For 1990-2009 cars

COMPLAINT/ CONDITION | POSSIBLE CAUSE(S) | CORRECTION(S)
--- | --- | ---
High or low line pressure | High or low oil level | Add or remove the oil as required.
Transaxle wiring harness is loose, has damaged pins, or is contaminated. | Inspect the transaxle wiring harness connector, and repair/replace as necessary.
Damaged, sticking, or disconnected throttle position sensor | Inspect the throttle position sensor and harness, and repair/replace as necessary.
Throttle position sensor has an intermittent open or a shorted circuit. | Use a scan tool to check for an intermittent open or short in the TP sensor circuit by monitoring the TP SENSOR while moving the throttle from 0-100 percent. The voltage should change smoothly.
Clogged or restricted oil cooler lines | Inspect the oil cooler lines, and repair/replace as necessary.
Leaking cooler pipe seals | Replace the cooler pipe seals.
Clogged, broken, or loose transaxle fluid filter assembly | Replace the fluid filter and fluid filter seal.
Leaking transaxle fluid filter seal | Replace the transaxle fluid filter and fluid filter seal.
Pressure control solenoid has damaged/leaking O-rings, or is contaminated. | Replace the pressure control solenoid.
Loose connector, or damaged pins on pressure control solenoid | Inspect the pressure control solenoid and harness, and repair/replace as necessary.
Damaged, sticking, porous, or leaking transaxle oil pump assembly | Inspect the transaxle oil pump assembly, and replace as necessary.
Damaged oil pump drive shaft | Replace the oil pump drive shaft.
Damaged spring or missing checkball in pressure relief valve. | Replace the oil pump.
Pressure regulator valve stuck. | Inspect the pressure regulator valve, and replace as necessary.
Isolator and/or pressure regulator valve spring stuck. | Inspect the springs, and replace as necessary.
Stuck pressure regulator boost valve. | Inspect the pressure regulator boost valve, and replace as necessary.
Stuck torque signal regulator valve | Inspect the torque signal regulator valve, and replace as necessary.
Porosity, leaking circuits or uneven surface finish in transaxle case (51) | Inspect the transaxle case, and replace as necessary.
Porosity, leaking circuits or uneven surface finish in control valve body assembly | Inspect the control valve body assembly, and replace as necessary.
Porosity, leaking circuits or uneven surface finish in channel plate | Inspect the channel plate, and repair/replace as necessary.
Inaccurate/inconsistent shift points | Damaged or disconnected throttle position sensor | Inspect the throttle position sensor and harness, and repair/replace as necessary.
Throttle position sensor has an intermittent open or a shorted circuit. | Use a scan tool to check for an intermittent open or short in the TP sensor circuit by monitoring the TP SENSOR while moving the throttle from 0-100 percent. Voltage should change smoothly.
Contamination of shift solenoids | Replace the shift solenoids.
Shift solenoids have an intermittent open or shorted circuit. | Inspect the harness and shift solenoids, and replace as necessary.
Damaged, disconnected, or loose output shaft speed and input shaft speed sensors | Inspect the harness and sensors, and replace as necessary.
Output or input shaft speed sensors have an intermittent open or a shorted circuit. | Replace the faulty sensor.
Line pressure high | Refer to High or Low line pressure.
Checkballs missing -- no orifice apply | Inspect the channel plate and insert the necessary checkballs.
Accumulator springs or accumulator pistons binding | Inspect the accumulators, and replace as necessary.
Accumulator valve stuck | Inspect the accumulator valves, and replace as necessary.
Reverse or direct clutch housing exhaust checkballs plugged. | Clean the housings and checkballs, and replace if necessary.
No reverse or slips in reverse | Fluid level low | Add transaxle fluid.
Fluid pressure low | Refer to High or Low Line Pressure.
Shift cable disconnected or misadjusted | Inspect the cable, and repair or readjust.
Lo/reverse band anchor pin broken | Replace the anchor pin.
Oil feed tube assembly broken, bent, or plugged | Inspect the oil feed tube assembly, and repair/replace as necessary.
Missing or leaking oil feed tube assembly seals | Replace the seals as needed.
Lo/reverse servo piston broken or binding | Inspect the lo/reverse servo piston, and repair/replace as necessary.
Lo/reverse servo piston seals leaking | Replace the piston/seal as necessary.
Servo pin and springs binding | Inspect the servo pin and springs, and repair/replace as necessary.
Lo/Reverse servo cover broken, loose, or leaking | Inspect the lo/reverse servo cover, and repair/replace as necessary.
#1 checkball missing, no low band fluid | Replace the #1 checkball.
Manual valve and manual valve to detent lever link disconnected or misaligned | Connect or realign the manual valve.
Possible porosity, fluid leak across channels, misalignment, damage, or fluid restriction in control valve body assembly, gaskets, and channel plate | Inspect the control valve body assembly, gaskets, and channel plate, and replace the faulty components.
Driven sprocket support seals leaking | Replace the seals.
Porosity, cracked, or misaligned driven sprocket support assembly | Inspect the driven sprocket support assembly, and replace as necessary.
Binding, cracked, or leaking reverse clutch piston assembly | Replace the reverse clutch piston assembly.
Plugged reverse clutch center retainer and seal assembly | Inspect the reverse clutch center retainer and seal assembly, and replace as necessary.
Worn friction material or broken splines on reverse clutch plates | Replace the fiber plates, and inspect the steel plates. Replace as necessary.
Reverse clutch snap ring out of position | Inspect/re-position the snap ring and housing, and replace the faulty components.
Reverse clutch housing is cracked, has plugged feed holes, or broken tangs | Inspect the reverse clutch housing, and repair/replace as necessary.
Reverse clutch housing exhaust checkball missing or out of position | Inspect the housing for checkball, and repair/replace as necessary.
Reverse clutch spring and retainer assembly binding | Inspect the spring assembly, and repair/replace as necessary.
Fluid leak or restriction in reverse clutch fluid routing | Check the reverse clutch circuit, and repair as necessary.
Lo/reverse band is binding, broken, worn, or out of position | Inspect the lo/reverse band, and repair/replace as necessary.
Transaxle case has porosity | Inspect the transaxle case, and replace as necessary.
No First Gear, Slips in First Gear. | Line pressure is low. | Refer to High or Low Line Pressure.
Oil feed tube assembly is bent, broken, or plugged. | Inspect to determine if flushing or replacement is needed.
Leaking oil feed tube assembly seals. | Replace the seal rings on the oil feed tubes.
Leaking drive switch O-ring on TFP manual valve position switch assembly. | Replace the O-ring.
1-2 shift solenoid failed OFF. | Replace the 1-2 shift solenoid.
Leaking 1-2 shift solenoid. | Inspect the 1-2 shift solenoid, and repair/replace as necessary.
1-2 shift valve stuck in upshifted position. | Inspect the 1-2 shift valve, and replace as necessary.
2-3 shift solenoid failed ON. | Replace the 2-3 shift solenoid.
Plugged exhaust from 2-3 shift solenoid. | Inspect the 2-3 shift solenoid, and repair/replace as necessary.
Channel plate and gasket have porosity, are misaligned, are loose or restricted, or have a fluid leak across the channels. | Inspect to determine if flushing, realignment, tightening, or replacement is needed.
Misalignment in manual valve. | Inspect the manual valve, and replace as necessary.
Misalignment in shift cable. | Realign the shift cable.
Binding, cracked, or leaking forward clutch piston assembly | Replace the forward clutch piston assembly.
Plugged forward clutch inner seal and sleeve assembly. | Inspect the forward clutch inner seal and sleeve assembly, and replace if needed.
Worn friction material or broken splines on forward clutch plates. | Replace the fiber plates, inspect the steel plates, and replace as necessary.
Forward clutch snap ring out of position. | Inspect/re-position the snap ring and housing, and replace faulty components.
Forward clutch housing cracked or has plugged feed holes. | Inspect the forward clutch housing, and repair/replace as necessary.
Forward clutch housing exhaust checkball is missing or out of position. | Inspect the forward clutch housing for the checkball, and repair/replace as necessary.
Forward clutch return spring assembly binding. | Inspect the spring assembly, and repair/replace as necessary.
Input sprag assembly damaged or not holding. | Replace the input sprag.
Lo roller clutch assembly damaged or not holding. | Replace the lo roller clutch.
Fluid leak or restriction in forward clutch fluid routing passages. | Check the forward clutch circuit, and repair/replace as necessary.
Porosity in forward clutch support assembly. | Replace the forward clutch support.
Leaking or damaged seal rings in forward clutch support assembly. | Replace the seal rings in the forward clutch support assembly.
Plugged feed holes in forward clutch support. | Flush the forward clutch support assembly.
Stator roller clutch is not holding in torque converter assembly. | Replace the torque converter.
No Second Gear, Slips in Second Gear. | Low line pressure. | Refer to High or Low Line Pressure.
Electrical or hydraulic malfunction in TFP manual valve position switch assembly. | Replace the TFP switch assembly.
1-2 shift solenoid stuck ON. | Replace the 1-2 shift solenoid.
1-2 shift solenoid plugged. | Clean or replace the 1-2 shift solenoid.
2-3 shift valve stuck in upshifted position. | Replace the 2-3 shift solenoid.
1-2 accumulator valve stuck. | Flush or replace the 1-2 accumulator.
Control valve body assembly has porosity, is misaligned, is loose or restricted, or has a fluid leak across channels. | Inspect the valve body to determine if flushing, realignment, tightening, or replacement is needed.
Gaskets and spacer plate have porosity, are misaligned, are loose or restricted, or have a fluid leak across channels. | Inspect the gaskets and spacer plate to determine if flushing, realignment, tightening, or replacement is needed.
Channel plate and gasket have porosity, are misaligned, are loose or restricted, or have a fluid leak across channels. | Inspect the channel plate and gasket to determine if flushing, realignment, tightening, or replacement is needed.
Driven sprocket support assembly has porosity, is misaligned, is loose or restricted, or has a fluid leak across channels. | Inspect the driven sprocket support to determine if flushing, realignment, tightening, or replacement is needed.
1-2 accumulator piston seal leaking. | Replace the 1-2 accumulator piston seal.
Channel plate or transaxle case porosity near 1-2 accumulator. | Inspect the channel plate and case for porosity, and replace as necessary.
Binding, cracked, or leaking second clutch piston assembly. | Replace the second clutch piston assembly.
Worn friction material or broken splines on second clutch plates. | Replace the fiber plates, inspect the steel plates, and replace as necessary.
Second clutch plate retaining ring out of position | Reposition the snap ring.
Second clutch spring assembly binding. | Inspect the spring assembly, and repair/replace as necessary.
Damaged, leaking, or porous driven sprocket support assembly. | Replace the driven sprocket support.
Fluid leak or restriction in second clutch fluid routing | Check the second clutch circuit, and repair/replace as necessary.
Second roller clutch assembly is broken, or not holding. | Replace the roller clutch.
Low oil level may cause slipping in second gear. | Add any necessary fluid.
No third gear, slips in third gear | Low line pressure | Refer to High or Low Line Pressure.
Malfunction, electrical or hydraulic, in TFP manual valve position switch assembly | Replace the TFP switch assembly.
2-3 shift solenoid stuck OFF | Replace the 2-3 shift solenoid.
2-3 shift solenoid leaking | Replace the 2-3 shift solenoid.
3-4 shift valve stuck in upshifted position | Replace the 3-4 shift valve.
2-3 accumulator piston seal leaking | Replace the piston seal.
Channel plate or case porosity near 2-3 accumulator | Inspect the channel plate and case for porosity, and replace as necessary.
Control valve body assembly has porosity, is misaligned, is loose or restricted, or has a fluid leak across channels. | Inspect the control valve body to determine if flushing, realignment, tightening, or replacement is needed.
Gaskets and spacer plate have porosity, are misaligned, are loose or restricted, or have a fluid leak across channels. | Inspect the gaskets and spacer plate to determine if flushing, realignment, tightening, or replacement is needed.
Channel plate and gasket have porosity, are misaligned, are loose or restricted, or have a fluid leak across channels. | Inspect the channel plate and gasket to determine if flushing, realignment, tightening, or replacement is needed.
Driven sprocket support assembly has porosity, is misaligned, is loose or restricted, or has a fluid leak across channels. | Inspect the driven sprocket support to determine if flushing, realignment, tightening, or replacement is needed.
Input shaft seals leaking | Replace the seals.
Damaged or misaligned sleeve on input shaft | Replace the input shaft.
Driven sprocket support seals leaking | Replace the seals.
Direct clutch piston assembly binding, cracked, or leaking | Replace the direct clutch piston assembly.
Worn friction material or broken splines on direct clutch plates | Replace the fiber plates, inspect the steel plates, and replace as necessary.
Direct clutch spring retainer ring out of position | Reposition the snap ring, and replace if necessary.
Direct clutch spring and retainer assembly | Realign or replace the spring.
Damaged or cracked direct and coast clutch housing | Replace the direct clutch housing.
Restricted feed holes in direct and coast clutch housing | Flush the direct clutch housing.
Direct and coast clutch and input shaft housing exhaust checkball for the direct clutch missing or out of position | Inspect the housing for checkball, and repair/replace as necessary.
Fluid leak or restriction in direct clutch fluid routing | Check the direct clutch circuit, and repair/replace as necessary.
Second gear only | 1-2 shift valve stuck in downshifted position | Inspect the 1-2 shift valve, and replace as necessary
No fourth gear, slips in fourth gear | Line pressure low | Refer to High or Low Line Pressure.
Malfunction, electrical or hydraulic, in TFP manual valve position switch | Replace the TFP switch assembly.
1-2 shift solenoid stuck OFF | Replace the 1-2 shift solenoid.
1-2 shift solenoid leaking | Inspect the 1-2 shift solenoid, and repair/replace as necessary.
3-4 shift valve stuck in downshifted position | Replace the 3-4 shift valve.
3-4 accumulator valve stuck | Replace the 3-4 accumulator valve.
Manual valve misaligned in manual third gear | Inspect the manual valve, and replace as necessary.
Control valve body assembly has porosity, is misaligned, is loose or restricted, or has a fluid leak across channels. | Inspect the valve body to determine if flushing, realignment, tightening, or replacement is needed.
Gaskets and spacer plate have porosity, are misaligned, are loose or restricted, or have a fluid leak across channels. | Inspect the gaskets and spacer plate to determine if flushing, realignment, tightening, or replacement is needed.
Channel plate and gasket have porosity, are misaligned, are loose or restricted, or have a fluid leak across channels. | Inspect the channel plate and gasket to determine if flushing, realignment, tightening, or replacement is needed.
Transaxle case has porosity, is misaligned, or has a fluid leak across channels. | Inspect to determine if realignment or replacement is needed.
3-4 accumulator valve piston seal is leaking | Replace the seal.
Channel plate or case porosity near 3-4 accumulator valve | Inspect the channel plate and case for porosity, and replace as necessary.
Intermediate/fourth band and servo not applying or slipping | Replace the servo and/or band.
Intermediate/fourth servo piston broken or binding | Realign or replace the servo piston.
Intermediate/fourth servo piston or cover seals leaking | Replace the faulty seals.
Intermediate/fourth servo apply pin and return springs binding | Realign or replace the servo pin and springs.
Intermediate/fourth servo cover broken, loose, or leaking. | Secure or replace the servo cover.
Transaxle case cracked at the band seat | Replace the case.
Fluid leak in band apply fluid routing or fluid restricted | Check the intermediate/fourth band apply circuit, and repair/replace as necessary.
Low oil level may cause a drive failure in fourth gear. | Add any necessary fluid.
Loss of drive | Broken lugs or failed lug weld on torque converter assembly | Replace the torque converter.
Sheared torque converter assembly to flexplate bolts | Replace the bolts.
Worn turbine shaft splines on torque converter assembly | Replace the torque converter.
Internal torque converter assembly failure | Replace the torque converter.
Torque converter assembly cover cracked at the weld | Replace the torque converter.
Fluid level low | Add any necessary fluid.
Shift cable disconnected | Reattach the shift cable.
Transaxle oil filter assembly and transaxle oil filter seal plugged or missing | Replace the fluid filter and fluid filter seal.
Transaxle oil pump assembly seized or has broken pump gears | Replace the oil pump.
Oil pump drive shaft broken or has stripped splines | Replace the oil pump shaft.
Drive/driven sprockets and drive link assembly broken | Replace the sprockets and/or chain.
Control valve body, gaskets, and spacer plate damaged, leaking, or misaligned | Inspect the control valve body, gaskets, and spacer plate to determine if realignment, tightening, or replacement is needed.
Channel plate and gasket damaged, leaking, or misaligned | Inspect the channel plate and gasket to determine if realignment, tightening, or replacement is needed.
Turbine shaft has stripped splines | Replace the turbine shaft.
Input sprag assembly damaged or not holding | Refer to No First Gear, Slips in First Gear.
Forward clutch damaged or not holding | Refer to No First Gear, Slips in First Gear.
Lo roller clutch assembly damaged or not holding | Refer to No First Gear, Slips in First Gear.
Failure in planetary gears or lack of lube | Replace the planetary gear sets, and check the lube passages.
Differential and final drive assembly failure or lack of lube | Replace the differential and final drive assembly, and check the lube passages.
Worn, loose, or failed axle shafts | Replace the axle shafts.
Loss of power | Fluid level low | Add any transaxle fluid.
1-2 shift solenoid stuck OFF | Replace the 1-2 shift solenoid.
2-3 shift solenoid stuck ON | Replace the 2-3 shift solenoid.
TCC is stuck ON or dragging | Check the TCC system, and replace the faulty components.
Contaminated or damaged torque converter assembly | Replace the torque converter.
Engine stall | TCC is stuck ON or is dragging. | Check the TCC system, and replace the faulty components.
TCC solenoid is stuck ON. | Replace the TCC control PWM solenoid.
TCC solenoid exhaust is plugged. | Replace the TCC control PWM solenoid.
TCC regulated apply valve stuck in apply position. | Replace the apply valve.
First and second gear only | 2-3 shift solenoid valve stuck OFF | Replace the 2-3 shift solenoid.
2-3 shift solenoid leaking | Replace the 2-3 shift solenoid.
2-3 shift solenoid has an electrical malfunction | Replace the 2-3 shift solenoid.
2-3 shift valve stuck in downshifted position | Replace the 2-3 shift valve.
Direct clutch failed, released | Inspect the direct clutch and direct clutch circuit, and replace the faulty components.
Third and fourth gear only | 2-3 shift solenoid valve stuck ON | Replace the 2-3 shift solenoid.
2-3 shift solenoid is plugged. | Inspect the 2-3 shift solenoid, and repair/replace as necessary.
2-3 shift solenoid has an electrical malfunction. | Replace the 2-3 shift solenoid.
1-2 and 3-4 shift valves stuck in an upshifted position | Inspect the 1-2 and 3-4 shift valves, and replace as necessary.
First and fourth gear only | 1-2 shift solenoid stuck ON | Replace the 1-2 shift solenoid.
1-2 shift solenoid is plugged. | Inspect the 1-2 shift solenoid, and repair/replace as necessary.
1-2 shift solenoid has an electrical malfunction. | Replace the 1-2 shift solenoid.
Second and third gear only | 1-2 shift solenoid stuck OFF | Replace the 1-2 shift solenoid.
1-2 shift solenoid is leaking. | Inspect the 1-2 shift solenoid, and repair/replace as necessary.
1-2 shift solenoid has an electrical malfunction. | Replace the 1-2 shift solenoid.
No park | Parking lock actuator assembly bent or has a damaged rod | Inspect the parking lock actuator assembly, and repair/replace as necessary.
Binding or broken spring in parking lock actuator assembly | Inspect the parking lock actuator assembly, and repair/replace as necessary.
The rod of parking lock actuator assembly is not attached to manual shaft and detent lever assembly | Inspect the parking lock actuator assembly, and repair/replace as necessary.
Manual detent spring and roller assembly loose | Inspect the manual detent spring and roller assembly, and repair/replace as necessary.
Manual detent spring and roller assembly bent or damaged | Inspect the manual detent spring and roller assembly, and repair/replace as necessary.
Manual shaft and detent lever assembly damaged or loose | Inspect the manual shaft and detent lever assembly, and repair/replace as necessary.
Manual shaft to case pin missing in manual shaft and detent lever assembly | Inspect the manual shaft to case pin, and repair/replace as necessary.
Manual valve misaligned | Inspect the manual valve, and repair/replace as necessary.
Manual valve to detent lever link is bent | Inspect the manual valve to detent lever link, and repair/replace as necessary.
Parking lock pawl damaged or has a broken tooth | Replace the parking lock pawl.
Parking lock gear has damaged teeth/damaged splines. | Replace the parking lock pawl.
Parking lock pawl return spring broken or missing | Replace the parking lock pawl return spring, and repair/replace as necessary.
Shift cable misadjusted | Readjust the cable linkage.
No engine braking: all manual ranges | Oil line pressure low | Refer to High or Low Line Pressure.
3-4 shift valve stuck in fourth gear position, no coast clutch applied | Replace the 3-4 shift valve.
Manual valve misaligned | Inspect the manual valve, and repair/replace as necessary.
Control valve body assembly has porosity, is misaligned, is loose or restricted, or has a fluid leak across the channels. | Inspect the control valve body to determine if flushing, realignment, tightening, or replacement is needed.
Channel plate and gasket have porosity, are misaligned, are loose or restricted, or have a fluid leak across channels. | Inspect the channel plate and gasket to determine if flushing, realignment, tightening, or replacement is needed.
Driven sprocket support assembly has porosity, is misaligned, is loose or restricted, or has a fluid leak across channels. | Inspect the driven sprocket support to determine if flushing, realignment, tightening, or replacement is needed.
Driven sprocket support seals leaking | Replace the driven sprocket support seals.
Input shaft oil seal rings leaking | Replace the input shaft oil seal rings.
Input shaft bushing damaged or misaligned | Inspect the input shaft bushing, and replace as necessary.
Coast clutch piston assembly binding, cracked or leaking | Replace the coast clutch piston assembly.
Worn friction material or broken splines on coast clutch plates | Replace the fiber plates, inspect the steel plates, and replace as necessary.
Coast clutch release spring binding | Inspect the spring, and repair/replace as necessary.
Direct and coast clutch housing damaged or cracked | Inspect the direct and coast clutch housing and input shaft housing. Repair/replace as necessary.
Direct and coast clutch housing fluid feed holes restricted | Inspect the direct and coast clutch housing and input shaft housing. Repair/replace as necessary.
Direct and coast clutch housing exhaust checkball for the coast clutch missing or out of position | Inspect the housing for checkball, and repair/replace as necessary.
Fluid leak or restriction in coast clutch fluid routing | Check the coast clutch circuit, and repair as necessary.
No engine braking: manual second - second gear | Output shaft speed sensor reads 0 mph | Inspect the output shaft speed sensor, and replace as necessary.
TFP manual valve position switch assembly leaking or inoperative | Inspect the TFP manual valve position switch assembly, and replace as necessary.
Coast clutch not applied | Refer to No Engine Braking: All Manual Ranges.
Intermediate/fourth band not applied | Refer to No Fourth Gear: Slips in Fourth Gear.
No engine braking: manual first - first gear | Lo/reverse servo not applied | Inspect the lo/reverse servo and circuit, and replace faulty components.
TFP manual valve position switch assembly leaking or inoperative | Inspect the TFP manual valve position switch assembly, and replace as necessary.
#1 checkball missing | Replace the #1 checkball.
Coast clutch not applied | Refer to No Engine Braking: All Manual Ranges.
Drives in neutral | Manual valve and manual valve to detent lever link misaligned | Inspect the manual valve to detent lever link, and repair/replace as necessary.
Forward clutch not releasing | Inspect the forward clutch, and repair/replace the components as necessary.
Reverse clutch and lo/reverse servo, drives in reverse, not releasing | Inspect the reverse clutch and lo/reverse servo, and repair/replace as necessary.
No gear selection | Shift cable disconnected | Connect the shift cable.
Manual valve to detent lever link broken or missing | Inspect the manual valve to detent lever link, and replace as necessary.
Manual valve to link clip disconnected | Inspect the manual valve to link clip, and repair as necessary.
Manual valve stuck | Inspect the manual valve, and replace as necessary.
Control valve body assembly has blocked fluid channels | Inspect the control valve body assembly, and replace as necessary.
Channel plate has blocked fluid channels | Inspect the channel plate, and replace as necessary.
Transaxle case has blocked fluid channels | Inspect the transaxle case, and replace as necessary.
Shift indicator indicates wrong gear selection | Manual detent spring and roller assembly broken or missing | Inspect the manual detent spring and roller assembly, and replace as necessary.
Manual detent spring and roller assembly bolt loose | Inspect the manual detent spring and roller assembly, and replace as necessary.
Manual valve not connected to manual valve to detent lever link | Inspect the manual valve to detent lever link, and replace as necessary.
No TCC release | TCC solenoid has blocked exhaust or internal failure | Replace the TCC solenoid.
TCC solenoid has an external ground | Check the TCC solenoid electrical circuit, and repair as necessary.
TCC regulated apply valve and TCC control valve stuck in TCC apply position | Inspect the TCC regulated apply valve and TCC control valve. Replace as necessary.
Internal failure of torque converter assembly | Replace the torque converter assembly.
TCC apply with cold engine | Engine coolant temperature sensor malfunction | Inspect the coolant temperature sensor, and repair/replace as necessary.