Toyota Corolla (E120): Light control switch circuit

Wiring diagram

Inspection procedure

Inspection procedure

1 Check headlamp dimmer switch assy (light control switch)

2 Check wire harness (tvip ecu  light control switch)

2 Check wire harness (tvip ecu  light control switch)

  1. Disconnect the tvip ecu and light control switch connectors.
  2.  check the continuity between the terminals of the tvip ecu and light control switch connectors, as shown in the illustration and table.

Standard:

3 Check wire harness (light control switch  body ground)

3 Check wire harness (light control switch  body ground)

  1. Disconnect the light control switch connector.
  2. check the continuity between the terminal of the light control switch connector and the body ground, as shown in the illustration and table.

Standard:

Proceed to next circuit inspection shown on problem symptoms table

Proceed to next circuit inspection shown on problem symptoms table

    Share this page:

    Other materials:

    Disposal
    1. Dispose shock absorber assy front lh  fully extend the shock absorber piston rod.  using a drill, make a hole in the cylinder as shown in the illustration to discharge the gas inside. Caution: when drilling, chips may fly out, work carefully. The gas is colorless, o ...

    Replacement
    1. Remove radiator grille sub–assy 2. Remove front bumper cover 3. Remove fog lamp assy lh Remove a nut and release a claw.  remove the fog light assy lh. 4. Put vehicle these conditions 5. Adjust fog light aim 6. Check fog light aim ...

    Inspection procedure
    Hint: 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 troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the ...