Acura RL. Manual - part 214

defective  

10. CPC valve A defective  

11. CPC valve B defective  

12. CPC valve C stuck  

13. Foreign material in 

separator plate orifice  

14. Shift valve C defective  

15. Shift valve E defective  

16. Servo control valve 

defective  

17. 1st accumulator defective  

18. 1st check ball stuck  

19. One-way check ball stuck  

20. 1st clutch defective  

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 plates for wear and 
damage, and inspect the 
clutch wave-plate height. If 
the discs and flat-plates are 
worn or damaged, replace the 
discs and flat-plates as a set. If 
the wave-plate 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.  

Late shift after shifting from N 
to R, or excessive shock when 
shifting

1. Shift solenoid valve C 

defective  

2. A/T clutch pressure control 

solenoid valve B defective  

3. A/T clutch pressure control 

solenoid valve C defective  

4. Shift cable broken or out of 

adjustment  

5. Connection between shift 

cable and transmission or 
body is worn  

6. Input shaft (mainshaft) 

speed sensor defective  

7. Output shaft (countershaft) 

speed sensor defective  

8. ATF temperature sensor 

defective  

9. Shift fork shaft stuck  

10. CPC valve C stuck  

11. Reverse CPC valve 

defective  

12. Foreign material in 

separator plate orifice  

13. Shift valve E defective  

14. 5th accumulator defective  



Check for a stored DTC, and 
check for loose connectors.  



Inspect the O-ring, and check 
the shift solenoid valve for 
seizure.  



Inspect the A/T clutch 
pressure control solenoid 
valve body gasket and the 
ATF feed pipes for wear and 
damage. If the A/T clutch 
pressure control solenoid 
valve is stuck, inspect the 
CPC valves.  



Check for a loose shift cable 
at the shift lever and the 
transmission control lever.  



Check the 5th 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 plates for wear and 
damage, and inspect the 

 

2007 Acura RL 

2005-08 TRANSMISSION Automatic Transmission - RL

  

me 

 

Friday, June 05, 2009 1:18:10 PM

Page 27 

© 2005 Mitchell Repair Information Company, LLC. 

15. 5th clutch defective  

clutch wave-plate height. If 
the discs and flat-plates are 
worn or damaged, replace the 
discs and flat-plates as a set. If 
the wave-plate height is out of 
tolerance, replace the wave-
plate. If the discs and plates 
are OK, adjust the clearance 
with the clutch end-plate.  

Transmission does not shift

1. Input shaft (mainshaft) 

speed sensor defective  

2. Output shaft (countershaft) 

speed sensor defective  

3. Modulator valve defective  



Check for a stored DTC, and 
check for loose connectors.  



Check the line pressure.  

Erratic shifting: fails to shift in D 
and D3; starts off in 5th

1. Shift solenoid valve B 

defective  

2. Shift valve B defective  



Check for a stored DTC, and 
check for loose connectors.  



Inspect the O-ring, and check 
the shift solenoid valve for 
seizure.  

Erratic shifting: fails to shift in 
2nd in M; starts off in 4th

1. Shift solenoid valve B 

defective  

2. Shift valve B defective  



Check for a stored DTC, and 
check for loose connectors.  



Inspect the O-ring, and check 
the shift solenoid valve for 
seizure.  

Erratic shifting: fails to shift in 
D, D3, and 1st in M; starts off in 
3rd

1. Shift solenoid valve A 

defective  

2. Shift valve A defective  



Check for a stored DTC, and 
check for loose connectors.  



Inspect the O-ring, and check 
the shift solenoid valve for 
seizure.  

Erratic shifting: fails to shift in 
2nd in M; starts off in 1st

1. Shift solenoid valve A 

defective  

2. Shift valve A defective  



Check for a stored DTC, and 
check for loose connectors.  



Inspect the O-ring, and check 
the shift solenoid valve for 
seizure.  

Excessive shock or flares on all 
upshifts and downshifts

1. A/T clutch pressure control 

solenoid valve A defective  

2. Input shaft (mainshaft) 

speed sensor defective  

3. Output shaft (countershaft) 

speed sensor defective  

4. ATF temperature sensor 

defective  



Check for a stored DTC, and 
check for loose connectors.  



Inspect the A/T clutch 
pressure control solenoid 
valve body gasket and ATF 
feed pipes for wear and 
damage. If the A/T clutch 
pressure control solenoid 
valve is stuck, inspect the 

 

2007 Acura RL 

2005-08 TRANSMISSION Automatic Transmission - RL

  

me 

 

Friday, June 05, 2009 1:18:10 PM

Page 28 

© 2005 Mitchell Repair Information Company, LLC. 

5. CPC valve A defective  

6. Foreign material in 

separator plate orifice  

CPC valves.  



Inspect the sensor O-rings.  

Excessive shock or flares on 1-2 
upshift or 2-1 downshift

1. A/T clutch pressure control 

solenoid valve A defective  

2. A/T clutch pressure control 

solenoid valve C defective  

3. 2nd clutch transmission 

fluid pressure switch 
defective  

4. CPC valve A defective  

5. CPC valve C defective  

6. Foreign material in 

separator plate orifice  

7. 2nd accumulator defective  

8. 2nd check ball stuck  

9. 2nd clutch defective  



Check for a stored DTC, and 
check for loose connectors.  



Inspect the A/T clutch 
pressure control solenoid 
valve body gasket and the 
ATF feed pipes for wear and 
damage. If the A/T clutch 
pressure control solenoid 
valve is stuck, inspect the 
CPC valves.  



Check for a clogged orifice in 
the transmission fluid pressure 
switch connector. If the 
orifice is clogged, remove it 
and clean the connector.  



Check the 1st and 2nd clutch 
pressures.  



Inspect the clutch piston, 
clutch piston check valve, and 
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 plates for wear and 
damage, and inspect the 
clutch wave-plate height. If 
the discs and flat-plates are 
worn or damaged, replace the 
discs and flat-plates as a set. If 
the wave-plate height is out of 
tolerance, replace the wave-
plate. If the discs and plates 
are OK, adjust the clearance 
with the clutch end-plate.  

Excessive shock or flares on 2-3 
upshift or 3-2 downshift

1. Shift solenoid valve C 

defective  

2. A/T clutch pressure control 

solenoid valve B defective  

3. A/T clutch pressure control 



Check for a stored DTC, and 
check for loose connectors.  



Inspect the O-rings, and check 
the shift solenoid valve for 
seizure.  

 

2007 Acura RL 

2005-08 TRANSMISSION Automatic Transmission - RL

  

me 

 

Friday, June 05, 2009 1:18:10 PM

Page 29 

© 2005 Mitchell Repair Information Company, LLC. 

solenoid valve C defective  

4. 3rd clutch transmission 

fluid pressure switch 
defective  

5. CPC valve B defective  

6. CPC valve C defective  

7. Foreign material in 

separator plate orifice  

8. Shift valve C defective  

9. 2nd accumulator defective  

10. 3rd accumulator defective  

11. 2nd check ball stuck  

12. 2nd clutch defective  

13. 3rd clutch defective  



Inspect the A/T clutch 
pressure control solenoid 
valve body gasket and the 
ATF feed pipes for wear and 
damage. If the A/T clutch 
pressure control solenoid 
valve is stuck, inspect the 
CPC valves.  



Check for a clogged orifice in 
the transmission fluid pressure 
switch connector. If the 
orifice is clogged, remove it 
and clean the connector.  



Check the 2nd and 3rd clutch 
pressures.  



Inspect the clutch piston, 
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 plates for wear and 
damage, and inspect the 
clutch wave-plate height. If 
the discs and flat-plates are 
worn or damaged, replace the 
discs and flat-plates as a set. If 
the wave-plate height is out of 
tolerance, replace the wave-
plate. If the discs and plates 
are OK, adjust the clearance 
with the clutch end-plate.  

Excessive shock or flares on 3-4 
upshift or 4-3 downshift

1. Shift solenoid valve C 

defective  

2. A/T clutch pressure control 

solenoid valve B defective  

3. A/T clutch pressure control 

solenoid valve A defective  

4. 4th clutch transmission 

fluid pressure switch 
defective  

5. CPC valve A defective  



Check for a stored DTC, and 
check for loose connectors.  



Inspect the O-rings, and check 
the shift solenoid valve for 
seizure.  



Inspect the A/T clutch 
pressure control solenoid 
valve body gasket and the 
ATF feed pipes for wear and 
damage. If the A/T clutch 
pressure control solenoid 

 

2007 Acura RL 

2005-08 TRANSMISSION Automatic Transmission - RL

  

me 

 

Friday, June 05, 2009 1:18:10 PM

Page 30 

© 2005 Mitchell Repair Information Company, LLC.