Prepare for the Automotive Service Technician Period 1 exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

High voltage wiring is identified by what colour?

High-voltage wiring is color-coded to warn technicians and prevent accidental contact. Orange insulation is the standard color used to identify high-voltage conductors in automotive systems, signaling that those cables carry dangerous voltages and require special handling, PPE, and procedures (like disabling the HV system) before work. This choice stands out from other colors because red is commonly associated with a regular positive supply in many 12V circuits, yellow is used for various warning or non-HV roles in different contexts, and blue is often used for signaling or other non-HV circuits. The orange standard provides a consistent, immediately recognizable indicator across vehicles and service manuals.

High-voltage wiring is color-coded to warn technicians and prevent accidental contact. Orange insulation is the standard color used to identify high-voltage conductors in automotive systems, signaling that those cables carry dangerous voltages and require special handling, PPE, and procedures (like disabling the HV system) before work.

This choice stands out from other colors because red is commonly associated with a regular positive supply in many 12V circuits, yellow is used for various warning or non-HV roles in different contexts, and blue is often used for signaling or other non-HV circuits. The orange standard provides a consistent, immediately recognizable indicator across vehicles and service manuals.