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 27 (ANTI-LOCK BRAKE SYSTEM)DIAGNOSIS & TESTINGDRB TEST FUNCTIONSABS MODE
1984 Plymouth Horizon Base, 1.6 A
ABS Mode
1984 Plymouth Horizon Base, 1.6 ASECTION ABS Mode
WARNING: This page is about a different car, the 1994 Plymouth Sundance, 1994 Plymouth Acclaim, 1994 Dodge Spirit, 1994 Dodge Shadow, and 1994 Chrysler LeBaron. However, it is still accessible from the selected car via links, so may be relevant.
- To perform ABS self-diagnostic tests, DRB must be in ABS mode. Access DRB main menu. See ENTERING DRB MAIN MENU.
- At DRB main menu, press "4" (SELECT SYSTEM) key to enter diagnostic test program. Press DOWN ARROW 3 times to change menu display.
- Press "5" (ABS) key to enter ABS mode of DRB program. ABS menu will appear after a few seconds. Select ABS type. Screen will display a partial menu of DRB test categories for ABS. Press DOWN ARROW 3 times to view rest of menu.
- Following test functions can be accessed from ABS menu: SYSTEM TESTS, READ FAULTS, STATE DISPLAY, ACTUATOR TESTS and ADJUSTMENTS.
- SYSTEM TESTS: This function is not available in ABS diagnostic program.
- READ FAULTS: This function allows user to read fault messages.
- STATE DISPLAY: This function allows user to read states or values of a variety of sensors, inputs/outputs and components.
- ACTUATOR TESTS: This function allows user to activate various outputs, valves and hydraulics to verify proper operation.
- ADJUSTMENTS: This function allows user to erase fault messages.
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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.