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.
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HOMESERVICE MANUALSPLYMOUTH1984HORIZON BASE, 1.6 AREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 36 (ANTI-LOCK BRAKE SYSTEM)DIAGNOSIS & TESTINGSYSTEM PRECAUTIONS
1984 Plymouth Horizon Base, 1.6 A
System Precautions
1984 Plymouth Horizon Base, 1.6 ASECTION System Precautions
WARNING: This page is about a different car, the 1994 Eagle Vision, 1994 Dodge Intrepid, 1994 Chrysler New Yorker, 1994 Chrysler LHS, and 1994 Chrysler Concorde. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
See ANTI-LOCK BRAKE SAFETY PRECAUTIONS
article in GENERAL INFORMATION.
Before proceeding with diagnosis, read and observe following precautions:
- Ensure battery is fully charged and charging system is functional.
- Probe Controller Anti-Lock Brake (CAB) connector from pin side. DO NOT backprobe CAB connector. Probe connector terminal carefully. DO NOT spread terminal, as this could cause intermittent problem.
- DO NOT cause short circuits when performing electrical tests. This will set additional fault messages, making diagnosis of original problem more difficult.
- DO NOT unplug or plug CAB connector with ignition on.
- Use DRB voltmeter unless instructed to use external voltmeter.
- DO NOT use test light in place of voltmeter.
- Use DRB ohmmeter unless instructed to use external ohmmeter.
- Always perform TEST VER-1A under SELF-DIAGNOSTIC TESTS.
- Always disconnect DRB when done.
- Always disconnect DRB before charging battery.
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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.