Preliminary Inspection

Verify customer complaint by operating charging system. Visually inspect for obvious signs of mechanical and electrical damage. Inspect for blown fuses and damaged relays. For fuse and/or relay identification, see Fig 1 and Fig 2 . Inspect for loose or corroded connections, damaged wiring harnesses and/or switches. Check for broken or partially broken wire inside insulation, which could cause system malfunction but prove good in a continuity/voltage check with system disconnected. Ensure any aftermarket electronic equipment is properly installed. If fault is found, repair as necessary. If no fault is found, perform self-diagnostics. See SELF-DIAGNOSTIC SYSTEM .

Fig 1: Identifying Joint Box Fuses

Courtesy of MAZDA MOTORS CORP.

Fig 2: Identifying Main Fuse & Relay Box Components

Courtesy of MAZDA MOTORS CORP.