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Home >> Jeep >> 2011 >> Compass Base, 2.0 A, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 73 ((Transmission Control Module (TCM) Electrical Diagnostics - CVT Automatic Transmission) - MK) >> DTC Troubleshooting >> P0721 - Output Speed Sensor Circuit Performance >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2017 Jeep Patriot and 2017 Jeep Compass. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
ENGINE CAM OR CRANK DTCS PRESENT
DIRTY OR DAMAGED OUTPUT SPEED SENSOR
(T16) TRANSMISSION CONTROL OUTPUT CIRCUIT HIGH RESISTANCE
(T52) OUTPUT SPEED SENSOR SIGNAL CIRCUIT HIGH RESISTANCE
(T52) OUTPUT SPEED SENSOR SIGNAL CIRCUIT SHORT TO VOLTAGE
(T130) OUTPUT SPEED SENSOR GROUND CIRCUIT HIGH RESISTANCE
(T130) OUTPUT SPEED SENSOR GROUND CIRCUIT SHORT TO VOLTAGE
OUTPUT SPEED SENSOR
TORQUE CONVERTER CLUTCH
TRANSMISSION CONTROL MODULE

Always perform the CVT Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  CVT TCM - PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE   .