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Home >> Saturn >> 2003 >> Ion 1 Standard >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Headlights >> Lighting Systems >> Description and Operation >> Exterior Lighting Systems Description and Operation >> Backup Lamps

Backup Lamps

The 15-amp BACK UP fuse in the fuse block - underhood supplies ignition positive voltage to the park/neutral position (PNP) switch of an automatic transmission or the backup lamp switch of a manual transmission. When the transmission is placed in reverse, the appropriate switch supplies voltage to the backup lamps. The backup lamps receive ground at G401 and G403.