Stahlcar Blog

Freeze frame data records vehicle conditions when a fault code is set. Learn what the readings mean and how they can help with diagnosis.

A scan tool can clear a check engine light, but it does not repair the fault. Here is what code clearing changes and how New Zealand WOF rules fit in.

Scan tool not connecting? Work through power, ignition, OBD2 compliance, vehicle selection, Bluetooth setup, battery voltage and fuse checks in the right order.

Live data can turn a fault code into a useful diagnosis. Learn which scan-tool readings to check first, how to compare them, and when you need a full-system tool.

Bidirectional scan tools can command supported vehicle components to operate. Learn how active tests work and when this diagnostic capability is useful.