COMPUTERIZED OBD-II DIAGNOSTICS &
ELECTRICAL ANALYSIS
Dealership-grade CAN-Bus network scanning, live sensor telemetry, ECU/PCM module programming, and oscilloscope circuit tracing at 265 Centennial Pkwy N Unit 3, Hamilton.
When a Check Engine, ABS, Traction Control, or Airbag warning light illuminates on your instrument cluster, your vehicle's onboard computer (PCM/ECM) has logged an active diagnostic trouble code (DTC).
At Centennial Tire & Auto Service in Hamilton, we don't just clear codes or guess which part to replace. We connect factory-grade diagnostic scanners, verify live sensor telemetry, and perform digital multimeter and oscilloscope waveform testing to find the exact electrical fault.
Deep ECU memory extraction to identify engine misfires (P0300), EVAP emissions leaks, and catalytic efficiency faults.
Tracing wiring harness shorts, broken module communication lines, and parasitic battery drain issues.
Live data monitoring of Oxygen (O2) sensors, Mass Airflow (MAF), throttle position, and fuel trims.
Pinpointing wheel speed sensor dropouts, ABS hydraulic pump codes, and supplemental restraint airbag faults.
🚨 Flashing Check Engine Light
Active cylinder misfire dumping raw fuel into exhaust; stop driving immediately.
🐌 Engine Hesitation or Limp Mode
Vehicle restricts RPM to prevent catastrophic engine or transmission damage.
🔋 Parasitic Battery Drain
Dead battery overnight caused by active control modules staying awake.
⛽ Sudden Fuel Economy Drop
Faulty O2 sensors causing rich fuel mixture and excess gas consumption.
Scanning all onboard computer controllers for stored DTC codes.
Oscilloscope testing on actuators and sensor wiring harnesses.
Written explanation and itemized quote before turning a wrench.
A solid light indicates a non-critical emissions or sensor fault. You can drive to our Hamilton shop, but have it audited promptly to avoid catalytic converter damage.
A trouble code only tells you what circuit failed—not which specific part is bad. Replacing sensors without circuit testing often wastes hundreds of dollars without solving the root issue.