What Symptoms Will Appear When The Abs Sensor Is Damaged? How To Solve It?

ABS stands for Anti-lock Braking System (ABS).

The ABS speed sensor is a key component of the ABS system.

It is responsible for real-time monitoring of wheel speed.

And transmits the speed signal to the ABS control unit.

The control unit determines whether the wheel has a tendency to lock based on these signals.

Thereby adjusting the brake pressure to prevent the wheel from locking.

In response to this problem, today NIBD will analyze the ABS speed sensor.

Fault phenomenon and cause.

Causes Of Abs Speed Sensor Damage.

01. Abnormal signal

Fault Phenomenon

The wheel speed display on the vehicle dashboard is inaccurate, or the ABS system works abnormally, and the wheel speed signal data read by the diagnostic equipment is unstable, missing or wrong.

Fault Cause

1) The sensor head is dirty, and foreign objects such as iron filings are adsorbed, affecting the magnetic field induction.

2) The sensor harness is damaged, broken or short-circuited, resulting in poor signal transmission.

3) Failure of internal components of the sensor, such as damage to the induction coil, chip failure, etc.

Maintenance Plan

Clean the induction head; use a multimeter to detect the resistance of the wiring harness, repair or replace the damaged wiring harness; use professional diagnostic equipment to confirm the internal fault and replace the sensor.

02. Abs Fault Light Is On

Failure Phenomenon

After the vehicle is started or driven, the ABS fault light on the dashboard is always on.

Fault Cause

1) The sensor connector is loose, has poor contact or is rusted, resulting in interruption or instability of signal transmission.

2) Abnormal power supply to the sensor, such as a blown fuse, a power supply line break, etc.

3) Communication failure between the sensor and the vehicle's ABS control unit may be a line problem or a control unit failure.

Maintenance Plan

Check and tighten the connector, clean the contacts; check the power cord; use diagnostic equipment to detect communication. If the line is normal, the control unit needs to be repaired or replaced.

03. Intermittent Sensor Failure

Failure Phenomenon

During vehicle driving, the ABS fault light occasionally lights up, the wheel speed signal occasionally becomes abnormal, and the ABS system occasionally fails or does not work.

Fault Cause

1) The sensor is installed loosely, and the gap between the sensor head and the gear ring changes when the vehicle bumps, affecting signal acquisition.

2) The sensor is subject to external electromagnetic interference, such as strong electromagnetic equipment nearby, improper vehicle modification, etc.

Maintenance Plan

Retighten the sensor; check and eliminate the interference source, and install a shielding cover on the wiring harness.

First choice for maintenance - NIBD ABS speed sensor

01. German Imported Chip

Adopting German imported Infineon chip, stable quality, accurate and reliable signal transmission, ensuring that the ABS system accurately senses the wheel speed.

02. Exquisite Craftsmanship

Adopting high-precision positioning integrated casting molding process, excellent anti-corrosion and explosion-proof performance, stable operation in harsh environment, and longer service life.

03. Original Vehicle Standard

Designed and manufactured in strict accordance with the original vehicle standard, the interface is standardized, can be installed on site, has strong adaptability, and reduces installation and debugging time and difficulty.

ABS speed sensor is the core component of the ABS system and is crucial to vehicle braking safety.

NIDB ABS speed sensor

With the advantages of high-quality chips, exquisite craftsmanship, original vehicle adaptation and perfect after-sales service, it provides vehicles with reliable wheel speed monitoring solutions, making every trip worry-free.