1997 Chevrolet K1500 Suburban Cruise Control Isn't Working

Fixing Cruise Control Malfunctions in 1997 Chevrolet K1500 Suburban

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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 1997 Chevrolet K1500 Suburban 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 1997 Chevrolet K1500 Suburban 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.

When the vehicle speed sensor fails or the wiring harness prevents signal transmission, the speedometer is the first thing that will stop functioning properly. This can be an intermittent issue where the speedometer only works occasionally, the speedometer may cease all function, or the speedometer may read erratically or incorrectly. Also, the traction control and anti lock brake warning lights specific to each vehicle may be illuminated, depending on the design of those systems. You may notice the vehicle hesitate to accelerate, cruise control will not function properly, and the vehicle may not shift properly through all of the gears.

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.

A faulty cruise control module will simply result in deactivation of cruise control settings. This is because a detected error in the cruise control system could lead to hazardous driving conditions, so the module will be disabled, and the cruise control system warning light will be displayed. This will be a different message depending on make and model, and a warning light or message may be displayed on the driver instrument cluster.

What are the initial diagnostic steps to troubleshoot the non-functional cruise control in a 1997 Chevrolet K1500 Suburban?

When troubleshooting the non-functional cruise control in a 1997 Chevrolet K1500 Suburban, it's essential to adopt a systematic diagnostic approach. Begin by checking the fuse associated with the cruise control system, as a blown fuse is a straightforward issue that can easily be resolved. Next, inspect the wiring for any visible damage or loose connections, since faulty wiring can disrupt the system's operation. After ensuring the wiring is intact, test the cruise control switch to confirm it is functioning properly, as a malfunctioning switch is a common culprit in cruise control failures. Additionally, examine the vacuum lines, which are crucial in older vehicles; any leaks or damage here can significantly impact performance. If these initial checks do not reveal the problem, utilize a diagnostic scanner to look for error codes that may indicate specific issues within the system. Finally, inspect the cruise control module for signs of damage or corrosion, as a defective module can also lead to cruise control malfunctions. By following this structured approach, you can effectively diagnose and potentially resolve the cruise control issues in your Suburban.

What are the common problems that could cause the cruise control to stop working in a 1997 Chevrolet K1500 Suburban?

When troubleshooting cruise control issues in a 1997 Chevrolet K1500 Suburban, it's essential to consider several common problems that could be at play. One of the primary culprits is the control module, which can fail and disrupt the entire system. Additionally, sensors and switches related to the cruise control can also malfunction, leading to operational failures. Throttle actuation problems are another frequent issue, as they can prevent the cruise control from maintaining speed. It's also important to inspect the brake and clutch switches, as these components are designed to deactivate the cruise control when engaged; if they are faulty, they may inadvertently disable the system. Broken wires from the stem switch can further complicate matters, potentially causing intermittent or complete loss of functionality. A blown fuse or a defective brake pedal switch should also be checked, as these can easily lead to a non-working cruise control system. For a more precise diagnosis, using a scan gauge to check for error codes can help pinpoint the specific issue, making it easier to address the problem effectively. By systematically examining these components, DIYers can identify and resolve the underlying issues affecting their cruise control system.

How urgent is it to address the non-functioning cruise control in a 1997 Chevrolet K1500 Suburban?

When considering the urgency of fixing the non-functioning cruise control in a 1997 Chevrolet K1500 Suburban, it is crucial to recognize the potential safety risks and inconveniences that can arise from neglecting this issue. A malfunctioning cruise control system can lead to increased driver fatigue, as maintaining a constant speed manually can be tiring, especially on long journeys. This fatigue can distract the driver, heightening the risk of accidents. Additionally, the convenience that cruise control offers—allowing drivers to relax their foot during extended drives—cannot be overlooked; without it, driving can become more strenuous and less enjoyable. Furthermore, having a professional mechanic conduct a diagnostic check is advisable to pinpoint the underlying cause of the malfunction, ensuring that any necessary repairs are made promptly. Addressing this issue not only enhances safety and comfort but also helps maintain the vehicle's resale value, as potential buyers are often wary of unresolved mechanical problems. Therefore, while it may not seem like an immediate emergency, timely attention to a non-functioning cruise control is essential for the overall well-being of both the driver and the vehicle.

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