Acura RL. Instruction — page 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.

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