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HOMESERVICE MANUALSDODGE AND RAM1999DAKOTA SLT, 2D PICKUP, 3.9 X, 4WD, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMEBODY, CAB CONTROL SYSTEMSBODY CONTROL COMPUTERAUDIO SYSTEMNO SOUND FROM ONE SPEAKER
1999 Dodge and Ram Dakota SLT, 2D Pickup, 3.9 X, 4WD, Standard

No Sound From One Speaker

1999 Dodge and Ram Dakota SLT, 2D Pickup, 3.9 X, 4WD, StandardSECTION No Sound From One Speaker
NOTE: For connector terminal identification and wiring diagrams, see BODY CONTROL COMPUTER - INTRODUCTION article. Perform VERIFICATION TEST VER-1A  after each repair.
  1. Using scan tool, read DTCs. If scan tool displays a specific shorted channel, go to that channel test. If scan tool does not display a specific shorted channel, go to next step.
  2. If inoperative speaker is a pillar speaker, go to next step. If inoperative speaker is not a pillar speaker, go to step  5 .
  3. Ensure radio is off. Disconnect inoperative pillar and lower speaker from same side. Using an external ohmmeter, measure resistance between inoperative pillar (-) terminal and lower speaker (-) terminal. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open speaker (-) circuit.
  4. Measure resistance between inoperative pillar (+) terminal and lower speaker (+) terminal. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open speaker (+) circuit.
  5. Turn radio on. Disconnect inoperative speaker connector terminals. Using an external voltmeter, measure voltage between ground and inoperative speaker (+) terminal. If voltage is about 6 volts, go to next step. If voltage is not about 6 volts, go to step  8 .
  6. Measure voltage between ground and inoperative speaker (-) terminal. If voltage is about 6 volts, replace speaker. If voltage is not about 6 volts, go to next step.
  7. Gain access to amplifier 14-pin connector C1. Do not disconnect connector. Measure voltage between ground and backprobe amplifier 14-pin connector C1 inoperative speaker ground circuit. See IDENTIFYING AMPLIFIER SPEAKER CIRCUITS  table. If voltage is about 6 volts, repair open speaker (-) circuit. If voltage is not about 6 volts, replace amplifier.
    IDENTIFYING AMPLIFIER SPEAKER CIRCUITS

    Circuit Terminal No. Wire Color
    Left Front (-) 1 Brown/Red
    Left Rear (-) 8 Brown/Light Blue
    Right Front (-) 2 Light Blue/Red
    Right Rear (-) 3 Dark Blue/Orange
    Left Front (+) 5 Dark Green
    Left Rear (+) 7 Brown/Yellow
    Right Front (+) 6 Violet
    Right Rear (+) 9 Dark Blue/White
  8. Ensure radio is on. Gain access to amplifier 14-pin connector C1. Do not disconnect connector. Measure voltage between ground and backprobe amplifier 14-pin connector C1 inoperative speaker (+) circuit. See IDENTIFYING AMPLIFIER SPEAKER CIRCUITS  table. If voltage is about 6 volts, repair open speaker (+) circuit. If voltage is not about 6 volts, replace amplifier.
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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.