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P1596 Diagnostic Trouble Code Discussion for January 2009

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 4.0L Poor Idle Quality, MIL Lamp on VIN: 1JYGW5859X
P1596: Speed Control Switch Continuous High Input. ... have a Check engine light on with the po123 tps code and the p1596 Cruise switch code. I inherited this job from the tech across the shop, who replaced the tps, crank sensor and the clock spring with the same result.All genu...
January 27, 2009