S10/T10 P/U 2WD L4-137 2.2L DSL (1984)
Fig. 14 Connections to operate round wiper motor independent of vehicle wiring
INTERMITTENT OPERATION
1.
Check solder connections at wiper terminal board.
2.
Connect wiper to operate in ``LO'' speed, Fig. 14. Connect ammeter (range 0---30 amps) in feed wire circuit to wiper and observe current draw.
Allow motor to run until it becomes hot. Current draw should be 3.5---4.0 amps. If not within specifications, motor is defective.