C2706 Diagnostic Trouble Code

C2706 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 C2706 diagnostic trouble code may include:

Corroded or damaged connector
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
Lack of power
Rich or lean exhaust

Possible Causes :

The Mass Airflow sensor will also cause this problem. Mass Airflow circuit malfunction.
Fuel with a large percentage of sulfur will clog the DPF quickly
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 :

Find out what kind of system you have and verify that voltage to the fuel level sensor is present at the fuel pump wiring harness. 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.

Process Tips

Diagnostic trouble code C2706 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 C2706.

Fortunately, C2706 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C2706 Trouble Code For Specific Cars

C2706 Mazda Rx8 A Camshaft Position Actuator Circuit (Bank 2)
C2706 Case Jic Door Ajar Lamp Circuit Failure
C2706 Renault Espider Gear Shift Reverse Actuator Circuit Low
C2706 Alta 1100 Air Bag Passenger Pressure Switch Circuit Failure
C2706 Pontiac Star Chief Flash To Pass Switch Circuit Short To Ground
C2706 Mitsubishi Concept Audio Single-Disc CD Player Internal Fault
C2706 Chevrolet Trailblazer Emergency Power Off System Faulted