When you own a Dodge vehicle, you may experience a P1628 code issue, which can be overwhelming and lead to a loss of control of your car. This code is triggered when the Powertrain Control Module (PCM) detects a malfunction or inconsistency in the 5-Volt Sensor Supply sources. This code can be caused by a wide range of issues, ranging from a shorted to ground 5-Volt Supply circuit to a faulty MAP Sensor, Camshaft Position Sensor, Camshaft Position Sensor 2, Accelerator Pedal Position (APP) Sensor, or even a malfunctioning PCM. To identify the source of the issue, it is important to diagnose the cause and provide the appropriate solution.
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Causes and Solutions of Dodge P1628 Code
| Cause | Solution |
|---|---|
| 5-Volt Supply Circuit Intermittently Shorted to Ground | Inspect 5-Volt Supply Circuit |
| 5-Volt Supply Circuit Intermittently Shorted to Voltage | Replace the MAP Sensor |
| 5-Volt Supply Circuit Intermittently Open | Replace the Camshaft Position Sensor |
| Camshaft Position Sensor 2 | Replace the Camshaft Position Sensor 2 |
| Accelerator Pedal Position (APP) Sensor | Replace the Accelerator Pedal Position (APP) Sensor |
| Powertrain Control Module (PCM) | Replace the Powertrain Control Module (PCM) |
Inspect 5-Volt Supply Circuit
The first step in diagnosing the P1628 code is to inspect the 5-Volt Supply Circuit to identify intermittently shorted-to-ground issues. This inspection should be carried out with a multimeter to check for shorts and openings in the circuit. It is also important to check for any loose or damaged wires, corroded connectors, or any other physical damage to the circuit that may be causing the issue.
Replace the MAP Sensor
If the 5-volt Supply Circuit inspection reveals an intermittently shorted voltage issue, then the MAP Sensor should be replaced. This is because the MAP Sensor may be faulty, causing the 5-Volt Supply Circuit to be interrupted. It is important to ensure the new MAP Sensor is installed and functioning correctly.
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Replace the Camshaft Position Sensor
If the 5-volt Supply Circuit inspection reveals an intermittently open issue, the Camshaft Position Sensor should be replaced. This is because the Camshaft Position Sensor may be faulty, causing the 5-Volt Supply Circuit to be interrupted. Ensuring the new Camshaft Position Sensor is installed and functioning correctly is important.
Replace the Camshaft Position Sensor 2
If the inspection reveals the faulty Camshaft Position Sensor 2, it should be replaced. This is because the Camshaft Position Sensor 2 may be incorrect, causing the 5-Volt Supply Circuit to be interrupted. Ensuring the new Camshaft Position Sensor 2 is installed and functioning correctly is important.
Replace the Accelerator Pedal Position (APP) Sensor
If the inspection reveals a faulty Accelerator Pedal Position (APP) Sensor, it should be replaced. This is because the Accelerator Pedal Position (APP) Sensor may be incorrect, causing the 5-volt Supply Circuit to be interrupted. It is important to ensure that the new Accelerator Pedal Position (APP) Sensor is installed and functioning correctly.
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Replace the Powertrain Control Module (PCM)
If the inspection reveals that the Powertrain Control Module (PCM) is faulty, it should be replaced. This is because the PCM may be flawed, causing the 5-volt Supply Circuit to be interrupted. It is important to ensure the new PCM is installed and functioning properly.
Conclusion: Solving the Dodge P1628 Code Issue
To conclude, the P1628 code is a common issue owners of Dodge vehicles may experience. The cause of the code can range from a shorted to ground 5-Volt Supply Circuit to a faulty MAP Sensor, Camshaft Position Sensor, Camshaft Position Sensor 2, Accelerator Pedal Position (APP) Sensor, or even a malfunctioning Powertrain Control Module (PCM). To identify the source of the issue, it is important to diagnose the cause and provide the appropriate solution. Following the solutions in the article, you should be able to troubleshoot and solve the Dodge P1628 Code issue effectively.