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P1596 Diagnostic Trouble Code Discussion for April 2006

Speed Control Switch Continuous High Voltage

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Trouble Ticket Help Requests for DTC P1596
Help Request Posted
1999 Jeep Grand Cherokee Laredo 4.7L MIL Lamp on VIN: 1J46W68N7X
P1596: Speed Control Switch Continuous High Input. Car came to us with SES Light on. Had it checked at Auto Zone, told TPS Sensor code. In the past year the customer has replaced TPS several times. Light comes back on after a few days. We cleared codes and immediately came back with PO123 code. We have tested ...
April 17, 2006