Conditions for Setting the DTC
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DTC P1688 sets if unmanaged engine torque, gross, signal is less than 1.5 percent or greater than 98.5 percent for greater than a 2 seconds.
DTC P1688 sets if unmanaged engine torque, gross, signal is less than 1.5 percent or greater than 98.5 percent for greater than a 2 seconds.