How to Diagnose and Solve P1572 Speed Control Command Switch Out of Range High Issues

As a seasoned car expert, I understand the frustration that comes with encountering the P1572 Speed Control Command Switch Out of Range High issue. But don’t worry, I’m here to help you diagnose and solve this problem.

Understanding the P1572 Code

Firstly, it’s crucial to understand what the P1572 code means. This code is triggered when the Powertrain Control Module (PCM) detects a malfunction in the speed control command switch circuit. This could be due to a variety of reasons, including a faulty speed control switch, wiring issues, or a malfunctioning PCM.

Signs of P1572 Code

The most common symptom of the P1572 code is the illumination of the Check Engine Light. You may also notice that your vehicle’s cruise control system is not functioning correctly.

Diagnosing the P1572 Code

Step 1: Visual Inspection

Start by visually inspecting the speed control switch and its wiring. Look for any signs of damage, such as frayed wires or a broken switch.

Step 2: Use a Diagnostic Tool

Next, use a diagnostic tool to read the trouble codes from the PCM. This will confirm if the P1572 code is present and may also reveal any other related issues.

Step 3: Test the Speed Control Switch

You can test the speed control switch using a multimeter. If the switch is faulty, it will need to be replaced.

Solving the P1572 Code

Step 1: Replace the Speed Control Switch

If the speed control switch is faulty, replace it with a new one. Ensure that the new switch is compatible with your vehicle’s make and model.

Step 2: Repair or Replace Damaged Wiring

If you found any damaged wiring during your visual inspection, it will need to be repaired or replaced.

Step 3: Reset the PCM

After making the necessary repairs, reset the PCM to clear the P1572 code. You can do this by disconnecting the battery for a few minutes, then reconnecting it.

Step 4: Test Drive

Finally, take your vehicle for a test drive to ensure that the issue has been resolved. If the Check Engine Light does not come back on and the cruise control system is functioning correctly, you have successfully solved the P1572 issue.

Conclusion

Dealing with the P1572 Speed Control Command Switch Out of Range High issue can be a daunting task, but with the right knowledge and tools, you can diagnose and solve this problem yourself. Remember, it’s always important to address any issues as soon as they arise to prevent further damage to your vehicle.

FAQs

1. What causes the P1572 code?

The P1572 code is usually caused by a faulty speed control switch, damaged wiring, or a malfunctioning PCM.

2. Can I drive my car with the P1572 code?

While it may be possible to drive with the P1572 code, it’s not recommended. The cruise control system may not function correctly, which could lead to safety issues.

3. How can I prevent the P1572 code?

Regular maintenance and inspections can help prevent the P1572 code. Always ensure that your vehicle’s wiring is in good condition and that the speed control switch is functioning correctly.