C1059 Diagnostic Trouble Code

C1059 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 C1059 diagnostic trouble code may include:

Lack of power
Faulty O2 Sensor
Poor acceleration
Reduction in engine performance, especially at low RPM levels

Possible Causes :

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.
Some aftermarket accessories and performance modifications
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 :

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. You might continue by connecting the scanner to the vehicle diagnostic connector and retrieving all stored codes and freeze frame data. Look at the plug wires to make sure they are not burnt or laying on the exhaust.

Process Tips

Diagnostic trouble code C1059 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 C1059.

Fortunately, C1059 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C1059 Trouble Code For Specific Cars

C1059 Geely Maple O2 Sensor Signals Swapped Bank 1 Sensor 2/ Bank 2 Sensor 2
C1059 Toyota Mr-s Output Speed Sensor Range/Performance
C1059 Ferrari F50 Internal ECM Malfunction
C1059 Cadillac Bls Data Mismatch #2 (receive data does not match what was expected)
C1059 Isuzu New Bellel
C1059 Facel Vega Facellia Injector Circuit / IDM Codes Not Updated
C1059 Jaguar 240 Seat Driver Backward Circuit Short To Battery