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P1685 Diagnostic Trouble Code Discussion for April 2007

Transmission Control Module Power Up Temperature Sensor Circuit Low

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Trouble Ticket Help Requests for DTC P1685
Help Request Posted
2001 Jeep Grand Cherokee Limited 4.7L Stall VIN: 1J4GW58N3Y
P1685: Smart Key Immobilizer Module Invalid Key. Ok guys, This jeep's computer had an injector driver issue. So I had a used one and I put it in it to see if it will fix it. After putting it in, the jeep will only start then die. So I quickly notice the Key light. After hooking my scanner up I realized I cou...
April 07, 2007