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Home >> GMC >> 1991 >> Value Van 7.4 N >> Repair and Diagnosis >> External Pages >> Different car >> Section 82 (Engine Controls - Tests W/Codes - Body Control Computer) >> Self-Diagnostic Tests >> Test 88A - No Sound From One Speaker

Test 88A - No Sound From One Speaker

WARNING: This page is about a different car, the 1995 Plymouth Voyager, 1995 Plymouth Grand Voyager, 1995 Dodge Grand Caravan, 1995 Dodge Caravan, and 1995 Chrysler Town & Country. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Always turn ignition off prior to disconnecting any module connector.
NOTE: For connector terminal identification, see CONNECTOR IDENTIFICATION  . For appropriate wiring diagram, see WIRING DIAGRAMS  section at the end of this article. Perform TEST VER-1B after each repair.
NOTE: Radio must remain on during this test.
  1. Turn radio on. If inoperative speaker is not a door speaker, go to step 4). If an instrument panel speaker is also inoperative, go to TEST 88B. If a door speaker is inoperative, disconnect inoperative door speaker connector and go to next step.
  2. Using scan tool in voltmeter mode, check voltage on inoperative speaker connector terminal No. 3 (Dark Green wire on left door speaker; Violet wire on right door speaker). If voltage is less than 5 volts, repair open Dark Green wire or Violet wire. If voltage is more than 5 volts, go to next step.
  3. Check voltage on inoperative speaker connector terminal No. 2 (Brown/Red wire on left door speaker; Dark Blue/White wire on right door speaker). If voltage is less than 5 volts, repair open Brown/Red wire or Dark Blue/White wire. If voltage is more than 5 volts, replace speaker.
  4. If inoperative speaker is a rear speaker, go to step 7). If inoperative speaker is an Instrument Panel (IP) speaker, disconnect inoperative speaker connector. Go to next step.
  5. Using scan tool in voltmeter mode, check voltage on inoperative speaker connector terminal No. 2 (Dark Green wire on left IP speaker; Violet wire on right IP speaker). If voltage is less than 5 volts, repair open Dark Green wire or Violet wire. If voltage is more than 5 volts, go to next step.
  6. Check voltage on inoperative speaker connector terminal No. 1 (Brown/Red wire on left IP speaker; Dark Blue/White wire on right IP speaker). If voltage is less than 5 volts, repair open Brown/Red wire or Dark Blue/White wire. If voltage is more than 5 volts, replace speaker.
  7. Disconnect inoperative rear speaker. Using scan tool in voltmeter mode, check voltage on inoperative speaker connector terminal No. 3 (Brown/Yellow wire on left rear speaker; Dark Blue/White wire on right rear speaker). If voltage is less than 5 volts, repair open Brown/Yellow wire or Dark Blue/White wire. If voltage is more than 5 volts, go to next step.
  8. Check voltage on inoperative speaker connector terminal No. 2 (Brown/Light Blue wire on left rear speaker; Dark Blue/Orange wire on right rear speaker). If voltage is less than 5 volts, repair open Brown/Light Blue wire or Dark Blue/Orange wire. If voltage is more than 5 volts, replace speaker.
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