2003 Jeep Grand Cherokee engine light code P0123

Question

Light comes on for a couple days them off for a week or so, then back on, etc. Is there an easy fix for this?

Answer 1

P0123 Throttle position sensor #1 voltage high

Voltage high are mostly poor mating connection or open wire or harness, , you may have just that a poor connection. Here is a BMW with a circuit high code for the throttle motor that went into limp mode, The easy fix use of zip ties.