( TL19E1PE10400000000HBAT00 )

A/T System Symptom Troubleshooting Index

Symptom	Probable Cause(s)		Notes
When you turn ignition switch to ON (II), D indicator comes on and stays on in all shift lever positions, or it never comes on at all	F-CAN communication line error Gauge control module defective PCM defective		Check the F-CAN communication line for a DTC; R20A3 engine model, K24Z3 engine model. Check the A/T gear position indicator drive circuit in the gauge control module by using the gauge control module self-diagnostic function.
A/T gear position indicator does not come on while shift lever is in that position	F-CAN communication line error Gauge control module defective PCM defective Transmission range switch defective		Check the F-CAN communication line for a DTC; R20A3 engine model, K24Z3 engine model. Check the A/T gear position indicator drive circuit in the gauge control module by using the gauge control module self-diagnostic function. Inspect the transmission range switch; R20A3 engine model, K24Z3 engine model.
Shift indicator does not work	F-CAN communication line error Gauge control module defective PCM defective Transmission range switch defective		Check the F-CAN communication line for a DTC; R20A3 engine model, K24Z3 engine model. Check the F-CAN communication line by using the gauge control module self-diagnostic function. Check the A/T gear position indicator drive circuit in the gauge control module by using the gauge control module self-diagnostic function.
When you pull paddle shifter + (upshift switch) in D and S, transmission does not upshift	A problem in paddle shifter + (upshift switch) circuit		Check the paddle shifter + (upshift switch) circuit; R20A3 engine model, K24Z3 engine model.
When you pull paddle shifter − (downshift switch) in D and S, transmission does not downshift	A problem in paddle shifter − (downshift switch) circuit		Check the paddle shifter − (downshift switch) circuit; R20A3 engine model, K24Z3 engine model.
M indicator does not come on even though paddle shifter + (upshift switch) or paddle shifter − (downshift switch) is operated in sequential shift mode	F-CAN communication line error Gauge control module defective PCM defective		Check the F-CAN communication line for a DTC; R20A3 engine model, K24Z3 engine model. Check the A/T gear position indicator drive circuit in the gauge control module by using the gauge control module self-diagnostic function.
Paddle shifter + (upshift switch) illumination does not come on when combination light switch is turned on while ignition switch is ON (II)	Paddle shifter + (upshift switch) illumination circuit Paddle shifter + (upshift switch) illumination		Check the paddle shifter + (upshift switch) illumination circuit.
Paddle shifter − (downshift switch) illumination does not come on when combination light switch is turned on while ignition switch is ON (II)	Paddle shifter − (downshift switch) illumination circuit Paddle shifter − (downshift switch) illumination		Check the paddle shifter − (downshift switch) illumination circuit.
Kickdown timing and kickdown click timing is out of synchronization	Accelerator pedal kickdown click system incomplete learn Accelerator pedal position sensor circuit Accelerator pedal position sensor defective		Do the accelerator pedal kickdown click system learn procedure. Inspect the APP sensor signal; R20A3 engine model, K24Z3 engine model.
Shift lever cannot be moved from P while you are pressing on brake pedal	Accelerator pedal position sensor circuit Accelerator pedal position sensor defective Brake pedal position switch circuit Brake pedal position switch defective Shift lock solenoid defective Shift lock solenoid control circuit Shift lock mechanism Throttle body defective Transmission range switch ATP P switch stuck OFF Transmission range switch ATP P switch line opened		Troubleshoot the shift lock system circuit; R20A3 engine model, K24Z3 engine model. Test the shift lock solenoid. Inspect the transmission range switch; R20A3 engine model, K24Z3 engine model. Inspect the APP sensor signal; R20A3 engine model, K24Z3 engine model.
Ignition switch cannot be moved from ACCESSORY (I) to LOCK (0) (key is pushed in, shift lever in P)	Interlock control system circuit Key interlock solenoid stuck ON Park pin switch stuck OFF Transmission range switch ATP P line opened		Troubleshoot the key interlock system circuit. Inspect the transmission range switch; R20A3 engine model, K24Z3 engine model.
HDS does not communicate with PCM or vehicle	DLC circuit		Troubleshoot the DLC circuit; R20A3 engine model, K24Z3 engine model.

Symptom	Probable Cause(s)		Notes
Engine runs, but vehicle does not move in any gear	1. 2. 3. 4. 5. 6. 7. 8. 9. 10.	Low ATF level Shift cable broken or out of adjustment Connection between shift cable and transmission or body is worn ATF pump worn or binding Regulator valve stuck or spring worn ATF strainer clogged Mainshaft worn or damaged Final gears worn or damaged Transmission-to-engine assembly error Axle disengaged	Check the ATF level, and check the ATF cooler lines for leakage and loose connections. If necessary, clean the ATF cooler lines. Check for a loose shift cable at the shift lever and the transmission control shaft. Improper alignment of ATF pump and torque converter housing may cause ATF pump seizure. The symptoms are mostly an rpm-related ticking noise or a high pitched squeak. Check the line pressure. Be careful not to damage the torque converter housing when replacing the main ball bearing. You may also damage the ATF pump when you torque down the main valve body. This will result in ATF pump seizure if not detected. Use the proper tools. Install the main seal flush with the torque converter housing. If you push it into the torque converter housing until it bottoms out, it will block the fluid return passage and result in damage. Check the ATF strainer for debris. If the ATF strainer is clogged with particles of steel or aluminum, inspect the ATF pump. If the ATF pump is OK, find the damaged components that caused the debris. If no cause for contamination is found, replace the torque converter. Inspect the differential pinion gears for wear. If the differential pinion gears are worn, replace the differential assembly, replace the ATF strainer, thoroughly clean the transmission, and clean the torque converter, cooler, and lines.
Vehicle moves in R, but not in D, or 1st in S	1. 2. 3.	1st accumulator defective 1st gears worn or damaged 1st clutch defective	Check the 1st clutch pressure. Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer and the retainer seal for wear and damage. Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and the plates for wear and damage. If the discs are worn or damaged, replace them as a set. Inspect the clutch wave-plate height. If the height is out of tolerance, replace the wave-plate. If the discs and the plates are OK, adjust the clearance with the clutch end-plate. Inspect the 1st clutch feed pipe. If the 1st clutch feed pipe is scored, replace the end cover. Replace the secondary shaft if the bushing for the 1st clutch feed pipe is loose or damaged.

Symptom	Probable Cause(s)		Notes
Vehicle moves in D and R, but not in 2nd in S	1. 2. 3.	2nd accumulator defective 2nd gears worn or damaged 2nd clutch defective	Check the 2nd clutch pressure. Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer and the retainer seal for wear and damage. Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and the plates for wear and damage. If the discs are worn or damaged, replace them as a set. Inspect the clutch wave-plate height. If the height is out of tolerance, replace the wave-plate. If the discs and the plates are OK, adjust the clearance with the clutch end-plate.
Vehicle moves in D and S, but not in R	1. 2. 3. 4. 5. 6.	Shift solenoid valve E defective Shift fork shaft stuck Shift valve E defective 4th/reverse accumulator defective 4th clutch defective Reverse gears worn or damaged	Check for a stored DTC, and check for loose connectors. Inspect shift solenoid valve E for seizure, and the O-rings for wear and damage. Check for a missing shift fork bolt on the shift fork shaft. Check the 4th clutch pressure. Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer for wear and damage. Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and the plates for wear and damage. If the discs are worn or damaged, replace them as a set. Inspect the clutch wave-plate height. If the height is out of tolerance, replace the wave-plate. If the discs and the plates are OK, adjust the clearance with the clutch end-plate. Inspect the reverse selector gear teeth chamfers, and inspect the engagement teeth chamfers of the countershaft 4th gear and the reverse gear. Replace the reverse gears and the reverse selector if they are worn or damaged. If the transmission makes a clicking, grinding, or whirring noise, also replace the mainshaft 4th gear, the reverse idler gear, and the countershaft 4th gear.
Poor acceleration; flares when starting off in D, S, and R; stall speed high in D and S in 1st and 2nd	1. 2. 3. 4. 5. 6.	Low ATF level Shift cable broken or out of adjustment ATF pump worn or binding Regulator valve stuck or spring worn ATF strainer clogged Torque converter check valve defective	Check the ATF level, and check the ATF cooler lines for leakage and loose connections. If necessary, clean the ATF cooler lines. Check for a loose shift cable at the shift lever and the transmission control shaft. Improper alignment of ATF pump and torque converter housing may cause ATF pump seizure. The symptoms are mostly an rpm-related ticking noise or a high pitched squeak. Check the ATF strainer for debris. If the ATF strainer is clogged with particles of steel or aluminum, inspect the ATF pump. If the ATF pump is OK, find the damaged components that caused the debris. If no cause for contamination is found, replace the torque converter.

Symptom	Probable Cause(s)		Notes
Poor acceleration; flares when starting off in D, S, and R; stall speed high when starting off in 2nd in S	2nd clutch defective		Check the 2nd clutch pressure. Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer and the retainer seal for wear and damage. Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and the plates for wear and damage. If the discs are worn or damaged, replace them as a set. Inspect the clutch wave-plate height. If the height is out of tolerance, replace the wave-plate. If the discs and the plates are OK, adjust the clearance with the clutch end-plate.
Poor acceleration; flares when starting off in D, S, and R; stall speed high in R	1. 2.	Shift cable broken or out of adjustment 4th clutch defective	Check for a loose shift cable at the shift lever and the transmission control shaft. Check the 4th clutch pressure in D and R. Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer for wear and damage. Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and the plates for wear and damage. If the discs are worn or damaged, replace them as a set. Inspect the clutch wave-plate height. If the height is out of tolerance, replace the wave-plate. If the discs and the plates are OK, adjust the clearance with the clutch end-plate.
Poor acceleration; stall speed low in D and S in 1st and 2nd	1. 2. 3. 4. 5.	Shift solenoid valve E defective Torque converter one-way clutch defective Engine output low Torque converter clutch piston defective Lock-up shift valve defective	Check for a stored DTC, and check for loose connectors. Inspect shift solenoid valve E for seizure, and the O-rings for wear and damage. Replace the torque converter.
Poor acceleration; stall speed low in R	1. 2. 3. 4.	Engine output low Torque converter clutch piston defective Lock-up shift valve defective Torque converter one-way clutch defective	Replace the torque converter.

Symptom	Probable Cause(s)		Notes
Engine idle vibration	1. 2. 3. 4. 5. 6. 7.	Low ATF level Shift solenoid valve E defective Drive plate defective or transmission misassembled Engine output low Torque converter clutch piston defective ATF pump worn or binding Lock-up shift valve defective	Check the ATF level, and check the ATF cooler lines for leakage and loose connections. If necessary, clean the ATF cooler lines. Improper alignment of ATF pump and torque converter housing may cause ATF pump seizure. The symptoms are mostly an rpm-related ticking noise or a high pitched squeak. Inspect the ATF strainer for clogging with particles of steel or aluminum. If the ATF strainer is clogged, replace it, and clean the torque converter, cooler, and lines. Check for a stored DTC, and check for loose connectors. Inspect shift solenoid valve E for seizure, and the O-rings for wear and damage. Check for a misinstalled/damaged drive plate. Check that the idle rpm in gear is the specified idle speed; R20A3 engine model, K24Z3 engine model. If the idle speed is correct, adjust the engine and the transmission mounts. Replace the torque converter.
Vehicle moves in N	1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11.	Excessive ATF Foreign material in separator plate orifice Relief valve defective 1st clutch defective 2nd clutch defective 3rd clutch defective 4th clutch defective 5th clutch defective Clearance between clutch end-plate and top disc incorrect Needle bearing seized, worn, or damaged Thrust washer seized, worn, or damaged	Check the ATF level, and drain the ATF if it is over-filled. Check the 1st, 2nd, 3rd, 4th, and 5th clutch pressures. Check the ATF strainer for debris. If the ATF strainer is clogged with particles of steel or aluminum, inspect the ATF pump. If the ATF pump is OK, find the damaged components that caused the debris. If no cause for contamination is found, replace the torque converter. Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer and the retainer seal (1st, 2nd, and 3rd) for wear and damage. Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and the plates for wear and damage. If the discs are worn or damaged, replace them as a set. Inspect the clutch wave-plate height. If the height is out of tolerance, replace the wave-plate. If the discs and the plates are OK, adjust the clearance with the clutch end-plate. Inspect the 1st clutch feed pipe. If the 1st clutch feed pipe is scored, replace the end cover. Inspect the 3rd clutch feed pipe. If the 3rd clutch feed pipe is scored, replace it and the O-ring under the feed pipe guide. Replace the secondary shaft if the bushing for the 1st or the 3rd clutch feed pipe is loose or damaged. Inspect the 5th clutch feed pipe. If the 5th clutch feed pipe is scored, replace it and the O-ring under the feed pipe guide. Replace the mainshaft if the bushing for the 5th clutch feed pipe is loose or damaged.

Symptom	Probable Cause(s)		Notes
Late shift after shifting from N to D and S, or excessive shock when shifted into D and S	1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15.	Shift solenoid valve E defective A/T clutch pressure control solenoid valve A defective A/T clutch pressure control solenoid valve B defective A/T clutch pressure control solenoid valve C defective Shift cable broken or out of adjustment Connection between shift cable and transmission or body is worn Input shaft (mainshaft) speed sensor defective Output shaft (countershaft) speed sensor defective ATF temperature sensor defective Foreign material in separator plate orifice Servo control valve defective 1st accumulator defective 1st check ball stuck Lock-up shift valve defective 1st clutch defective	Check for a stored DTC, and check for loose connectors. Inspect the solenoid valve filter/gasket and the O-rings for wear and damage, and inspect the solenoid valves for seizure. Check the input shaft (mainshaft) speed sensor and the output shaft (countershaft) speed sensor installation. Check for a loose shift cable at the shift lever and the transmission control shaft. Check the 1st clutch pressure. Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer and the retainer seal for wear and damage. Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and the plates for wear and damage. If the discs are worn or damaged, replace them as a set. Inspect the clutch wave-plate height. If the height is out of tolerance, replace the wave-plate. If the discs and the plates are OK, adjust the clearance with the clutch end-plate. Inspect the 1st clutch feed pipe. If the 1st clutch feed pipe is scored, replace the end cover. Replace the secondary shaft if the bushing for the 1st clutch feed pipe is loose or damaged.
Late shift after shifting from N to R, or excessive shock when shifted into R	1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13.	Shift solenoid valve E defective A/T clutch pressure control solenoid valve A defective Shift cable broken or out of adjustment Loose or poor connection between shift cable and transmission or body is worn Input shaft (mainshaft) speed sensor defective Output shaft (countershaft) speed sensor defective ATF temperature sensor defective Shift fork shaft stuck Foreign material in separator plate orifice Shift valve E defective 4th/reverse accumulator defective Lock-up shift valve defective 4th clutch defective	Check for a stored DTC, and check for loose connectors. Inspect the solenoid valve filter/gasket and the O-rings for wear and damage, and inspect the solenoid valves for seizure. Check the input shaft (mainshaft) speed sensor and the output shaft (countershaft) speed sensor installation. Check for a loose shift cable at the shift lever and the transmission control shaft. Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer for wear and damage. Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and the plates for wear and damage. If the discs are worn or damaged, replace them as a set. Inspect the clutch wave-plate height. If the height is out of tolerance, replace the wave-plate. If the discs and the plates are OK, adjust the clearance with the clutch end-plate. Check for a missing shift fork bolt on the shift fork shaft. Check the 4th clutch pressure. Inspect the servo valve and the O-ring.
Transmission does not shift	1. 2.	Input shaft (mainshaft) speed sensor defective Output shaft (countershaft) speed sensor defective	Check for a stored DTC, and check for loose connectors. Check the input shaft (mainshaft) speed sensor and the output shaft (countershaft) speed sensor installation.
Excessive shock or flares on all upshifts and downshifts	1. 2. 3. 4. 5. 6.	A/T clutch pressure control solenoid valve B defective A/T clutch pressure control solenoid valve C defective Input shaft (mainshaft) speed sensor defective Output shaft (countershaft) speed sensor defective ATF temperature sensor defective Foreign material in separator plate orifice	Check for a stored DTC, and check for loose connectors. Inspect the solenoid valve filter/gasket and the O-rings for wear and damage, and inspect the solenoid valves for seizure. Check the input shaft (mainshaft) speed sensor and the output shaft (countershaft) speed sensor installation.
Excessive shock or flares on 1-2 upshift or 2-1 downshift	1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13.	Shift solenoid valve E defective A/T clutch pressure control solenoid valve A defective A/T clutch pressure control solenoid valve B defective A/T clutch pressure control solenoid valve C defective 2nd clutch transmission fluid pressure switch defective Foreign material in separator plate orifice 1st accumulator defective 2nd accumulator defective 1st check ball stuck 2nd check ball stuck Lock-up shift valve defective 1st clutch defective 2nd clutch defective	Check for a stored DTC, and check for loose connectors. Inspect the solenoid valve filter/gasket and the O-rings for wear and damage, and inspect the solenoid valves for seizure. Check the 1st and the 2nd clutch pressures. Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer and the retainer seal for wear and damage. Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and the plates for wear and damage. If the discs are worn or damaged, replace them as a set. Inspect the clutch wave-plate height. If the height is out of tolerance, replace the wave-plate. If the discs and the plates are OK, adjust the clearance with the clutch end-plate. Inspect the 1st clutch feed pipe. If the 1st clutch feed pipe is scored, replace the end cover. Replace the secondary shaft if the bushing for the 1st clutch feed pipe is loose or damaged.

Symptom	Probable Cause(s)		Notes
Excessive shock or flares on 2-3 upshift or 3-2 downshift	1. 2. 3. 4. 5. 6. 7. 8. 9.	A/T clutch pressure control solenoid valve B defective A/T clutch pressure control solenoid valve C defective 3rd clutch transmission fluid pressure switch defective Foreign material in separator plate orifice 2nd accumulator defective 3rd accumulator defective 2nd check ball stuck 2nd clutch defective 3rd clutch defective	Check for a stored DTC, and check for loose connectors. Inspect the solenoid valve filter/gasket and the O-rings for wear and damage, and inspect the solenoid valves for seizure. Check the 2nd and the 3rd clutch pressures. Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer and the retainer seal for wear and damage. Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and the plates for wear and damage. If the discs are worn or damaged, replace them as a set. Inspect the clutch wave-plate height. If the height is out of tolerance, replace the wave-plate. If the discs and the plates are OK, adjust the clearance with the clutch end-plate. Inspect the 3rd clutch feed pipe. If the 3rd clutch feed pipe is scored, replace it and the O-ring under the feed pipe guide. Replace the secondary shaft if the bushing for the 3rd clutch feed pipe is loose or damaged.
Excessive shock or flares on 3-4 upshift or 4-3 downshift	1. 2. 3. 4. 5. 6. 7.	A/T clutch pressure control solenoid valve B defective A/T clutch pressure control solenoid valve C defective Foreign material in separator plate orifice 3rd accumulator defective 4th/reverse accumulator defective 3rd clutch defective 4th clutch defective	Check for a stored DTC, and check for loose connectors. Inspect the solenoid valve filter/gasket and the O-rings for wear and damage, and inspect the solenoid valves for seizure. Check the 3rd and the 4th clutch pressures. Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer and the retainer seal (3rd) for wear and damage. Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and the plates for wear and damage. If the discs are worn or damaged, replace them as a set. Inspect the clutch wave-plate height. If the height is out of tolerance, replace the wave-plate. If the discs and the plates are OK, adjust the clearance with the clutch end-plate. Inspect the 3rd clutch feed pipe. If the 3rd clutch feed pipe is scored, replace it and the O-ring under the feed pipe guide. Replace the secondary shaft if the bushing for the 3rd clutch feed pipe is loose or damaged.
Excessive shock or flares on 4-5 upshift or 5-4 downshift	1. 2. 3. 4. 5. 6. 7.	A/T clutch pressure control solenoid valve B defective A/T clutch pressure control solenoid valve C defective Foreign material in separator plate orifice 4th/reverse accumulator defective 5th accumulator defective 4th clutch defective 5th clutch defective	Check for a stored DTC, and check for loose connectors. Inspect the solenoid valve filter/gasket and the O-rings for wear and damage, and inspect the solenoid valves for seizure. Check the 4th and the 5th clutch pressures. Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer for wear and damage. Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and the plates for wear and damage. If the discs are worn or damaged, replace them as a set. Inspect the clutch wave-plate height. If the height is out of tolerance, replace the wave-plate. If the discs and the plates are OK, adjust the clearance with the clutch end-plate. Inspect the 5th clutch feed pipe. If the 5th clutch feed pipe is scored, replace it and the O-ring under the feed pipe guide. Replace the mainshaft if the bushing for the 5th clutch feed pipe is loose or damaged.
Noise from transmission in all shift lever positions	1. 2.	ATF pump worn or binding Mainshaft bearing, countershaft bearing, or secondary shaft bearing defective	Improper alignment of ATF pump and torque converter housing may cause ATF pump seizure. The symptoms are mostly an rpm-related ticking noise or a high pitched squeak. Be careful not to damage the torque converter housing when replacing the main ball bearing. You may also damage the ATF pump when you torque down the main valve body. This will result in ATF pump seizure if not detected. Use the proper tools. Install the main seal flush with the torque converter housing. If you push it into the torque converter housing until it bottoms out, it will block the fluid return passage and result in damage. Inspect the ATF strainer for clogging with particles of steel or aluminum. If the ATF strainer is clogged, replace it, and clean the torque converter, cooler, and lines. Inspect the mainshaft, the countershaft, and the secondary shaft for wear or damage.
Vehicle does not accelerate above 50 km/h (31 mph)	Torque converter one-way clutch defective		Replace the torque converter.
Vibration in all shift lever positions	Drive plate defective or transmission misassembled		Check for a misinstalled/damaged drive plate. Check that the idle rpm in gear is the specified idle speed; R20A3 engine model, K24Z3 engine model. If the idle speed is correct, adjust the engine and the transmission mounts.
Shift lever does not operate smoothly	1. 2. 3.	Transmission range switch defective or out of adjustment Shift cable broken or out of adjustment Connection between shift cable and transmission or body is worn	Check for a stored DTC, and check for loose connectors. Inspect the transmission range switch for operation. Check for a loose shift cable at the shift lever and the transmission control shaft.
Transmission does not shift into P	1. 2. 3.	Shift cable broken or out of adjustment Connection between shift cable and transmission or body is worn Park mechanism defective	Check for a loose shift cable at the shift lever and the transmission control shaft. Check the park pawl spring installation and the park lever spring installation. If installation is incorrect, install the spring correctly. Make sure that the park lever stop is not installed upside down. Check the distance between the park pawl shaft and the park lever roller pin. If the distance is out of tolerance, adjust the distance with the park lever stop.
Torque converter clutch does not disengage	1. 2. 3. 4. 5.	Shift solenoid valve E defective A/T clutch pressure control solenoid valve A defective Torque converter clutch piston defective Lock-up shift valve defective Lock-up control valve defective	Check for a stored DTC, and check for loose connectors. Inspect the solenoid valve filter/gasket and the O-rings for wear and damage, and inspect the solenoid valves for seizure. Replace the torque converter.
Torque converter clutch does not operate smoothly	1. 2. 3. 4. 5. 6.	Shift solenoid valve E defective A/T clutch pressure control solenoid valve A defective Torque converter clutch piston defective Torque converter check valve defective Lock-up shift valve defective Lock-up control valve defective	Check for a stored DTC, and check for loose connectors. Inspect the solenoid valve filter/gasket and the O-rings for wear and damage, and inspect the solenoid valves for seizure. Replace the torque converter.
Torque converter clutch does not engage	1. 2. 3. 4. 5. 6. 7. 8.	Shift solenoid valve E defective A/T clutch pressure control solenoid valve A defective Input shaft (mainshaft) speed sensor defective Output shaft (countershaft) speed sensor defective Torque converter clutch piston defective Torque converter check valve defective Lock-up shift valve defective Lock-up control valve defective	Check for a stored DTC, and check for loose connectors. Inspect the solenoid valve filter/gasket and the O-rings for wear and damage, and inspect the solenoid valves for seizure. Replace the torque converter. Check the input shaft (mainshaft) speed sensor and the output shaft (countershaft) speed sensor installation.
A/T gear position indicator does not indicate shift lever positions	1. 2. 3.	Transmission range switch defective or out of adjustment Shift cable broken or out of adjustment Connection between shift cable and transmission or body is worn	Check for a stored DTC, and check for loose connectors. Inspect the transmission range switch operation. Check for a loose shift cable at the shift lever and the transmission control shaft.
Speedometer and odometer do not work	Output shaft (countershaft) speed sensor defective		Check for a stored DTC, and check for loose connectors. Inspect the transmission range switch operation. Check the output shaft (countershaft) speed sensor installation.
Engine does not rev to high rpm, and transmission upshifts at low rpm (engine at normal operating temperature)	VTEC rocker arms defective		Check the engine rocker arms.