P1564 Nissan Code: How To Get Your Cruise Control Back On Track

Imagine you’re driving your Nissan when suddenly the “Check Engine” light comes on. You decide to plug an OBD2 scanner in to know where the problem is, and you then discover that the culprit behind the warning is the P1564 Nissan code, linked specifically to the Advanced Speed Control Device (ASCD) steering switch.

In this article, we’ll focus on the P1564 code and explain it in simple terms. By the end, you’ll better understand the issue and what you can do to keep your car running smoothly. So, let’s dive in and unlock the mystery of the P1564 Nissan code!

P1564 Nissan: A Quick Overview

Below is a summary of the P1564 Nissan code. Check it out.

Definition: ASCD Steering Switch Circuit Malfunction
How Serious Is It?: Medium
DIY Skill Level: Intermediate
Continue To Drive?: Yes
Estimated Repair Cost: $20 – $1500

What Does The P1564 Nissan Code Mean?

P1564 is a diagnostic trouble code (DTC) that pertains to Nissan’s ASCD system. This code is triggered when the Engine Control Module (ECM) detects irregularities in the ASCD steering switch’s electrical signals. This occurs when an excessively high voltage signal is sent from the ASCD steering switch to the ECM, the input signal from the switch is out of the specified range, or the switch is stuck in the ON position.

Let’s learn about the ASCD system. The ASCD steering switch consists of multiple buttons, each associated with specific cruise control functions like setting the desired speed, resuming previous speed, or canceling the system. The switch’s buttons have unique electrical resistance values, and when a button is pressed, the ECM reads the corresponding voltage variations to determine the intended function. So when the voltage is abnormal in the ASCD’s electrical signal, the P1564 is set.

nissan altima — *The ASCD switches are located on the steering wheel in Nissan vehicles.*
*(Credit: usa.nissannews.com)*

How Serious Is The P1564 Nissan Code?

The P1564 Nissan code indicates a moderate level of severity. While it may not immediately impact drivability, it should not be ignored. If the ASCD steering switch malfunctions, the cruise control system may become inoperative, affecting driving comfort on long trips. In such cases, you can continue to drive the vehicle with caution. However, it’s essential to have the issue diagnosed and repaired promptly to restore the system’s functionality.

What Are The Symptoms?

There are some symptoms if P1260 is set on your Ford:

Malfunction Indicator Lamp (MIL) illuminated
Loss of cruise control capabilities

What Are The Potential Causes?

Causes of the P1564 Nissan code may include:

Damaged wiring and connectors
Bad ASCD steering switch
Faulty ECM

How To Diagnose And Fix the P1564 Nissan Code?

Dealing with the P1564 Nissan code related to the ASCD steering switch can seem daunting, but you can resolve it step by step. Here’s a simple guide to help you fix the issue:

Essential Tools And Parts

Diagnostic scanner
ASCD switch assembly
Multimeter
Basic tools (screwdrivers, pliers, etc.)

Fixing Nissan P1564: Step-by-step Procedure

Step 1: Visual Inspection

Carefully examine the ASCD steering switch, like cancel sw, cruise lamp sw, or resume/acc sw, etc., and its wiring for any visible damage, loose connections, or signs of wear. Look for frayed wires, corroded connectors, or any other obvious issues that could affect the switch’s functionality.

Step 2: Check Electrical Resistance

Use a multimeter set to the resistance (ohms) setting. Measure the electrical resistance of each button on the ASCD steering switch. Compare the readings you get with the manufacturer’s specifications for each button. Significant deviations from the expected values could indicate a faulty switch.

Step 3: Test Voltage Signals

Set the multimeter to the voltage setting. Here are the expected voltage values you should get when you measure the G/Y wire at the ASCD steering switch with the ignition switch turned ‘ON’:

When the ASCD steering switch is “OFF”, you should see around 4.0V.
If the CRUISE switch is “ON”, the voltage should be approximately 0V.
For the CANCEL switch being “ON”, the voltage should be around 1V.
When the COAST/SET switch is “ON”, the voltage should be roughly 2V.
Finally, if the ACCEL/RES switch is “ON”, you should read around 3V.

Step 4: Repair Or Replace

If all the values match the specifications above, then the switch is likely the problem. However, if any of the values are not within the expected ranges, the wiring might have an issue. It’s vital to get the wiring issues addressed in this case.

Step 5: Clear Codes

Using the diagnostic scanner, clear the P1564 code from the ECM. This step is essential after making repairs or replacements. Clearing the code will reset the system and allow you to check if the issue has been resolved.

Step 6: Functional Test

Take your vehicle for a test drive in a safe area. Engage the cruise control functions associated with the ASCD steering switch. Monitor the system’s performance and watch for any warning lights. Make sure the cruise control operates smoothly without any unexpected behavior.

This video is about how to fix P1564 code on Nissan Altima 2003 by Online Auto Repair Videos.

Estimated Cost For Fixing P1564 On Nissan Vehicles

Safety should be a priority when dealing with vehicle repairs. If you find that the necessary skills and expertise required for these repairs are beyond your DIY abilities, it’s strongly recommended to seek assistance from a qualified mechanic. They have the experience and knowledge to ensure the repairs are done correctly and safely.

Below is a rough estimated cost breakdown for the mentioned repairs. Please keep in mind that these are approximate figures and actual costs can vary depending on various factors.

Repair Task	Estimated Cost
Wiring and Connectors Repair	$50 to $200
ASCD Steering Switch Replacement	$100 to $200
ECM Replacement	$500 to $1500

P1564 Nissan Infographic

Conclusion

In conclusion, comprehending the P1564 Nissan code is crucial. Understanding the code’s implications empowers drivers to make informed decisions about their vehicle’s health. Whether you DIY or get pro help, grasping the code’s meaning means better car care. Decoding and tackling the P1564 code gets your car back on track and shows you’re a driver in the know, taking care of your ride.

If you found this article helpful in demystifying the P1564 Nissan code and grasping the ASCD steering switch, share it with others facing similar challenges. Have questions, insights, or experiences to share? Drop them in the comments below. Let’s start a discussion that enriches our driving journeys!

References Sources

Nissan_Pathfinder_LE_P1564, PRODEMAND
Nissan Altima 2007-2012 Service Manual: Automatic speed control device (ASCD), Nissan Altima