P1206 AUDI, JAGUAR, VOLKSWAGEN: FUEL INJECTOR CIRCUIT CYLINDER 6 ELECTRICAL MALFUNCTION
P1206 ISUZU: FUEL INJECTOR CIRCUIT CYLINDER #6 OPEN/SHORT CIRCUIT
POST UPDATED IN January, 2023
P1206 Code failures by brands
Description of DTC code P1206
Fuel injectors play an important role in the proper functioning of the fuel system of automobiles. The function of these devices is to deliver the above-mentioned compound at the most indicated moment, ensuring an optimal combustion process. An atomizer is installed in the injectors, which is responsible for a uniform distribution of the fuel, and thanks to this design the combustion has higher levels of efficiency.
The ECM (Engine Control Module) manages the performance of the injectors. This controller determines the most appropriate moment to allow fuel delivery and, based on this, activates the injectors. Once the injectors are enabled, the amount of fuel to be delivered to the combustion chamber is regulated and the process is monitored to achieve the correct amount.
The diagnostic code P1206 OBDII, on certain vehicle models, is related to a failure in one of the fuel injectors (cylinder 6 injector). The condition refers to an electrical problem causing a short or open circuit. In order to know specifically how it is applied by your vehicle manufacturer, please refer to your vehicle’s information source.
Symptoms of fault code P1206
- Check Engine light illuminated.
- Difficulties during engine start.
- Irregular engine performance.
- Problems with acceleration.
Causes of OBD2 P1206
P1206 OBD2 fault code is set for one of the following reasons:
- Cylinder 6 injector circuit wires could have been damaged.
- The injector connections for cylinder number 6 may have deficiencies that cause the short or open circuit.
- Fuel injector 6 may be defective.
Possible solutions of the DTC code P1206
The steps to follow to troubleshoot the DTC P1206 OBDII code are as follows:
- Consult the Technical Service Bulletins.
- Check the wires related to the fuel injector for cylinder 6 for common deficiencies such as burns, wear, or corrosion. If such damage is found, proceed with necessary repairs.
- Perform electrical checks of the cylinder 6 injector circuit and verify that the injector circuit voltages are adequate for proper operation. If you discover conditions that cause a short/open circuit, make corrections.
- Inspect the injector on cylinder 6 and check it for obstructions or obvious damage. If these checks reveal any deficiencies, make the appropriate adjustments or changes.
