The original fuse boxes are prone to corrosion. Many reviewers recommend replacing them with modern blade-type (nožasti) fuse holders for better contact reliability. Grounding (Masa):
Includes the 12V battery, high-power starter motor, and the alternator (originally a DC dynamo on older models). Ignition & Control: shema instalacije imt 539 pdf
Houses the key switch, heater plug (grijač) for cold starts, and basic fuse box. The original fuse boxes are prone to corrosion