Why do the engine fault light and anti-skid light of the Highlander illuminate simultaneously?
3 Answers
Highlander's engine fault light and anti-skid light illuminate simultaneously due to excessive or insufficient current in the electronic throttle module. Here is more related information: 1. Reasons for the engine fault light illumination: (1) Poor quality gasoline that does not meet standards. (2) Clogged or poorly sealed fuel injectors, causing fuel to spray in a linear pattern. (3) Incorrect fuel injection quantity caused by sensor or wiring faults, leading the control unit to issue incorrect commands. 2. Introduction to the Highlander: The Highlander is a Toyota-produced vehicle, a large-size SUV in the Toyota family. It features a spacious body and innovative, roomy interior. Additionally, the Highlander comes standard with the highest level of safety equipment in its class. This SUV offers a very quiet ride, exceptional responsiveness, and combines versatility with driving comfort.
Oh, I've encountered this before. When the engine warning light and the traction control light come on together, it's likely due to a faulty wheel speed sensor. The traction control system relies on it to monitor wheel speed, so if it fails, both lights will trigger. If the sensor is dirty or has poor wiring contact, it can also cause this issue. I once experienced it while driving—the traction control completely failed on a rainy day, making the car skid dangerously. Stop the car immediately and check; don't push through driving, as it could affect braking or engine performance. First, inspect the sensor connectors near the wheels and try gently cleaning them yourself. If that doesn’t work, visit a professional shop to read the fault codes with a diagnostic tool. For the Highlander, many cases involve ABS module issues—replacing or repairing it usually resolves the problem. Regularly clean the undercarriage during car washes to prevent dust buildup, which can help reduce similar faults.
When these two warning lights come on simultaneously, I must emphasize safety first. The engine light indicates potential engine issues such as combustion system problems, while the traction control light involves systems like ABS. Their simultaneous illumination may suggest sensor conflicts or ECU malfunctions. Once problems occur, the risk of losing vehicle control increases significantly, especially on slippery roads where skidding or fishtailing becomes more likely. I've witnessed many car owners neglecting these warnings and ending up in accidents. It's best to pull over immediately and avoid attempting DIY repairs. Check if the speedometer shows abnormalities, as wheel speed sensors are often connected to both ABS and traction control systems. Component replacements aren't overly expensive, but delays could potentially damage other parts.
