Thermal imaging complements OBD2 scanners by revealing heat patterns that sensors and codes miss — clogged radiators, dragging brakes, misfiring cylinders, and parasitic electrical drains all show distinct thermal signatures.
TOPDON TC and TS Series
- TC004 Mini — pocket standalone imager, 240×240 TISR, 15-hour battery
- TC004 3.5" — built-in display, 512×384 TISR for sharper detail
- TC001 / TC002 / TC002C — phone-attached modules for Android, iOS, or USB-C universal
- TS004 — monocular form factor for quick under-hood aiming
Automotive Use Cases
Scan a cooling system for cold spots indicating blockages. Compare exhaust manifold temperatures to find misfiring cylinders. Check brake rotors after a drive for uneven heat indicating stuck calipers. Trace HVAC ducts for blend door leaks. Inspect wiring connectors and alternators for abnormal heat under load.
Shop Workflow
Pull OBD2 codes first with a TOPDON scanner, then use thermal imaging to confirm mechanical or cooling faults before replacing expensive modules. Document before/after thermal images when the app supports capture.
Browse thermal tools in diagnostic tools — including the TC004 Mini and TS004 monocular.
