Wiper & washer

Inspection

26steps
~156min
4/5difficulty
Done 0 of 26
1. Windshield wiper switch assy
Toyota Corolla. Windshield wiper switch assy
  1. Continuity check
  2. 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
  2. connect the voltmeter (+) terminal to terminal 7 (+1) of the connector, the voltmeter (–) terminal to terminal 5 (ew) of the connector.
  3. Connect the battery (+) to terminal 8 (+b) of the connector, the battery (–) to terminal 5 (ew) and 6 (+s) of the connector.
  4. Turn the wiper switch to the int position.
  5. Connect the battery (+) to terminal 6 (+s) of the connector for 5 seconds.
  6. 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).

    Toyota Corolla. Windshield wiper switch assy
  7. W/ intermittent time adjust: intermittent operation check
  8. connect the voltmeter (+) terminal to terminal 7 (+1) of the connector, the voltmeter (–) terminal to terminal 5 (ew) of the connector.
  9. Connect the battery (+) to terminal 8 (+b) of the connector, the battery (–) to terminal 5 (ew) and 6 (+s) of the connector.
  10. Turn the wiper switch to the int position.
  11. Connect the battery (+) to terminal 6 (+s) of the connector for 5 seconds.
  12. 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).

    Toyota Corolla. Windshield wiper switch assy
    Toyota Corolla. Windshield wiper switch assy
  13. Operation check (washer switch)
  14. turn the wiper switch to the off position.
  15. Connect the battery (+) to terminal 8 (+b) of the connector, the battery (–) to terminal 6 (+s) and 5 (ew) of the connecter.
  16. 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
Toyota Corolla. Windshield wiper motor assy
  1. Lo operation check
  2. 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).
  3. hi operation check
  4. 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).
  5. automatic stop operation check
  6. 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.

  7. 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

    Toyota Corolla. Windshield wiper motor assy
  8. Check that the automatic stop position is correct.

    Standard: see the illustration.

Test yourself

A quick Toyota Corolla quiz: every answer comes with an explanation and a link to the manual page.