Printed Circuit

The instrument cluster printed circuit:
- Supplies current to the instrument panel lamps and warning indicators.
- Is made of copper foil which is bonded to the polyester-base film (usually referred to as Mylar).
- Is mounted to the instrument cluster housing and, due to its location, cannot be easily inspected or tested in the vehicle.
- Is vulnerable to damage when a probe is used for in-vehicle testing because the probe can pierce the printed circuit or, in some cases, burn the copper conductors.