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I spent some time today marveling at my X5's ability to read minds, as I was reading its codes and checking fuses. A few days ago I was reading some posts about the Trifecta, and thought that I had been quite lucky so far in not having to deal with this PITA. Two days later as I'm driving my wife to pick up her Jeep from the shop...you guessed it, the Trifecta appeared.
DSC, ABS and Red Brake lights, dead cluster with the addition of the temp guage maxed out (hot), and an intermittant Transmission Failsafe message. The car is clearly locked in 3rd, or 4th, but otherwise running and able to get to the shop to get my wifes car, and get me home. An assortment of codes that all seem to point to a failed DSC/ABS module. In fact it wasn't even communicating on the bus at the time.
Today it kept popping a "brief power interruption" code in that module and the other usual suspects (wheel speed sensors and steering angle sensor) that seem to go along with a red brake light (from my reading on this forum), all test fine. The pumps tested OK too via my foxwell.
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Current
Original owner 2002 E53 X5 4.4i to 4.6i swap
2025 G06 X5 50e
Former
1972 Audi Fox
1986 Saab 900S
1996 BMW Z3
1998 BMW E36 M3 Sedan
2004 BMW E46 M3
2006 Audi A3 Quatro
1993 Mopar 318 Jeep Grand Cherokee
2015 V6 Jeep Grand Cherokee
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