Michel,
Try this test. Separate the nylon connector that connects the hazard switch to the car's wiring harness. On the "car" half of the connector, put a jumper wire between the RED and the YELLOW wires (NOT the yellow / black).
Turn the key on to the run position and try the turn signals. This test completely removes the hazard switch from the equation, and allows you to test the turn signal circuit.
John
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