Using an automatic speed control device (ASCD), a driver can maintain a
NOTE:
- The CANCEL button is depressed.
- At the ASCD steering switch, more than two switches are engaged simultaneously.
- Pedal is pressed to the brake
- N, P, and R positions are now on the selector lever.
- The vehicle’s speed dropped to 13 km/h (8 MPH) below the predetermined pace.
- The TCS system is run
- The temperature of the engine coolant is marginally greater than the operational
is completed, the vehicle’s speed will return to the previous setting. resuming the vehicle set
- Release of the brake pedal
- There is a position other than P or N for the selector lever.
- greater than 40 km/h (25 MPH) and less than 144 km/h for the vehicle
ASC Diffuser (Most Common Fix)
The numerous buttons on your steering wheel that control your cruise control are known as the ASCD switch. Different voltage levels are being delivered to the ECM of your X-Trail when you press them. This signal instructs the cruise control to activate, slow down, pick up speed, or stop.
The ECM will turn off the cruise control and issue a P1564 code if the incorrect voltage is discovered.
The switch itself will probably need to be replaced, but you should be cautious and check the steering wheel’s electrical circuit first. A multimeter is required to test the switch directly. Here is a fantastic video of a man identifying P1564. In this instance, it turns out to be the switch itself. It’s really educational.
The voltage needs to be checked at three pressure points:
- between the ECM and the spring switch
- Between the steering wheel harness and the ASCD switch (needs removing the airbag assembly; if you don’t know what you’re doing, it can activate and pop you).
- at the actual ASCD switch. Verify the voltages coming in and going out. Look at the video link a few lines up. It is quite exhaustive.
Change to ASCD (Most Common Fix).
The cruise control settings are controlled by a set of buttons on your steering wheel called the ASCD switch. When you press them, different voltage levels are sent to your Frontier’s ECM. This signal tells the cruise control to switch on, off, reduce, or increase speed.
Incorrect voltage will cause the ECM to disable the cruise control and trigger P1564.
It is almost clear that the switch itself needs to be replaced, but you should first check the wire harness that connects to the steering wheel. Testing the switch requires a multimeter. In this video, a man diagnoses P1564. It turns out to be the switch in this instance. It has a ton of insightful data.