What causes the ABS warning light to illuminate in the Emgrand EC7?

[LaRafael]

There are multiple states in which the ABS light may illuminate, with different causes and solutions for each state. Details are as follows: State 1: ABS warning light remains constantly lit (most common). Cause 1: The ABS wheel speed sensor's sensing area is covered by dirt, mud, or other contaminants, affecting its ability to detect the corresponding speed signal. This prevents the ABS control unit from determining the vehicle speed or calculating wheel slip rates, thus failing to issue appropriate commands for brake adjustment. Solution: Clean contaminants from the wheel speed sensor and adjust the gap between the sensor and the tone ring to restore normal function. Cause 2: Poor signal transmission due to loose system wiring connections or faulty ABS relay contacts. Solution: Inspect wiring connections and re-secure any loose connections. State 2: ABS warning light intermittently illuminates but turns off during acceleration. Cause: When multiple electrical components are in use, battery voltage drops below 10.5V. The light extinguishes as engine speed increases and voltage rises. Possible low system supply voltage due to poor terminal contact or grounding issues. Solution: Check battery specific gravity; inspect charging system; examine power supply components (e.g., voltage relay or poor power contacts). State 3: ABS warning light stays illuminated after engine start until engine IGFF position. Cause: Poor grounding connection of ABS hydraulic valve body; faulty wiring harness connector at hydraulic valve body; ABS control module malfunction. Solution: Loosen and re-tighten hydraulic valve body ground screw, cleaning contact surfaces if necessary; inspect connectors for excessive play; replace ABS or ABS/ASR control module. State 4: ABS warning light illuminates during high-speed driving. Cause: ABS control module detects excessive speed difference between rear and front wheels; incorrect tire or wheel rim specifications. Solution: Verify proper tire and wheel rim specifications as indicated on vehicle's fuel filler door label. State 5: ABS warning light intermittently flashes. Cause: Improper brake light switch adjustment; internal contact failure in brake lights. Solution: With engine running, depress brake pedal and manually push brake switch lever downward to reset position; replace brake light switch if needed. When the ABS warning light is illuminated, continued driving is not recommended. An active ABS light indicates a malfunction in the anti-lock braking system. During emergency braking, wheel lock-up may occur, causing loss of vehicle control and skidding, which prevents the driver from decelerating or adjusting the vehicle's trajectory, posing significant safety risks.

[LaMiranda]

The ABS warning light on the Emgrand EC7 generally indicates an issue with the anti-lock braking system. Common causes include dirty or faulty wheel speed sensors—for instance, small sensors near the wheels getting clogged with mud or dust, leading to unstable signals; ABS control module failure, possibly due to internal circuit problems; poor wiring connections or short circuits, such as loose plugs or water ingress; blown fuses, which are more common in older vehicles; or wheel bearing issues affecting sensor readings. I’ve personally encountered a similar situation where cleaning the sensor resolved it. However, since ABS is critical to braking safety, don’t delay when the light comes on—drive straight to a 4S shop or a reliable repair shop to diagnose the trouble codes and pinpoint the issue, avoiding the risk of brake failure during emergency stops. Prompt action can save you more trouble down the road.

[Arya]

The illuminated ABS light on the Emgrand EC7 should never be taken lightly. This system is the core for preventing wheel lock-up, and once it fails, the vehicle is prone to losing control or skidding during rainy conditions or sudden braking. The root causes often include wheel sensors contaminated with mud, brake hydraulic system leaks, or a faulty control computer board. Daily driving on bumpy roads can also loosen the wiring. My advice is to immediately slow down and pull over, avoiding long-distance driving. Check the undercarriage for any debris obstructing the wheel speed sensors. Minor issues can be resolved, such as replacing a fuse or cleaning the sensors; more severe cases require professional repair. Safety comes first—prompt diagnosis by a technician ensures peace of mind on the road. Negligence could lead to more serious accidents.

[AlexisRose]

The illuminated ABS light on the Emgrand EC7 can have various causes. The most common issues include a faulty wheel speed sensor (dirty or damaged sensors can cause signal errors), problems with the ABS module (such as circuit failure in the control unit), broken wiring or blown fuses, and worn bearings interfering with the sensor. Simple DIY checks you can perform: crouch down to inspect the sensors near the tires for dirt and clean them with a cloth; open the fuse box to check if the ABS fuse is intact. If these don’t resolve the issue, avoid further tampering and take the car to a repair shop to read the fault codes—it saves time and ensures safety. Those with strong DIY skills can try resetting the system, but it’s best not to delay repairs. Address the problem promptly to avoid potential braking hazards.