Toyota Corolla (E120): Circuit description

This circuit sends a signal to the cruise control ecu assy that dtc output is required.

Wiring diagram

Inspection procedure

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    Inspection procedure
    1 Check hazard warning signal switch assy Check the hazard warning switch continuity, as shown in the illustration and table. Standard: 2 Check turn signal flasher assy 3 Check wire harness (tvip ecu turn signal flasher) Disconnect the tvip ecu and turn signal flashe ...

    Amplifier antenna assy
    Replacement Hint: components: Remove roof headlining assy Notice: do not bend the roof headlining assy. Hint: refer to the procedure from ”remove roof headlining assy” of roof headlining assy. Remove the related parts as long as the amplifier antenna assy can be removed. ...

    Manual shifting test
    1. Perform manual shifting test Hint: by this test, it can be determined whether the trouble is within the electrical circuit or is a mechanical problem in the transaxle. Disconnect the transmission wire connector.  inspect the manual driving operation. Check that the shift and g ...