Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

SYS.OK|MANUAL.DB● LIVE

HOMESERVICE MANUALSPLYMOUTH1984HORIZON BASE, 1.6 AREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 46 (WIPER/WASHER SYSTEMS - SEDAN)TESTING2-SPEED FUNCTION TESTSMOTOR RUNS SLOWLY IN ALL SWITCH POSITIONS

1984 Plymouth Horizon Base, 1.6 A

Motor Runs Slowly In All Switch Positions

1984 Plymouth Horizon Base, 1.6 ASECTION Motor Runs Slowly In All Switch Positions

WARNING: This page is about a different car, the 1994 Plymouth Acclaim, 1994 Dodge Spirit, and 1994 Chrysler LeBaron. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect wiring connector at motor. Remove wiper arms. Connect ammeter between battery and motor terminal No. 3. See Fig 1 . Ensure motor is properly grounded.
If motor operates and average current flow is more than 6 amps, check wiper linkage and pivots for binding. Disconnect drive link from motor. If motor now runs and draws less than 3 amps, repair linkage and pivots. If motor runs and draws more than 3 amps, replace motor.
Check motor wiring harness for short between high and low speed circuits. Set wiper switch to LOW position. Check for voltage between motor ground strap and wiper motor connector terminal No. 4 of wiring harness. See Fig 2 .
If voltage exists, a short exists in wiring or switch. If voltage does not exist, set wiper switch to HIGH position. Check for voltage between motor ground strap and wiper motor connector terminal No. 3 of wiring harness. If voltage exists, a short exists in wiring or switch.

Fig 1: Checking Current Flow Between Terminal No. 3 & Battery

Courtesy of CHRYSLER CORP.

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready Tools Free Quote Check Quote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.