ABS light, brake light, and engine power loss flashing on screen

When it is dewy (rain- or temperature-causing), the ABS and brake warning lights come on at start up. I also get an engine power loss on the info screen once in a while

My car has 103000 miles.
My car has an automatic transmission.

Experienced mechanics share their insights in answering this question :
Hi there, thanks for writing in. This is a typical and common problem with multiple vehicles that have sensors that monitor systems like ABS. The general issue is that when it gets damp and wet, the sensors absorb the liquid and can trigger false warning codes that will illuminate the warning lights to appear. This usually occurs on vehicles with more than 50,000 miles on them. Sensors are connected to electrical harnesses and since they are not 100% sealed, this problem can continue. There really isn’t a way to 100% prevent this problem from occurring. If this issue continues when it’s dry, contact a local mechanic to complete an electrical system inspection to verify the source of your issues.

How to Identify and Fix Common car Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced mechanics :

A poor electrical ground under the battery tray may cause the ABS warning light to illuminate. Our technicians tell us that cleaning and properly securing this ground and also the main ABS ground on the frame rail below the drivers door may be necessary.
Four Reasons Your Anti-lock Brake System Light Can Come On

The four common reasons that typically cause this light to turn on include a malfunctioning ABS module, low levels in the fluid reservoir, broken wheel speed sensors, or the system is turned off.

The best course of action is to stop immediately and call a mechanic, but if it is safe to do so, get to a garage and they can have a look at it. Common problems that can cause an ABS warning light to stay on include a faulty sensor, worn brake pads, or a faulty control module.
Resetting Your ABS Dashboard Warning Light

Step One: Disconnect the positive cable from your car battery. Then, hold down the brake pedal to drain the vehicle`s electrical system. This will result in a reset of the car`s central computer. Plug the cable back in to restore power.

If your ABS light comes on individually, you are safe to drive your car to your destination, as your normal brakes will still work. You will, of course, have to be more careful as your ABS will not respond in case of an emergency.
When your car`s ABS light comes on, it means there is a problem with your vehicle`s braking system. You need to address this issue; otherwise, it could make your car unsafe to drive. ABS is a type of braking system used in all cars produced since Sept.
The ABS controller powers on to self-test every time you turn on the ignition. If that controller gets insufficient data, or a hydraulic pump or valve isn`t responding, it illuminates the ABS light on the dashboard. ABS relies on a properly operating conventional brake system.
In general, you can still continue driving even if your car`s ABS light is on. This is because your car`s brakes still function as usual and can still slow your vehicle down.
If the ABS light on the instrument panel illuminates, our technicians recommend checking the battery first. A weak battery can cause the ABS light to turn on. A brake light that is not working or has burned out can also cause the ABS light to illuminate.
The most common ABS problems occur when sensors become contaminated with debris or metal shavings. Malfunctions also occur when sensor wiring becomes damaged, resulting in intermittent or no continuity.
What detects the fault in the anti-lock brake system? Explanation: The fault detection in an electronic brake system is possible by fault code diagnosis through Electronic control unit.
A failure in the anti-lock brake system (ABS) causes the ABS pump to continuously run, which will eventually wear down the battery.
Please note that ABS brakes don`t work well on ice – the wheels can still lock up.
If the ABS system is not functioning properly, then your vehicle is likely to skid, hydroplane and lose traction under heavy braking conditions. The last time you want to find this out is when you need it most in tough conditions, which could lead to an accident on the road.
In short, changes in the base brake system characteristics (hardware) may impact ABS/TCS/ESP performance in any or all of these three areas.
An ABS light is an alert that lets a driver know when there is a problem with their anti-locking brake system. The light is located on the dash, and is usually colored yellow, orange, or red.
1. ABS Light is illuminated on the dashboard. Since the wheel speed sensor also monitors the anti-lock braking system on your car, it`s common for the ABS Light to illuminate when the sensor is worn out, disconnected, or has been struck by debris, which means you`ll have to replace the wheel speed sensor.
All you have to do is connect the device to your OBD2 carport and run an ABS test. From there, you will have a clearly identified trouble code about what is wrong with the ABS. With this pinpointed information, you can easily diagnose and fix the issues with your vehicle.
When ABS is engaged, you can still manoeuvre around obstacles. Without ABS, when using maximum braking in a panic situation, you may lock your wheels and subsequently lose steering control.
In a car with no ABS, you`ll lock the wheels and steering will be impossible, unless you`re a skilled driver who can, in a stressful situation, manage the brake pressure and unlock the wheels.
This repair takes on average 0.90h – 1.10h for a mechanic to complete. If one of your car`s ABS speed sensors fails, a mechanic can take off your car`s tires and perform an ABS speed sensor replacement.
In certain cases, depending on the model of vehicle, when the ABS module fails, the brake pedal may become unresponsive. This is an obvious problem, as an unresponsive brake pedal will not stop a vehicle, or will not be able to do so in an adequately safe manner. In most cases, this will happen slowly, over time.
Water common to both. Water in sensors, aquaplaning etc COULD cause ABS to get confused. Water in induction or sensors can cause limp mode. ABS and traction control lights both take signals from wheel rotation usually wheel too slow ABS and too fast traction control.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Abs light, emergency brake light, steering wheel assist light, engine light, EPC light, traction control light
ANSWER : Hello, thank you for writing in. The vehicle does utilize a lot of the same sensors for these systems. Are there any other codes that are coming up when this code appears? If so you will want to take these into consideration when processing the repair and making a diagnosis. The module may be bad, and replacing it should fix the problem. The lights should turn off once the main computer recognizes the new module and the sensors sync up. If you believe the sensors need to be cleaned you may do so. Do as minimal as possible to make sure you are not damaging the sensor or disrupting the wiring inside. A bad connection would make the lights stay on. With so many lights that are effected by the module being illuminated, the module is likely bad or does not have a connection. Check the connection first and then resort to replacing the unit. For more help with these electrical tests, contact our service department.

2012 equinox reduced power light engine light and traction light came on. Lost a lot of power got home and all light except engine
ANSWER : Your car has what is called a "safe mode" that will be engaged by the computer when it detects that something critical has gone wrong related to any of the major components in your engine chassis or power train. This may be related to a number of things, most of which should have been registered in the computer when the check engine light came on. I recommend having an expert from YourMechanic come to your location to inspect your check engine light and diagnose any codes registered by your vehicle’s computer.

EPC light on 2004 Jetta. Code said brake switch faulty, but brakes lights worked. Replaced brake switch, now no brake lights.
ANSWER : Hi there. The first thing that pops in my mind beyond of what you have listed is perhaps the electrical harness attached to the brake switch. Perhaps the harness itself is damaged or you have an exposed wire, loose ground wire somewhere. You might want to have a professional mobile mechanic come to your location and complete a brake lights not working inspection to help you diagnose this issue.

When I put my foot on the brake my back left brake light goes off, when I take it off the brake the brake light comes on
ANSWER : I would suggest trying to disconnect and reconnect the wiring to the rear lights. I have seen these older Toyota vehicles rear lighting short out on the lights themselves due to the way the light circuit was made on the lamp housing. Look at the housing circuit on the light to see if one is touching another, and that could tell you why it is malfunctioning. There could also be a problem with the brake light switch. If you are not comfortable dealing with wires, I recommend getting in touch with a certified mechanic who can look at your brake light issue for you to see what’s going on.

While driving on freeway truck goes into a limp mode, and the check engine light, abs light, parking break light, service brake
ANSWER : It is possible that you could be having an issue with your powertrain control module. This is somewhat of a common problem on many GM vehicles. I would recommend having your vehicle inspected by the dealership to determine if the powertrain control module is functioning properly. If not, a reflash of the powertrain control module may resolve the issue but often times it must be replaced.

ABS light, brake light, and engine power loss flashing on screen
ANSWER : Hi there, thanks for writing in. This is a typical and common problem with multiple vehicles that have sensors that monitor systems like ABS. The general issue is that when it gets damp and wet, the sensors absorb the liquid and can trigger false warning codes that will illuminate the warning lights to appear. This usually occurs on vehicles with more than 50,000 miles on them. Sensors are connected to electrical harnesses and since they are not 100% sealed, this problem can continue. There really isn’t a way to 100% prevent this problem from occurring. If this issue continues when it’s dry, contact a local mechanic to complete an electrical system inspection to verify the source of your issues.

Brake lights are not working. replaced brake light swtch still no brake lights. the third brake light the connection was melted at
ANSWER : The first thing to do is to repair third brake light and replace the brake light fuse and then see if the third brake lights work and the lower lights start working? If only the 3rd brake light starts working then you may need a further checks on the turn signal flasher or switch could be bad.

Battery light goes on when I start car then turns off, if I rev engine light comes back until rpms go down. Abs goes comes on/off
ANSWER : Batteries can die due to faults in the charging system so ideally a suspected "faulty" battery should be load tested before a decision is made to condemn it. The only exception to this rule is if the battery is already clearly "old" (greater than 5 years) but even then once you put a new battery in, as a replacement for a "dead" battery, you have to comprehensively check out the charging system. Diagnostic Trouble Code P0460 will result in disruption of the dashboard fuel gauge’s ability to accurately report your tank’s fuel levels. The fuel gauge readings may be erratic, or read somewhere off scale. Vehicles equipped with a low fuel warning light feature may also suffer from erratic low fuel warnings in the event of a code P0460. Unless the P0460 code has been reported alongside other trouble code, all of the vehicle’s essential systems should otherwise function normally. I would recommend that you request a check engine light diagnostic to first resolve the fault causing the P0460 code to set. The check gas cap light warning light could be due a faulty gas cap and/or small leaks in the EVAP system.