Cutlass V6-191 3.1L VIN M SFI (1998)
Turn Signal Switch: Testing and Inspection
Important: This diagnosis covers mechanical problems only.
TURN SIGNAL WILL NOT STAY IN TURN POSITION
Inspect:
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Damaged turn signal switch.
TURN SIGNAL WILL NOT CANCEL
Inspect:
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Loose turn signal switch mounting screw.
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Broken turn signal switch.
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Damaged canceling cam.
TURN SIGNAL DIFFICULT TO OPERATE
Inspect:
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Damaged turn signal switch.
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Loose turn signal switch mounting screw.
TURN SIGNAL WILL NOT INDICATE LANE CHANGE
Inspect:
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Damaged turn signal switch.
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Pinched turn signal switch wires.
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Burned out turn indicator panel lights.
NO TURN SIGNAL LIGHTS
Inspect:
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Damaged turn signal bulbs.
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Electrical short in wiring harness.
^
Inoperative turn signal flasher.
^
Loose turn signal switch connector.
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Damaged turn signal switch.
TURN INDICATOR LIGHTS ON, BUT NOT FLASHING
Inspect:
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Bulb burnt out, either in front or back or side of vehicle.
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Inoperative turn signal flasher.
^
Inoperative turn signal switch.
TURN INDICATOR LIGHTS OFF AND NOT FLASHING
Inspect:
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Damaged turn signal switch.
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Burned out or damaged turn signal bulb.
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High resistance connection to ground at bulb socket.
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Loose turn signal switch connector.
^
Faulty turn signal flasher.
NO TURN INDICATOR PANEL LIGHTS
Inspect:
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Burned out bulbs or opens, grounds in the wiring harness from the front turn signal bulb socket to the indicator lights.
TURN SIGNAL LIGHTS FLASH VERY RAPIDLY OR VERY SLOWLY
Inspect:
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Burned out or damaged turn signal bulbs.
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Loose turn signal connection.
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Faulty turn signal flasher.
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Pinched or grounded wiring harness.