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P1296 Diagnostic Trouble Code Discussion for January 2010

5-Volt VREF Supply Not Present

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Trouble Ticket Help Requests for DTC P1296
Help Request Posted
1996 Jeep Grand Cherokee Limited 5.2L Poor Idle Quality, Hesitation, Cuts out, Stall, MIL Lamp on VIN: 1J4GZ78Y9T
P1296: 5-Volt VREF Supply Not Present. ... problem. We have a 1996 Grand Cherokee that will start losing power, running rough, and missing like a rich condition. The check engine light comes on with a code 14 with definition of loss of 5v reference voltage to map sensor. Have tried to monitor refre...
January 20, 2010