What is ETS button on Grand Am?
Pontiac’s Enhanced Traction System (ETS) is standard on all 1999 Grand Am models. ETS is engaged automatically when wheel spin exceeds a predetermined threshold. The Grand Am’s engine management system then calculates the desired torque and transmission gear to optimize front wheel traction.
What does ETS mean in cars?
Electronic Traction System
Why is my ABS and TRAC off light on?
If the brake system is malfunctioning, the traction control light might come on as a result. The light for your ABS might also come on if the brake fluid is low. Your car likely has sensors in those tanks in order to detect when fluids are low, which could be dangerous.
Is it safe to drive with ABS and traction control light on?
If the TCS and the ABS warning lights both come on, along with the red main brake warning light, you should not drive the car until the problem has been fixed. Your entire braking system is affected, and may not be able to stop your vehicle when you need it to. Have your vehicle towed to a repair shop.
What are the signs of a bad ABS sensor?
Symptoms of a Bad or Failing ABS Speed Sensor
- The ABS Light comes on. The most obvious sign of a problem with the ABS system is that the ABS Light will come on.
- Brakes take longer to stop car.
- Less stability under icy or wet driving conditions.
What happens when ABS speed sensor goes bad?
Loss of stability and traction control: If it detects a bad wheel speed sensor, the ABS computer will usually disable the stability and traction control systems, as well. On some vehicles, a bad wheel speed sensor may affect other functions as well, such as hill-start assist and roll stability.
How do I know if my ABS speed sensor is bad?
So, now you know how to test your ABS sensors to find out which one is bad. Using a voltmeter, you can connect it to the ABS sensor and turn the wheel to get a reading. If you don’t or it is wrong, you can clean the ABS reluctor. If the reading is still incorrect, you know which sensor to replace.
How do you check if the ABS is working?
When ABS is working properly, the driver may feel the brake pedal suddenly drop, followed by a rapid pulsing sensation. There may be a grinding or buzzing noise coming from the vehicle during the period ABS is activated. It may also feel like the brake pedal is pushing back when ABS activates.
Is it dangerous to drive with a bad speed sensor?
A bad transmission speed sensor makes for rough and difficult gear changes, and can leave you without an accurate speedometer. All this adds up to a dangerous drive, worsened by the fact that your car is probably less efficient, and producing more harmful emissions.
What causes a transmission speed sensor to go bad?
Over time, the transmission speed sensor can go bad due to wiring issues or just outright failing due to it constantly being used every time you are driving your vehicle. If the sensor is magnetic, it can go bad from iron sticking to the tip of the sensor, which will cause an inaccurate reading.
How long does it take to replace a transmission speed sensor?
How long does it take to replace a transmission sensor? It can take a bit longer depending on the level of damage. Some professional technicians complete the entire replacement task in two or three hours.