oil Level Switch Circuit Failure
C2289 Benz 16 Blower Switch Failure
C2289 Zaz Jalta SCP (J1850) Invalid or Missing Data for Vehicle Speed Control
C2289 Mazda Rx-01 5-6 Shift
C2289 Toyota Lite-ace Oil Temperature Sensor Circuit Open
C2289 Panhard Dyna Driver Power Window Down Switch Circuit Failure
C2289 Volkswagen T6 SCP (J1850) Invalid or Missing Data for Air Conditioning Clutch