When your vehicle is displaying the Dodge Code P0203, it can be an indication of an issue with the Fuel Injector 3 Circuit/Open. This code is generated when the Powertrain Control Module (PCM) detects an open or high resistance in the control circuit for Fuel Injector 3. There are various causes that can lead to this code being generated, such as a faulty fuel injector, an open or high resistance in the ASD Relay Output circuit, a shorted to ground in the Fuel Injector 3 Control Circuit, or a faulty PCM. To solve this issue, it is important to identify the root cause of the code and take the necessary steps to fix it.
Common Causes and Solutions for Dodge Code P0203
| Cause | Solution |
|---|---|
| Fuel Injector 3 Connector or Wiring | Replace the faulty wiring or connector. |
| ASD Relay Output Circuit Open or High Resistance | Check and repair any damaged wiring in the ASD Relay Output Circuit. |
| Fuel Injector 3 Control Circuit Shorted to Ground | Check and repair any damaged wiring in the Fuel Injector 3 Control Circuit. |
| Fuel Injector 3 Control Circuit Open or High Resistance | Replace the faulty wiring or connector. |
| Fuel Injector 3 | Replace the faulty fuel injector. |
| Powertrain Control Module (PCM) | Replace the faulty PCM. |
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