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Wiper Switch: Testing and Inspection

INSPECTION

Inspect the continuity between each connector terminal.






If continuity is not as specified, replace the switch.

FRONT WIPER

1. Check with Subaru Select Monitor When the front wiper switch is operated, check the input signal using the Subaru Select Monitor.
1. Prepare the Subaru Select Monitor kit.
2. Turn the ignition switch to ON.
3. On the "System Selection Menu" display screen, select the {Integ. unit mode}.
4. Select the {Current Data Display & Save}.
5. Check the input signal when the front wiper switch is set to LO or HI.






2. Check the intermittent operation (inspection of the wiper switch alone)
1. Set the voltage meter between terminal No. 7 (+) and No. 2 (-).
2. Connect the battery to the connector. (Terminal No. 17 (+), terminal No. 2 & 16 (-))
3. Turn the front wiper switch to INT.
4. Connect the battery (+) to the terminal No. 16 for 5 seconds.
5. Connect the battery (-) to the terminal No. 16, and check the voltage between terminal No. 7-No. 2 when performing the intermittent operation.
6. Perform step 1) to 5) when intermittent control switch is in MIN or MAX. If operation is not as specified, replace the switch.

Intermittent stationary time
MIN: Approx. 4 seconds
MAX: Approx. 19 seconds






REAR WIPER

1. Check with Subaru Select Monitor






2. Check rear wiper motor circuit