What does a yellow TC light mean?

1 Answers
SanPhoebe
07/29/25 6:59pm
When the yellow TC light in a car is illuminated, it indicates a malfunction in the traction control system. Below is relevant information about the TC light: Meaning of the TC light: The TC light stands for the Traction Control system. When the ABS (Anti-lock Braking System) detects that certain wheels are slipping, it applies braking to those wheels to prevent loss of traction on the slipping wheels. Causes for the TC light to illuminate: Faulty solenoid valve; Dirty engine oil clogging the solenoid valve filter; Wear and tear on the actuator gear and impeller leading to oil pressure leakage and triggering the warning; Dirty throttle body with an opening reaching 20%, causing the engine computer to mistakenly diagnose a TC fault.
Was this review help?
13
2
Share
More Forum Discussions

Will You Get Points Deducted for Driving with the Trunk Open?

Driving with the car trunk unclosed and in an open state is considered a traffic violation. Typically, electronic surveillance cameras do not capture this type of violation. However, if spotted by traffic police, the vehicle may be stopped, and a ticket issued for violating road traffic safety laws and regulations regarding road usage. Depending on the situation, the driver might only receive a warning without any fine or point deduction, or face a penalty ranging from 20 to 200 yuan. The specific circumstances are as follows: 1. If the trunk is not properly closed and the traffic police find that it obstructs the driver's view or interferes with the normal passage of other vehicles and pedestrians on the road, the driver may be fined 200 yuan and have 3 points deducted. This is because such behavior poses a significant risk of traffic accidents and safety hazards, warranting stricter penalties to deter recurrence. 2. If the trunk is left open to carry special cargo that obscures the vehicle's license plate, the driver may be caught by electronic surveillance or traffic police. In this case, the violation could be treated as intentional concealment of the license plate, resulting in a fine of 20 to 200 yuan and a 12-point deduction. However, the final decision depends on the judgment of the local traffic police department.
1
1
Share

Can You Still Drive If the Coolant Level Is Below MIN?

If the coolant level is slightly below MIN, it is necessary to replenish the coolant promptly. Continuing to drive may affect the radiator's cooling efficiency, preventing it from achieving the desired cooling effect. This can disrupt the normal circulation of coolant, leading to overheating and, in severe cases, engine damage. How to Determine If Coolant Is Low: Check the coolant warning light on the dashboard. If it is illuminated, it is likely due to low coolant, though it could also be caused by excessively high cylinder temperatures. Inspect the coolant reservoir. If the fluid level is below the minimum mark (MIN), do not continue driving. Add coolant as soon as possible. Check the water level markings on the coolant overflow tank. The normal coolant level should be between the maximum and minimum marks. If the coolant is below the minimum mark, it indicates a deficiency. Coolant Replacement Interval: Vehicle coolant generally needs to be replaced every 2 years or 40,000 kilometers. This is only a reference interval. For commercial vehicles with higher mileage, the replacement interval should be shorter. Since driving conditions vary for each vehicle, the replacement schedule should be based on actual usage. Regularly check the coolant condition—if it is low, replenish it promptly. If suspended particles, sediment, discoloration, or deterioration are observed, replace the coolant immediately and flush the system.
8
3
Share

What are the reasons for all 4 spark plugs not firing?

The reasons for all 4 spark plugs not firing include electrode damage, too low insulation resistance value of spark plugs, and improper gap adjustment between spark plugs. Electrode damage: Prolonged electrical erosion from sparks or chemical corrosion from combustion gases can cause spark plug electrodes to break and detach, preventing them from firing. Simply replace the spark plugs promptly. Too low insulation resistance value of spark plugs. This phenomenon weakens the ignition voltage applied to the spark gap, resulting in weak sparks or even complete loss of ignition function. Simply adjust the spark plug resistance value promptly. Improper spark plug gap adjustment: If the gap is too small, it not only limits the contact area between the spark and the air-fuel mixture but also suppresses the growth of the flame kernel due to the "flame quenching" effect of the electrodes. Even if there is sparking, the spark is weak, making it difficult to ignite the mixture. If the gap is too large, the ignition system may not provide sufficient voltage to create a spark between the electrodes. Visit a 4S shop promptly to adjust the gap. Spark plug replacement interval: Under normal maintenance conditions, replace them after driving 40,000 to 60,000 kilometers. However, this may vary depending on the brand and engine, so it is recommended to follow the user manual. You can refer to the following standards for maintenance replacement: platinum spark plugs should be replaced at 40,000 kilometers, ordinary nickel alloy spark plugs at 20,000 kilometers, and iridium spark plugs at 60,000 to 80,000 kilometers.
18
3
Share

What is the difference between a faulty clutch slave cylinder and a faulty clutch master cylinder?

The difference between a faulty clutch slave cylinder and a faulty clutch master cylinder: 1. When the clutch master cylinder is damaged, the pedal feels soft and powerless when pressed, and the slave cylinder does not move. When the slave cylinder is damaged, the clutch pedal may feel hard or soft, but the slave cylinder does not move, or the stroke is too short to disengage the clutch (assuming the clutch clearance is adjusted normally). 2. The function of the clutch master cylinder is to collect the pedal stroke information and use the booster to separate the clutch. The function of the clutch slave cylinder in the system is to cut off the power connection between the engine and the transmission when the driver presses the clutch pedal. When the clutch pedal is released, the power is reconnected. Additional information: The clutch master cylinder is the part connected to the clutch pedal and linked to the clutch booster via a hydraulic line.
14
3
Share

Where to Get the Novice Driver Sticker for Cars?

Here are the methods to obtain the novice driver sticker: 1. First-time applicants for a motor vehicle driver's license can receive the novice driver sticker for free when collecting their license from the traffic management department. 2. Licensed novice drivers can also obtain the sticker for free at any branch of the vehicle management office. 3. Novice drivers can download and print the sticker from the traffic management bureau's website. Additional information: According to Article 22 of the "Regulations for the Implementation of the Road Traffic Safety Law of the People's Republic of China", the first 12 months after obtaining a motor vehicle driver's license is considered the probationary period. During this period, drivers must affix or display a standardized novice driver sticker at the rear of the vehicle. Violators may be fined between 20 and 200 yuan.
7
5
Share

How often should a five-seater car undergo inspection?

Five-seater cars are exempt from inspection within the first six years. After six years and up to fifteen years, they must be inspected annually. After fifteen years, inspections are required every six months. Below is more information about vehicle inspections: 1. According to legal regulations, once a car is registered with the vehicle management office and obtains an official license plate, it must undergo annual inspections as required. 2. The vehicle inspection must not exceed the stipulated time frame. It can be conducted three months in advance or delayed by one month. If the inspection is delayed by two months, the driver will be fined 200 yuan and receive 3 penalty points. If delayed for a year, 12 penalty points will be deducted.
18
0
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.