Toyota Corolla (E120): Circuit description

If the ignition switch is turned to the on position, battery positive voltage is applied to the switches, such as terminal ig of the ecu.

Wiring diagram

Inspection procedure

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    Tire & wheel
    Wheel and tire system Inspection 1. Inspect tire  check the tires for wear and proper inflation pressure. Cold tire inflation pressure: Using a dial indicator, check the tire runout. Tire runout: 3.0 Mm (0.118 In.) Or less 2. Rotate tire Hint: see the illustration ...

    Selecting tire chains
    Use the correct tire chain size when mounting the tire chains. Chain size is regulated for each tire size. Side chain (0.12 in. [3 mm] in diameter) Side chain (0.39 in. [10 mm] in width) Side chain (1.18 in. [30 mm] in length) Cross chain (0.16 in. [4 mm] in diameter) Cross chain (0.55 i ...

    Inspection procedure
    1 Check ignition or starter switch assy Check the ignition switch, as shown in the illustration and table. Standard: 2 Check fuse (ecu–b) Remove the fuse from the instrument panel j/b.  check the continuity of the fuse. Standard: continuity 3 Check relay (m ...