Vehicle Diagnostics

Complete Vehicle Diagnostics in Angola, IN

Check Engine • ABS/Traction • Airbag/SRS • HVAC • Electrical • ADAS • Module/Network

Technician performing full-system vehicle diagnostics with scan tool and testing equipment

When a warning light comes on or a vehicle starts acting up, guessing gets expensive fast. At Lonsbury Garage in Angola, IN, we provide complete vehicle diagnostics across all major systems—so you get a verified answer, a clear repair path, and fewer repeat visits.

What We Diagnose (All Vehicle Systems)

We diagnose concerns across the full vehicle, including:

  • Engine & drivability (check engine light, misfires, rough idle, stalling, power loss)
  • Fuel & air (fuel delivery, sensor inputs, vacuum leaks, intake/boost issues)
  • Transmission & driveline (shift concerns, slipping, harsh shifts, noises/vibration)
  • ABS / traction / stability (wheel speed sensors, brake control issues, warning lights)
  • Airbag / SRS (airbag light, seat belt pretensioner circuits, occupancy sensors)
  • HVAC & climate control (no A/C, weak heat, blend door issues, electronic controls)
  • Electrical & charging (no-start, battery drain, alternator/charging faults)
  • Steering & suspension (clunks, pulls, vibrations, electronic steering concerns)
  • ADAS & driver assistance (camera/radar faults, lane/forward warning alerts, calibration-related codes)
  • Network/module communication (U-codes, CAN/LIN issues, intermittent module dropouts)

Common Reasons to Schedule Diagnostics

If any of these are happening, diagnostics can save time and money:

  • Check engine light (steady or flashing)
  • ABS / traction / stability warning lights
  • Airbag / SRS light
  • Hard start / no-start or intermittent start
  • Overheating, coolant loss, or temperature warnings
  • Shifting issues (delays, slipping, harsh shifts)
  • Poor fuel economy or loss of power
  • AC not cold / heat not hot or blower/controls not working
  • Strange noises, vibrations, pulling, or clunks
  • Multiple warning lights at once (often shared power/ground or network causes)

Our Diagnostic Process (How We Get to the Root Cause)

We don’t stop at “it has a code.” We confirm the complaint, test the system, and verify the fix. Depending on the concern, diagnostics may include:

  • Full module scan (not just the engine computer) and code interpretation
  • Live data review and commanded output testing
  • Road testing to reproduce symptoms and capture data
  • Electrical testing (voltage drop, circuit load testing, reference/ground checks)
  • Mechanical checks (smoke testing, pressure/vacuum testing, compression as needed)
  • Service information and pinpoint testing (when applicable)
  • Post-repair verification to confirm no repeat faults

System-by-System Diagnostic Examples

Check Engine & Drivability Diagnostics

Misfires, rough idle, stalling, or lack of power can come from ignition, fuel delivery, air leaks, sensor inputs, or mechanical issues. We use scan data and targeted testing to identify what’s actually failing.

ABS / Traction / Stability Diagnostics

ABS and traction lights often involve wheel speed sensors, tone rings/bearings, wiring, or brake control module concerns. We test signals, wiring integrity, and system operation before recommending parts.

Airbag (SRS) Diagnostics

An airbag light means the system may be disabled. We diagnose SRS faults such as seat belt pretensioner circuits, occupancy sensors, clock springs, and connector concerns with care and proper procedures.

HVAC & Climate Control Diagnostics

No A/C or weak heat can involve refrigerant leaks, control issues, blend door actuators, sensors, or compressor controls. We confirm pressures, operation, and electronic commands to identify the correct fix.

ADAS & Advanced Safety System Diagnostics

Driver assistance warnings can be caused by sensor faults, wiring, aiming concerns, or calibration needs after repairs. We diagnose the fault path and recommend the correct service (including calibration-related repairs when applicable).

Module Communication & Intermittent Electrical Issues

Multiple lights, random failures, or U-codes often point to power/ground faults, network issues, water intrusion, or connector problems. We isolate the failure using scan communication checks and circuit testing.

Vehicle Diagnostics Near You

If you’re searching for vehicle diagnostics near me, check engine diagnostics in Angola, IN, or help with multiple warning lights, call (260)665-5165. We’ll schedule testing, confirm the concern, and provide a repair plan you can trust.


Vehicle Diagnostic FAQs

Do you just read codes?

No. Codes are a starting point. We confirm symptoms, review live data, run tests, and verify the root cause so you don’t pay for guesses.

Can low battery voltage cause multiple warning lights?

Yes. Low voltage, poor grounds, or charging problems can trigger multiple modules to set codes at once. We check system voltage and power/ground integrity early in the process.

How do you handle intermittent problems?

We use road testing, data capture, wiggle/connection testing, and targeted circuit checks to reproduce the issue and confirm the fault—then verify the repair.

Check Engine & Drivability

Technician diagnosing check engine light using scan data and test equipment

Misfires, rough idle, stalling, or low power? We diagnose fuel, ignition, air, and sensor inputs to find the real cause.

Call to Schedule

ABS / Airbag / Network Diagnostics

Dashboard warning lights for ABS and airbag with diagnostic scan tool connected

ABS, traction, airbag, or multiple lights on? We scan all modules and test shared circuits and communication paths.

Request Appointment
More Helpful Resources
ADAS camera and calibration target setup in a service environment

ADAS & Warning Lights

Camera/radar faults and driver-assist warnings often need accurate diagnosis to determine if repair or calibration is required.

Technician performing AC system diagnostics with gauges and scan tool

HVAC Diagnostics

From leak detection to electronic control issues, we diagnose climate systems to restore comfort reliably.

Engine bay inspection paired with scan data review during diagnostics

Engine & Performance

We use scan data, testing, and verification to solve drivability problems and prevent repeat check engine lights.