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.
The cruise control switch can cause complete failure of the cruise control feature, but in a lucky scenario only partial functionality will be lost. This means that the cruise control may come on, but that it will not increase in speed automatically, or the cancel button does not work leading the driver to cancel cruise control with the foot brake. In some vehicles, the cruise control light may illuminate, or a warning message may be displayed due to lack of functionality.
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.
To diagnose the non-functional cruise control in a 1999 Hyundai Tiburon, begin with the simplest checks before moving on to more complex diagnostics. Start by inspecting the fuses associated with the cruise control system, specifically fuses 3, 13, and 17 in the Body Control Module (BCM), as blown fuses can easily disrupt functionality. Next, examine the wiring and connections to the cruise control components, ensuring that everything is secure and undamaged, particularly the wiring to the vacuum pump and the throttle cable. A common issue lies with the brake light switch, which can prevent the cruise control from engaging if faulty; thus, testing this switch is crucial. Additionally, check the vehicle speed sensor, as a malfunction here can also hinder cruise control operation. Inspect the cruise control switches on the steering wheel for any signs of damage or wear, using a multimeter to confirm their functionality. If these steps do not resolve the issue, consider the possibility of a failed control module, which may require advanced diagnostic tools to assess. Lastly, resetting the vehicle's computer by disconnecting the battery or using a scan tool can sometimes rectify the problem. By following this systematic approach, you can effectively diagnose and potentially repair the cruise control system in your Hyundai Tiburon.
When troubleshooting cruise control issues in a 1999 Hyundai Tiburon, it's essential to consider several common problems that may be affecting the system's functionality. One of the primary culprits is the brake light switch, which plays a crucial role in deactivating cruise control when the brake pedal is pressed. If this switch is faulty, it can prevent the cruise control from engaging altogether. Additionally, the buttons or switches located on the steering wheel can also be a source of trouble; wear and tear, spills, or cleaning products can damage these components, leading to electrical failures. Another critical area to inspect is the vehicle speed sensor and ABS sensors, as any malfunction here can trigger warning lights on the dashboard and disable the cruise control. Furthermore, the control module, which manages the cruise control system, may fail, rendering the entire system inoperable. It's also important to check for throttle actuation problems, ensuring that the throttle cable is properly connected to the throttle body. Damage to the clockspring within the steering column can disrupt electrical connections, affecting not only cruise control but also other systems like the horn. Lastly, for models utilizing a vacuum-controlled system, issues with the vacuum pump or vacuum line can lead to malfunctions. By systematically examining these components, you can effectively identify and address the root cause of your cruise control issues.
While the malfunctioning cruise control in a 1999 Hyundai Tiburon may not pose an immediate safety risk, it is still essential to address the issue promptly. Ignoring the symptoms could lead to more significant problems down the line, such as complications with the vehicle speed sensor or brake light switch, which are integral to the vehicle's overall functionality. Additionally, a malfunctioning cruise control system can detract from the driving experience, making long trips more exhausting. By diagnosing and repairing the cruise control, you not only restore a valuable convenience feature but also ensure that any underlying issues are identified and resolved before they escalate into more serious concerns. Therefore, while it may not be urgent, taking action sooner rather than later is advisable to maintain the health and performance of your vehicle.
See what others are asking about their Hyundai Tiburon. Get answers from RepairPal's community of auto experts and enthusiasts.
Read about related problems experienced by other Hyundai Tiburon drivers like you.
