Toyota Corolla (E120): Circuit description

The key unlock warning switch comes on when the ignition key is inserted in the key cylinder and goes off when the ignition key is removed.

Wiring diagram

Inspection procedure

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    How to proceed with troubleshooting
    1 Vehicle brought to workshop 2 Customer problem analysis 3 Check and clear dtc 4 Problem symptom confirmation Symptom does not occur (go to step 5) 5 Symptom simulation 6 Dtc check 7 Dtc chart 8 Problem symptoms table 9 Circuit inspection 10 Confirmation test End ...

    Front suspension arm sub–assy lower no.1 Lh
    Replacement Hint: components: 1. Remove front wheel 2. Disconnect front stabilizer link assy lh (lh (a/t) position) 3. Disconnect front stabilizer link assy rh (lh (a/t) position) Hint: remove the rh side by the same procedures as the lh side. 4. Separate front suspension arm sub–assy lowe ...

    Engine assembly
    Inspection 1. Inspect coolant 2. Inspect engine oil 3. Inspect battery 4. Inspect air cleaner filter element sub–assy 5. Inspect spark plug 6. Inspect fan and generator v belt Hint: you don’t need to check the belt deflection because auto tensioner is adopted. 7. Inspect ignition ti ...