H4 - Continuity Check
^ With Rotunda Digital Multimeter 105-00050 or equivalent, measure resistance across circuit 159, R/PK (pin 1) and across circuit 450, DG/LG (pin 15) of mating connector.
^ Is continuity present?
YES -- Check fuse. Check chime module. Service if necessary. Go to H5. H5 - Check "Push Lever Down" Indicator
NO -- Service respective circuit. Go to H5.