The document contains wiring diagrams for various electrical circuits of a 1988 Volvo 240DL/GL, including the rear defogger, fuse block, HVAC and instrument panel, accessories, passenger compartment, taillights, horn, power antenna, power door locks, power mirrors, heated seats, power windows, radios, charging, starting, front and headlight windshield washers/wipers, rear washers/wipers with and without intermittent relays, engine compartment, and headlights.