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Home >> Jeep >> 2025 >> Grand Cherokee Altitude, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 51 (8P75PH Automatic Transmission - DTCS P0716-00 To P07E4-00) >> DTC Troubleshooting >> P0721-00 Output Shaft Speed Sensor Circuit Performance >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2025 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
INCORRECT VEHICLE CONFIGURATION
RELATED ENGINE SPEED DTCS PRESENT
RELATED WHEEL SPEED OR TIRE SIZE DTCS PRESENT
TRANSMISSION CONTROL MODULE (TCM) SOFTWARE
TRANSMISSION CONTROL MODULE (TCM) ASSEMBLY
TRANSMISSION INTERNAL FAILURE

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .