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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    Replacement
    Hint: components:  1. Remove front wheel 2. Remove front axle hub lh nut  sst 09930–00010 3. Separate front stabilizer link assy lh 4. Separate speed sensor front lh (w/ abs) 5. Separate front disc brake caliper assy lh Remove the 2 bolts, separate the brake caliper assy ...

    Valve clearance
    Adjustment 1. Remove cylinder head cover no.2 Remove the 2 nuts, 2 clips and cylinder head cover. 2. Disconnect engine wire Remove the 5 clamps from the 5 clamp brackets. Disconnect the 4 ignition coil connectors. Remove the bolt and nut installing the engine wire ...

    Inspection procedure
    Hint: perform the troubleshooting of dtc p0335 first. If no trouble is found, troubleshoot the engine mechanical systems. Read freeze frame data using the hand-held tester or the obd ii scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When tr ...