2000 Volvo V70 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2000 Volvo V70 and How to Fix Them

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Reviewed by
Andrew Hajjar
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Sensor
0%
25% chance it's the
Control Module
0%
25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 2000 Volvo V70 cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.
  • Sensor: A faulty or malfunctioning sensor can lead to incorrect readings, causing issues with engine performance or other systems relying on accurate data.
  • Control Module: A faulty control module can lead to erratic vehicle behavior or failure of various electronic systems due to improper signal processing.
  • Throttle: A faulty throttle body or a defective accelerator pedal position sensor may be causing inconsistent throttle response.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2000 Volvo V70 cruise control isn't working?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

When the throttle position sensor fails, the engine's computer tends to overcompensate with fuel, leading black exhaust coming from the tailpipe. There is a strong possibility of engine misfires, and the check engine light will come on.

Throttle position sensors can also develop "dead spots," or certain places along the throttle curve where it doesn't get a reading. When this happens, the above symptoms can occur but then stop when you further press or let off the gas pedal.

In the event that a wheel speed sensor fails, the ABS, traction control system (TCS) and manufacturer specific stability control system lights will illuminate, informing the driver that the systems are disabled. The vehicle will be more prone to tire slip, and normal driving patterns may need to be adjusted to correct for the loss of computer control. On older vehicle's, the speedometer can be affected, causing illumination of the check engine light as well.

What are the initial diagnostic steps to troubleshoot the non-functional cruise control in a 2000 Volvo V70?

To effectively troubleshoot the non-functional cruise control in your 2000 Volvo V70, start with a systematic diagnostic approach that prioritizes simpler fixes before delving into more complex issues. Begin by checking the brake switch, as a malfunction here can inhibit cruise control operation. Next, inspect the vacuum hoses for any signs of damage or blockages, ensuring that all connections are secure. Following this, assess the electrical system by verifying that the cruise control light activates when the steering wheel button is pressed; if not, there may be an underlying electrical fault. It's also crucial to check the speed sensor, as it relays the vehicle's speed to the cruise control module, and any malfunction here can disrupt functionality. While there isn't a dedicated fuse for the cruise control, examining the fuse panel for any blown fuses is advisable, as this could indirectly affect the system. If issues persist, consider rebooting the system by disconnecting the battery to reset the microprocessor. Finally, if you have access to a diagnostic tool, reading the error codes can provide valuable insights into specific problems affecting the cruise control system. By following this structured approach, you can efficiently identify and resolve the issues with your vehicle's cruise control.

What are the common problems that could cause the cruise control to stop working in a 2000 Volvo V70?

When troubleshooting the cruise control system in a 2000 Volvo V70, it's essential to understand the common problems that may lead to its failure. One of the primary culprits is a faulty brake light switch, which can inadvertently disable the cruise control if it fails to properly signal when the brake pedal is released. Additionally, inspect the vacuum hoses and linkages, as any damage or looseness can disrupt the connection between the gas pedal and the cruise control system. Another critical component to check is the cruise control module or relay; if these parts malfunction, they can prevent the system from engaging altogether. Speed sensor issues are also significant, as a malfunctioning sensor can fail to relay the vehicle's speed to the cruise control module, rendering it inoperative. Furthermore, electrical faults, such as a defective cruise control switch or wiring problems, can lead to system malfunctions. In some cases, software calibration issues may arise, particularly in older models, affecting the throttle positioning sensor and overall functionality. Lastly, be aware of any recall-related issues that may pertain to throttle body or software calibration, as these can also impact cruise control performance. By systematically addressing these potential problems, you can effectively diagnose and resolve issues with your Volvo V70's cruise control system.

How urgent is it to repair the non-functioning cruise control in a 2000 Volvo V70?

When contemplating the urgency of repairing a non-functioning cruise control in a 2000 Volvo V70, it's essential to recognize that while the system may not be critical for immediate driving safety, its malfunction can signal underlying issues that warrant attention. The cruise control system, while convenient for reducing driver fatigue, may be linked to other vital components such as the throttle position sensor or brake pedal position sensor. If these sensors are faulty, they could not only disrupt cruise control functionality but also compromise overall vehicle performance and safety. Moreover, neglecting this issue could lead to more significant problems down the line, especially if the malfunction is related to known defects or recalls, such as the throttle body issue associated with this model. Addressing these concerns promptly can prevent the vehicle from entering limp home mode, which can severely limit driving capabilities. Therefore, while immediate repair may not be critical, it is advisable to diagnose and resolve the issue soon to maintain the vehicle's reliability and ensure a safe driving experience.

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2000 Volvo V70 Cruise Control Not Working: Causes & Fixes