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Home >> Jeep >> 2015 >> Compass Limited, AWD, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 258 ((Transmission Control Module (TCM) - Electrical Diagnostics - Continuously Variable Transmission (CVT))) >> DTC Troubleshooting >> U1401-Implausible Engine Speed Signal Received >> Set Condition

Set Condition

WARNING: This page is about a different car, the 2013 Jeep Patriot and 2013 Jeep Compass. However, it is still accessible from the selected car via links, so may be relevant.

Condition one:  the below conditions must be present for the period of 5 seconds for the DTC to set:

Engine speed minus Input speed is greater than 1000 rpm for the period of 5 seconds.

Engine speed minus Secondary speed estimated ratio is greater than 1000 rpm for the period of 5 seconds.

Secondary speed multiplied by the estimated ratio minus the primary speed is less than 1000 rpm.

Condition two:  Engine speed is less than 450 rpm and the Input speed is greater than or equal to 1000 rpm for the period of 20 msec.

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