Check engine light and car diagnostics in Richmond Hill.
Warning lights, strange noises and problems that come and go. We find the cause before we replace anything.
- Estimate before any work
- Parts warranty from 1 year to lifetime
- 30-day labour warranty
- Walk-ins welcome

Diagnostic services
Testing first, parts second.
Check engine light
Code scans plus proper testing, so we fix the fault behind the code.
Warning lights
Brake, battery, temperature, oil pressure and tire pressure lights diagnosed.
Noises and vibrations
Clunks, squeals, hums and shakes tracked down on the road and on the lift.
Module programming
Control modules programmed and systems reset after repairs.
What your warning lights mean
Red means danger: stop safely and get the car checked. Amber means it needs attention soon, though the car can usually still be driven for a short time.1
| Light | What it means | What to do |
|---|---|---|
| Oil pressure | Engine oil pressure is too low. | Stop safely, turn the engine off and check the oil level. If the light stays on after a restart, turn the engine off and have the car towed.1 |
| Engine temperature | The coolant is too hot, or there is a coolant leak. | Stop safely, let the engine cool and check the coolant level. Have it towed if needed.1 |
| Brake system | A red circle with an exclamation mark means a brake system problem. | Test the brake pedal and parking brake. If the light stays on, check the brake fluid level or have the car towed.1 |
| Battery or charging | A problem with the battery or charging system. | Cut back on electrical use and have the car towed to a shop.1 |
| Check engine, flashing | A serious engine problem. | Stop somewhere safe and have the car towed to the nearest garage.1 |
| Check engine, steady | A fault in the emissions control system. | Make sure the gas cap is tightened until it clicks. If the light stays on, visit a repair shop.1 |
| ABS | The anti-lock braking system isn't working. | Avoid hard braking and see a mechanic right away.1 |
| Tire pressure | One or more tires is low on air. | Check the tire pressures and inflate the low tire.1 |
| Airbag | A fault in the airbag system. | Contact your mechanic as soon as possible.1 |
How a visit works
Three steps, no surprises.
1. Book or walk in.
Call 905-737-9111, send the booking form, or just stop by 11623 Yonge Street.
2. We check and explain.
We tell you what needs doing now, what can wait, and what's fine, with a clear estimate in plain words before any work starts.
3. Drive away sure.
Fixed to spec and backed by a parts warranty of 1 year to lifetime and 30 days on labour.
Questions
Straight answers to what drivers ask us most.
Is it safe to drive with the check engine light on?
If it is steady, make sure the gas cap is tight, and if the light stays on, visit a repair shop. If it is flashing, stop somewhere safe and have the car towed.
What is the difference between a red and an amber warning light?
Red means danger: stop safely and get the car checked. Amber means it needs attention soon, though the car can usually still be driven for a short time.
Will I get a price before you start?
Yes. We explain what we found and give you a clear estimate in plain words before any work starts. You decide.
Do you work on my make of car?
Yes. Domestic and import cars, SUVs and trucks, including European brands like BMW, Mercedes-Benz, Audi and Land Rover.
Where to find us
We're at 11623 Yonge Street in Oak Ridges, Richmond Hill, an easy drive from Aurora, King City, Newmarket, Vaughan, Maple, Markham, Stouffville and Thornhill. Open Monday to Friday 8 to 6 and Saturday 8 to 2.
Related services
More of what we do under the same roof.
Sources
The facts on this page come from these sources. The small numbers in the text link here.
Tell us what your car is doing.
We'll find the cause and give you a clear estimate before any work starts.