Honda Civic. Manual — part 236

Downshift: D Position

VEHICLE SPEED REFERENCE - DOWNSHIFT D POSITION

3rd-->4th

26-30 mph (42-49
km/h)

4th-->5th

35-41 mph (57-66
km/h)

Lock-->up ON

31-37 mph (50-60
km/h)

APP Sensor A voltage: 2.5 V
1st-->2nd

18-22 mph (29-35
km/h)

2nd-->3rd

34-39 mph (54-62
km/h)

3rd-->4th

50-55 mph (80-89
km/h)

4th-->5th

75-86 mph (121-138
km/h)

Lock-->up ON

93-104 mph (150-167
km/h)

Fully-opened throttle APP Sensor A
voltage: 4.4 V
1st-->2nd

35-40 mph (57-65
km/h)

2nd-->3rd

64-72 mph (103-116
km/h)

3rd-->4th

102-112 mph (164-181
km/h)

APP Sensor A voltage: 1.3 V
Lock-up OFF

30-37 mph (49-59
km/h)

5th-->4th

30-35 mph (49-57
km/h)

2008 Honda Civic LX

2006-08 TRANSMISSION Automatic Transmission - Civic (Except Hybrid)

15. Drive the vehicle in 4th or 5th gear in D, then shift to 2, the vehicle should

immediately begin to slow down from engine braking.

16. Shift to 1, accelerate from a stop at full throttle, and check for abnormal noise

and clutch slippage. Upshifts should not occur in this position.

17. Shift to 2, accelerate from a stop at full throttle, and check for abnormal noise

and clutch slippage. Upshifts and downshifts should not occur in this position.

18. Shift to R, accelerate from a stop at full throttle, and check for abnormal noise

and clutch slippage.

19. Park the vehicle on a slope (about 16-degrees), apply the brake, and shift into

P. Release the brake; the vehicle should not move.

4th-->3rd

22-25 mph (36-41
km/h)

3rd-->2nd

5-8 mph (8-13 km/h)

2nd-->1st

5-8 mph (8-13 km/h)

APP sensor A voltage: 2.5 V
Lock-up OFF

60-68 mph (97-110
km/h)

Fully-opened throttle APP Sensor A
voltage: 4.4 V
Lock-up OFF

119-129 mph (191-208
km/h)

4th-->3rd

82-92 mph (132-148
km/h)

3rd-->2nd

54-61 mph (87-98
km/h)

2nd-->1st

26-31 mph (42-50
km/h)

NOTE:

Always use the parking brake to hold the vehicle, when
stopped on an incline in gear. Depending on the grade
of the incline, the vehicle could roll backwards if the
brake is released.

2008 Honda Civic LX

2006-08 TRANSMISSION Automatic Transmission - Civic (Except Hybrid)

STALL SPEED TEST

1. Make sure the transmission fluid is filled to the proper level (see ATF LEVEL

CHECK ).

2. Apply the parking brake, and block all four wheels.
3. Connect the HDS to the DLC (A) located behind the driver's dashboard lower

cover, and go to the A/T DATA LIST.

Fig. 169: Identifying Data Link Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.

4. Make sure the HDS communicates with the PCM. If it does not, go to the DLC

circuit troubleshooting (see DLC CIRCUIT TROUBLESHOOTING ).

5. Make sure the A/C switch is OFF.
6. After the engine has warmed up to normal operating temperature (the radiator

fan comes on), shift to 2.

7. Firmly press the brake pedal and accelerator pedal for 6 to 8 seconds, and note

engine speed. Do not move the shift lever while raising the engine speed.

8. Allow 2 minutes for cooling, then repeat the test in the D, 1, and R.

NOTE:

Do not test stall speed for more than 10 seconds at
a time.

Stall speed tests should be used for diagnostic
purposes only.

Stall speed tests should be the same in D, 2, 1, and

2008 Honda Civic LX

2006-08 TRANSMISSION Automatic Transmission - Civic (Except Hybrid)

Stall Speed rpm:

Specification: 2,670 rpm

Service Limit: 2,520-2,820 rpm

9. If the stall speeds are out of the service limit, problems and probable causes are

listed in the table.

PROBLEMS AND PROBABLE CAUSES

R.

Do not test stall speed with the A/T oil pressure
gauges installed.

Problem

Probable causes

Stall speed rpm high in
the D, 2, 1, and R
positions

ATF pump output
low

Clogged ATF
strainer

Regulator valve
stuck

Slipping clutch

Stall speed rpm high in
the 1 position

Slippage of 1st clutch

Stall speed rpm high in
the 2 position

Slippage of 2nd clutch

Stall speed rpm high in
the R position

Slippage of 5th clutch

Stall speed rpm low in
the D, 2, 1, and R
positions

Engine output low

Engine throttle
valve closed

Torque converter
one-way clutch
slipping

2008 Honda Civic LX

2006-08 TRANSMISSION Automatic Transmission - Civic (Except Hybrid)