Toyota Corolla (E120): Inspection

1. Windshield wiper switch assy

  1. Continuity check
  1.  check the continuity of each terminal of the connector.

    Front wiper switch

Standard:

Front washer switch

Front washer switch

Standard:

  1. W/o intermittent time adjust: intermittent operation check
  1.  connect the voltmeter (+) terminal to terminal 7 (+1) of the connector, the voltmeter (–) terminal to terminal 5 (ew) of the connector.
  2.  Connect the battery (+) to terminal 8 (+b) of the connector, the battery (–) to terminal 5 (ew) and 6 (+s) of the connector.
  3.  Turn the wiper switch to the int position.
  4.  Connect the battery (+) to terminal 6 (+s) of the connector for 5 seconds.
  5.  Connect the battery (–) to terminal 6 (+s) of the connector.

    Operate the intermittent wiper relay and check voltage between terminal 7 (+1) and terminal 5 (ew).

  1. W/ intermittent time adjust: intermittent operation check
  1.  connect the voltmeter (+) terminal to terminal 7 (+1) of the connector, the voltmeter (–) terminal to terminal 5 (ew) of the connector.
  2.  Connect the battery (+) to terminal 8 (+b) of the connector, the battery (–) to terminal 5 (ew) and 6 (+s) of the connector.
  3.  Turn the wiper switch to the int position.
  4.  Connect the battery (+) to terminal 6 (+s) of the connector for 5 seconds.
  5.  Connect the battery (–) to terminal 6 (+s) of the connector.

    Operate the intermittent wiper relay and check voltage between terminal 7 (+1) and terminal 5 (ew).

  1. Operation check (washer switch)
  1.  turn the wiper switch to the off position.
  2.  Connect the battery (+) to terminal 8 (+b) of the connector, the battery (–) to terminal 6 (+s) and 5 (ew) of the connecter.
  3.  Connect the voltmeter (+) terminal to terminal 7 (+1) of the connector, the voltmeter (–) terminal to terminal 5 (ew) of the connector. Turn the washer switch to on and off and check voltage between terminal 7 (+1) and terminal 5 (ew).

    Standard: see the illustration.

2. Windshield wiper motor assy

  1. Lo operation check
  1.  connect the battery (+) to terminal 1 (+1) of the connector, the battery (–) to terminal 5 (e) of the connector, and check that the motor operates at low speed (lo).
  1.  hi operation check
  1.  connect the battery (+) to terminal 4 (+2) of the connector, the battery (–) to terminal 5 (e) of the connector, and check that the motor operates at high speed (hi).
  1. automatic stop operation check
  1.  connect the battery (+) to terminal 1 (+1) of the connector, the battery (–) to terminal 5 (e) of the connector.

    With the motor being rotated at low speed (lo), disconnect terminal 1 (+1) to stop the wiper motor operation at any position except the automatic stop position.

  2.  Connect terminal 1 (+1) and 3 (s), and the battery (+) to terminal 2 (b) to restart the motor operation at low speed.

    Sst 09843–18040

  1. Check that the automatic stop position is correct.

    Standard: see the illustration.

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