Vehicle Diagnostics
Essential Auto is Ottawa’s premier vehicle diagnostics facility. We specialize in electrical, sensor, and module issues that prevent repairs, module programming, and ADAS (Advanced Driver Assistance Systems) calibration.
Why Ottawa Body Shops Choose Essential Auto
Controlled Environment
Our dedicated ADAS facility features diagnostic stations with OEM interfaces and direct access to manufacturer wiring diagrams and service bulletins for accurate electrical testing every time.
24-Hour Turnaround
When vehicles arrive with warning lights, failed calibrations, or unexplained electrical faults, we identify the issue within 24 hours, avoiding dealership delays and unnecessary part replacement.
Professional Diagnostic Equipment
Our professional-grade diagnostic scanners and OEM-level software allow us to diagnose and calibrate even the newest vehicle models.
We solve diagnostic problems that even dealerships can’t fix.
Comprehensive Documentation
Every diagnostic service includes a detailed PDF report with pre- and post-scan results, identified faults, completed procedures, and photographic evidence of OEM-compliant work.
OEM-Level Software
We use factory-grade diagnostic software for all makes and models, providing access to locked modules, guided fault tests, live data, and calibration prerequisites that aftermarket scanners can’t reach.
Proven Diagnostic Expertise
Our I-CAR Certified facility has serviced 9,000+ vehicles in three years. When complex diagnostic problems threaten to delay repairs, experience makes the difference.
Post-Repair & Collision Vehicle Diagnostics
After repairs or a collision, vehicles often present with dashboard warning lights, communication errors between modules, or systems that won’t respond to calibration.
We perform comprehensive electrical diagnostics to identify the root cause before Static & Dynamic Calibrations.
Post-Repair or Collision Vehicle Diagnostics
After repairs or a collision, vehicles often present with dashboard warning lights, communication errors between modules, or systems that won’t respond to calibration.
We perform comprehensive electrical diagnostics to identify the root cause before Static & Dynamic Calibrations.
Dynamic ADAS Calibration
Dynamic calibration is performed on the road, using real-world references such as lane markings, traffic signs, and surrounding vehicles to teach the system how to respond in actual driving conditions.
Replacing a module? Our Module Programming ensures correct communication before calibration.
Frequently Asked Questions
Customer Testimonials
Book Vehicle Diagnostics
Stop guessing. Get a definitive diagnostic answer today.
24-hour turnaround, in-house diagnostics, and OEM-level accuracy make Essential Auto the trusted diagnostic partner for body shops and collision centres across Ottawa.
Request vehicle diagnostics today using the form below.






