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Home >> Oldsmobile >> 1984 >> Toronado 4.1 4 >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel - Electronic >> Testing >> No Turn Signals

No Turn Signals

  1. Remove left front speaker cover. Disconnect negative battery cable. Unplug cluster harness connector. Connect negative battery cable. Turn ignition on. Turn left turn signal on.
  2. Using digital voltmeter, check reading between pins K (Light Blue wire) and T (Black wire) of cluster harness connector. Voltmeter should cycle between 0 and battery voltage.
  3. Turn right turn signal on. Same voltage readings should be obtained between pins J (Dark Blue/White wire) and T (Black wire). If voltages are good, replace cluster. If not good, check turn signal circuit.