Auto >> AutoSPT >  >> Auto Repair

P1684 for dodge intriped 2003 how to fix?

P1684 - Intake Manifold Runner Control Circuit Open

For most vehicles:

Possible causes:

- Wiring issue to the intake manifold runner control valve

- Intake manifold runner control valve failure

Here are some steps you can take to fix the issue:

1. Check the wiring.

- Inspect the wiring harness and connector to the intake manifold runner control valve for any damage or corrosion.

- Make sure the wiring harness is properly connected to the valve.

- If the connector is damaged, replace it.

2. Check the intake manifold runner control valve.

- Use a multimeter to test the valve.

- Disconnect the valve from the harness and check for continuity between the terminals.

- If the valve is open, it will have continuity.

- If the valve is closed, it will not have continuity.

- Replace the valve if it is defective.

3. Reset the PCM.

- After replacing the valve, reset the PCM to clear the code.

- This can be done by disconnecting the battery for a few minutes or by using a scan tool.