Wiper Motor Current Draw Test

Fig. 3 Windshield wiper motor current draw test connections. Non-depressed park motor exc. Tempo & Topaz:

Non-Depressed Park Type & 1982---87 Lincoln Continental & 1983---87 Cougar & Thunderbird
1. Disconnect wiper linkage from output arm and electrical connector from motor.
2. Connect negative lead from ammeter to battery positive post, and alternately connect positive lead from meter to high and low speed terminals on motor, Fig. 3.
3. Motor should run in both test positions, and should indicate 3.0 amp draw or less on non-depressed park motor, and 3.5 amp draw or less on depressed park motor.
4. If current draw exceeds specifications in either test position, repair or replace motor.

Fig. 5 Windshield wiper motor current draw test connections. Depressed park motor exc. 1982---87 Lincoln Continental & 1983---87 Cougar, Thunderbird & 1984---86 Mark VII:

Depressed Park Type Exc. 1982---87 Lincoln Continental & 1983---87 Cougar & Thunderbird
Motor terminals may be too small to make necessary test connections. If necessary use jumper wires with suitable connector sleeves between motor and test equipment.
1. Disconnect wiper linkage from output arm and electrical connectors from motor.
2. Connect positive ammeter lead to common terminal on connector and connect negative meter lead to battery positive post, Fig. 5.
3. Alternately connect negative battery terminal to high and low speed terminals in connector using a jumper wire.
4. Motor should run in both test positions, and meter should indicate 3.5 amp draw or less.
5. If current draw exceeds 3.5 amps, check output arm and windlatch assembly. If output arm assembly is satisfactory, repair or replace motor.