Switches, Gauges & Instrument Panels: Testing: Gauges: Ammeter
- Turn headlights on; engine off. Meter pointer should move toward the "D" or discharge side of the gauge. If no pointer movement is noted, check rear of meter housing for loose connections, printed circuit connections and multiple connector at printed circuit.
- If connections are good, replace ammeter. Should ammeter pointer move toward "C" with lights on and engine off, ammeter connections are reversed. This is most likely to occur in an ammeter system that uses a wiring harness rather than a printed circuit.