Wiper Relay: Testing and Inspection

REAR WIPER RELAY INSPECTION







1. INSPECT RELAY CONTINUITY
a. Check that there is no continuity between terminals 3 and 4.
b. Check that there is continuity between terminals 4 and 5.

If continuity is not as specified. replace the relay.

2. INSPECT RELAY OPERATION







a. Connect the positive (+) lead from the battery to terminal 3 and the negative (-) lead to terminal 6.
b. Connect the positive (+) lead from the voltmeter to terminal 5 and the negative (-) lead to terminal 6, check that the meter needle indicates 0 volts.
c. Connect the positive (+) lead from the voltmeter to terminal 4 and the negative (-) lead to terminal 6. check that the meter needle indicates battery positive voltage.

If operation is not as specified. replace the relay.

3. INSPECT RELAY INTERMITTENT OPERATION







a. Connect the positive (+) lead from the battery to terminal 5 and the negative (-) lead to terminal 2 more than 2 seconds.
b. Connect the positive (+) lead from the voltmeter to terminal 4 and the negative (-) lead to terminal 2.
c. After disconnecting the positive (+) lead from terminal 5 connect it to terminal 3, and than, check that the meter needle rises from 0 volts to battery positive voltage within 9 to 15 seconds.