Incorrect Torque Converter Clutch Apply or Release. GMC Truck Yukon XL

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2001 🢒 Yukon XL - 4WD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L80-E 🢒 Incorrect Torque Converter Clutch Apply or Release

Checks

Cause

AT Output Shaft Speed Sensor Assembly (22)

•	Poor connection

•	Pinched wire

•	A broken coil wire

•	Incorrect air gap

•	Inadequate signal

Throttle Position Sensor

•	Poor connection

•	Pinched wire

•	Incorrect resistance

PCM

Failed

Automatic Transmission Fluid Pressure Manual Valve Position Switch (40)

•	Poor connection

•	No signal to the PCM

•	Pinched wire

AT Fluid Temperature Sensor Assembly (332)

•	Poor connection

•	No signal to the PCM

•	Incorrect resistance

•	Pinched wire

Engine Coolant

No signal to the PCM

Brake Switch

•	Poor connection

•	Pinched wire

•	No voltage supply

•	Misadjusted

Engine Ignition Module

Loss of signal or intermittent

Check the PCM for current DTCs.

Only 2WD