Toyota Corolla Electrical Schematic Diagram The Corolla is a line of subcompact/compact cars produced by the Japanese automaker Toyota, which has become very popular throughout the world since the nameplate was first introduced in 1966.

The following and Wire Harness Diagram apply for Toyota Corolla 1990 model year. Here you will find detail illustration of all and components of the vehicle including A/C and Heater System, Alternator, Back Door Courtesy Switch, Battery, Brake Fluid Level Switch, Center Differential Control Switch, Circuit Opening Relay, Clutch Start Switch Defogger, Distributor, ECU and Ignition Fuse, Engine Main Relay, Fuse Link Box, Ignition Switch, Igniter, Instrument Cluster, Integration Relay, Power Main Relay, Relay Block, Starter System, Shift Lock ECU, Theft Deterrent System, etc.

Find more information about Toyota Corolla and Wire Harness Diagram here. (source:

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