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P1790 Diagnostic Trouble Code Discussion for May 2011

Fault Immediately After Shift

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Trouble Ticket Help Requests for DTC P1790
Help Request Posted
2004 Jeep Grand Cherokee Special Edition 4.7L ABS Light, Speedo VIN: 1J4GX48N44
P1790: Fault Immediately After Shift. When driving down the road intermittently the ABS light will illuminate and the speedometer will die (go to zero). The speedo will come back to life but the ABS light will stay on until the ignition is cycled. Pulled codes 24 system undervoltage and 26 bus com...
May 05, 2011