What is the fault when the ABS light is on in the Fit?
3 Answers
The reasons for the ABS light being on in the Fit are as follows: Reason 1: The sensing part of the ABS speed sensor is covered by dirt, mud, or other contaminants, affecting the sensor's ability to detect the corresponding speed signal. This prevents the ABS computer from determining the vehicle speed and the wheel slip rate, thus failing to issue appropriate commands to adjust braking. Solution: Clean the dirt from the speed sensor and adjust the gap between the speed sensor and the signal gear ring to restore normal operation. Reason 2: Poor signal due to loose connections between system lines or poor contact in the ABS relay, leading to system failure. The most common issue is a loose connection in the speed sensor wiring, which causes the fault. In such cases, the ABS computer's fault memory will also display a poor speed sensor signal. Solution: Check the wiring connections and reconnect any loose parts.
When the ABS light suddenly came on while driving my Fit, I immediately thought it might be an issue with the wheel speed sensor. I've encountered this situation once before—after driving through a waterlogged section on a rainy day, the sensor got clogged with mud, causing the system to misinterpret wheel slip. Another possibility is aging sensor wiring leading to poor contact, especially in cars over five years old. An ABS control module failure is more troublesome and costly to repair. I remember that time when I drove to the repair shop, the mechanic first used a diagnostic tool to read the fault code, confirming it was dirt on the right front wheel sensor. After cleaning it, the light went off. If you're not knowledgeable about this, don't rush to drive fast—without ABS, emergency braking can easily lead to loss of control.
The ABS light coming on is definitely not a trivial matter, as it indicates the anti-lock braking system may have failed. There are four common issues: wheel speed sensor failure is the most frequent occurrence - the Fit's low chassis makes its sensors vulnerable to damage from kicked-up stones; wiring short circuits or open circuits require checking if rodents have chewed through the harness; ABS pump relay failure can cause power interruption; and control module water damage leading to burnout happens occasionally in humid southern regions. I recall a colleague's car suffered module failure from direct high-pressure washer spray on the chassis during cleaning. The emergency solution is to brake gently to prevent wheel lock-up and immediately seek professional garage diagnostics - never compromise on brake safety by opting for roadside repair stalls.
