Toyota Corolla (E120) 2002–2008 Repair Manual / Wiper & washer / Wiper and washer system / Inspection

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

Standard:

2. 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).

3. 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).

4. 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).

2.  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).

3. 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

3. Check that the automatic stop position is correct.

   Standard: see the illustration.