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HOMESERVICE MANUALSPLYMOUTH1984HORIZON BASE, 1.6 AREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 20 (ENGINE CONTROLS - TESTS W/CODES - BODY CONTROL COMPUTER)SELF-DIAGNOSTIC TESTSTEST 15D - TESTING OTIS MILEAGE & DISTANCE FUNCTIONS
1984 Plymouth Horizon Base, 1.6 A

Test 15D - Testing OTIS Mileage & Distance Functions

1984 Plymouth Horizon Base, 1.6 ASECTION Test 15D - Testing OTIS Mileage & Distance Functions
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.
NOTE: For connector terminal identification, see CONNECTOR IDENTIFICATION  . For wiring diagrams, see WIRING DIAGRAMS  . Perform TEST VER-1 after each repair.
  1. Using DRB, read engine controller faults. If DRB displays NO VEHICLE SPEED SENSOR SIGNAL, see TESTS W/CODES - 3.3L in the ENGINE PERFORMANCE section. If DRB does not display NO VEHICLE SPEED SENSOR SIGNAL, go to next step.
  2. If DRB displays THROTTLE POSITION SENSOR VOLTAGE HIGH, see appropriate TESTS W/CODES article in ENGINE PERFORMANCE section below. If DRB does not display THROTTLE POSITION SENSOR VOLTAGE HIGH, go to next step.
  3. If DRB displays THROTTLE POSITION SENSOR VOLTAGE LOW, see appropriate TESTS W/CODES article in ENGINE PERFORMANCE section below. If DRB does not display THROTTLE POSITION SENSOR VOLTAGE LOW, replace body control module.
RENDER: 1.0x

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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.