check engine ACURA TL 1995 Service Owner's Guide

19. Turn the ignition switch ON (II). Move the shift lever

through all gears, and check the A/T gear position

switch synchronization with the A/T gear position

indicator.

GAUGE ASSEMBLY

20. If the A/T gear position switch is not synchronized

with the A/T gear position indicator, loosen the bolts

securing the A/T gear position switch and adjust the

A/T gear position switch installation.

21. Start the engine. Move the shift lever through all

gears, and verify the following:

• The shift lever cannot be moved to the posi-

tion from the position without pushing the

shift lever.

• The engine will not start in any gear, only in the

or position.

• The back-up lights come on when the shift lever

is in the position.
A/T GEAR POSITION

INDICATORProCarManuals.com

Symptom-to-Component Chart

Hydraulic System

SYMPTOM

Engine runs, but vehicle does not move in any gear.

Vehicle moves in , but not in , , or position.

Vehicle moves in , , but not in position.

Vehicle moves in , , but not in position.

Vehicle moves in but not in position.

Vehicle moves in position.

Excessive idle vibration

Poor

acceleration; flares on starting off in position

Stall rpm high in position

Stall rpm high in , , position

Stall rpm high in position

Stall rpm high in position

Stall rpm low

No shift

Fails to shift in position; from 1st to 3rd gear

Fails to shift in position; from 1st to 4th gear

Erratic upshifting

1-2 upshift, 2-3 upshift, 3-4 upshift

1-2 upshift

2-3 upshift

3-4 upshift

Harsh upshift (1-2)

Harsh upshift (2-3)

Harsh upshift (3-4)

Harsh downshift (2-1)

Harsh downshift (3-2)

Harsh downshift (4-3)

Flares on 3-4 upshift

Excessive shock on 2-3 upshift

Excessive shock on 3-4 upshift

Late
shift from position to or positions

Late shift from position to position

Noise from transmission in all shift lever positions

Vehicle does not accelerate more than 31 mph (50 km/h).

Shift
^ver
does
not
operate smoothly.

Fails to shift; stuck in 4th gear

Transmission will not shift into parking gear in position.

Stall
rpm high; all clutch pressures are in specification.

Lock-up clutch does not disengage.

Lock-up clutch does not operate smoothly.

Lock-up clutch does not engage.

No engine braking in position

No engine braking in position

Vibration in all positions

Position indicator light does not come on
Check these items on the

PROBABLE CAUSE List

1,2,3,4,5,6,7,37,42

5, 8, 9, 59, 60, 61
('96)

5, 10,
11,60

5,12,58

5, 9, 59

9,11,13,31,32,34,35,36

2, 33, 37, 48, 49

1, 2, 3, 5, 42, 45

5, 7, 9, 59

5,11,60

58

14, 33, 48, 49

41,51,52

19

19,20

45,64

51

52

51

11, 16, 17, 18, 21, 27, 59, 60, 61C97 - '98),

62C97 - '98), 63, 64

16, 17, 19, 22, 31, 60, 61C97 - '98), 62C97 - '98),

63,64

16, 17, 20, 22, 23, 28, 29, 30, 32, 61C97 - '98),

62C97 - '98), 63, 64

9, 27, 28, 59

19, 22, 29, 39

16, 17, 20, 22, 23, 24, 30, 40, 56, 61('97 - '98),

62C97 - '98), 63, 64

16, 17, 20, 22, 23, 25, 28, 30, 32, 61('97 - '98),

62C97 - '98)

16, 17, 22, 39, 46, 61C97 - '98), 62C97 - '98), 64

16, 17, 22, 23, 28, 29, 40, 46, 61
('97
-
'98),

62C97 - '98), 64

3, 9, 26

3, 18, 58

2, 4, 7, 41

14

5,43

17,51,52

5,
15,43

45

16, 17, 47, 48, 49, 50, 53, 54, 64

16, 17, 45, 47, 48, 49, 50, 53, 54, 64

16, 17, 45, 47, 48, 49, 50, 53, 54, 63, 64

7, 9, 51, 57

7, 11,51,57,59

37

5, 43, 55
Check these items

on the NOTES List

K, L, R, S

C, M, 0

C, L

C, L, Q

C, L, M

C, D

B, K, L

K, L, R

C, D

C, D

N

R

G, L

V

C, D, E, V

C, D, E, H, L, V

C, D, E, I, L, V

0

C, D, E, H

C, D, E, I

E, L, N, V

E, L, N

E, L, N

M

Q

K, L, Q

P

P

D, K, O

E, L, V

L

E, L, V

C, D

C, DProCarManuals.com

PROBABLE CAUSE

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40
Low ATF

ATF pump worn or binding

Regulator valve stuck or spring worn

Mainshaft worn/damaged

Shift cable broken/out of adjustment

Secondary drive gear, secondary driven gear,

extension shaft worn/damaged

Countershaft worn/damaged

1st gears worn/damaged (2 gears)

1st clutch defective

2nd gears worn/damaged (2 gears)

2nd clutch defective

Reverse gears worn/damaged (2 gears)

Excessive ATF

Torque converter one-way clutch defective

Parking mechanism defective

Throttle valve stuck

Linear solenoid defective

1-2 shift valve stuck

2-3 shift valve stuck

3-4 shift valve stuck

2nd accumulator defective

3rd accumulator defective

4th accumulator defective

4-3 shift timing valve stuck

Foreign material in main orifice

Foreign material in 1st orifice

Foreign material in 2nd orifice

3-4 orifice control valve stuck

Foreign material in 3rd orifice

Foreign material in 4th orifice

3rd clutch defective

4th clutch defective

Engine output low

Needle bearing worn/damaged

Thrust washer worn/damaged

Clutch clearance incorrect

Drive plate defective or transmission misas-

sembly

2nd check ball stuck

3rd check ball stuck

4th check ball stuck
41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61C96)

61
('97 -'98)

62C97 - '98)

63

64
Torque converter housing or transmission

housing ball bearing worn/damaged

ATF strainer clogged

Joint in shift cable and transmission or body

worn

Modulator valve stuck

Torque converter check valve stuck

Foreign material in separator plate orifice

Lock-up timing valve stuck

Lock-up shift valve stuck

Lock-up piston defective

Lock-up control valve stuck

Shift control solenoid valve A defective

Shift control solenoid valve B defective

Lock-up control solenoid valve A defective

Lock-up control solenoid valve B defective

A/T gear position switch defective

4-3 kick-down valve stuck

1st-hold clutch defective

Reverse clutch defective

1st gear one-way clutch worn/damaged

2nd gear one-way clutch worn/damaged

CPC valve defective

Line pressure control valve defective

Main orifice control valve defective

Mainshaft speed sensor defective

Countershaft speed sensor defective

(cont'd)ProCarManuals.com

Road Test

(cont'd)

4. Accelerate to about 35 mph (57 km/h) so the transmission is in 4th, then shift from position to position. The vehi-

cle should immediately begin slowing down from engine braking.

CAUTION: Do not shift from or position to or position at speeds over 63 mph (100 km/h); you may dam-

age the transmission.

5. Check for abnormal noise and clutch slippage in the following positions.

(1st Gear) Position

a. Accelerate from a stop at full throttle. Check that there is no abnormal noise or clutch slippage,

b. Upshifts should not occur with the shift lever in this position.

(2nd Gear) Position

a. Accelerate from a stop at full throttle. Check that there is no abnormal noise or clutch slippage,

b. Upshifts and downshifts should not occur with the shift lever in this position.

(Reverse) Position

Accelerate from a stop at full throttle, and check for abnormal noise and clutch slippage.

6. Test in (Parking) Position

Park the vehicle on slope (approx. 16°), apply the parking brake, and shift into position. Release the brake; the vehi-

cle should not move.ProCarManuals.com

Fluid Level

Checking/Changing

Checking

NOTE: Check the fluid level with the engine at normal

operating temperature (the radiator fan comes on).

1. Park the vehicle on level ground. Turn off the

engine.

2. Remove the dipstick (yellow loop) from the trans-

mission, and wipe it with a clean cloth.

DIPSTICK (YELLOW LOOP)

DIPSTICK

GUIDE

3. Insert the dipstick into the transmission. Make sure

the notch in the rubber cap fits in the dipstick guide,

and push the dipstick in all the way.

4. Remove the dipstick and check the fluid level. It

should be between the upper and lower marks.

UPPER MARK

LOWER MARK

5. If the level is below the lower mark, pour the recom-

mended fluid* into the dipstick tube to bring it to

the upper mark.

6. Insert the dipstick back in the transmission. Make

sure the notch fits in the dipstick guide, and the dip-

stick is down all the way.
Changing

Bring the transmission up to normal operating tem-

perature (the radiator fan comes on) by driving the

vehicle. Park the vehicle on level ground, turn the

engine off, and remove drain plug.

NOTE: If a cooler flusher is to be used, see flushing

procedure in the '95 - '98 Acura 2.5TL Service

Manual, 61SW504.

SEALING WASHER

Replace.

DRAIN PLUG

18x1.5 mm

49 N-m (5.0 kgf-m, 36 Ibf-ft)

ATF PAN

2. Reinstall the drain plug with a new washer, then

refill the transmission with the recommended fluid*

to the upper mark on the dipstick.

Automatic Transmission Fluid Capacity:

'96 Model:

3.3 ( (3.5 US qt, 2.9 Imp. qt.) at change

8.7 £ (9.2 US qt., 7.7 Imp. qt.) after overhaul

'97 - '98 Models:

3.0 i (3.2 US qt., 2.6 Imp. qt.) at change

8.6 £ (9.1 US qt., 7.6 Imp. qt.) after overhaul

Recommended Automatic Transmission Fluid:

Genuine Honda Premium Formula Automatic

Transmission Fluid (ATF)*

* Always use Genuine Honda Premium Fomula

Automatic Transmission Fluid (ATF). Using a non-

Honda ATF can affect shift qualify.ProCarManuals.com

6. Disconnect the transmission sub-harness connector (14P).

7. Start the engine, and run it at 2,000 rpm.

TRANSMISSION SUB-HARNESS

CONNECTOR (14P)

8. Shift to the [HI or [P] position, and measure line pressure at fully-opened throttle.

9. Connect battery voltage to the linear solenoid terminals of the transmission sub-harness connector as shown.

10. Measure line pressure at fully-closed throttle.

If line pressure is out of specification, check and repair the probable cause in the table below.

PRESSURE

Line
SHIFT LEVER

POSITION

or
SYMPTOM

No (or
low)

line pressure
PROBABLE CAUSE

Torque converter,

ATF pump, pres-

sure regulator.

torque converter

check valve
FLUID PRESSURE

Standard

520 kPa

(5.3 kgf/cm2, 75 psi)

Fully closed throttle

|

910 kPa

(9.3 kgf/cm2, 130 psi)

Fully opened throttle
Service Limit

500 kPa

(5.1 kgf/cm2, 73 psi)

Fully closed throttle

790 kPa

(8.1 kgf/cm2, 120 psi)

Fully opened throttle

11. Stop the engine, and connect the transmission sub-harness connector (14P).

12. Disconnect the special tool from line pressure inspection hole, and connect the special tool to each inspection hole.

13. Start the engine, and run it at 2,000 rpm.

(cont'd)ProCarManuals.com

Transmission

Installation

1. Flush the ATF cooler (see flushing procedure in the

'95 - '98 Acura 2.5TL Service Manual, 61SW504).

2. Install the torque converter securely with a new O-ring

on the mainshaft, and install two 14 x 20 mm dowel

pins in the torque converter housing.

14x20 mm

DOWEL PIN

14x20 mm

DOWEL PIN
O-RING

Replace.

EXTENSION

SHAFT

TORQUE

CONVERTER

3. Clean the extension shaft opening on the differen-

tial side.

NOTE: Keep all of the particles out of the extension

shaft opening.

4. Set the extension shaft, and apply Super High Temp

Urea Grease (P/N 08798 - 9002) to the shaft splines.

SUPER HIGH TEMP

UREA GREASE

(P/N 08798 - 9002)

EXTENSION SHAFT

5. Place the transmission on a jack, and raise it to

engine level.
6. Attach the transmission to the engine, then install

the transmission housing mounting bolt with the

26 mm shim.

NOTE: Do not install the transmission housing bolt

on the engine stiffener side.

12 x
1.25
mm

64 N-m (6.5 kgf-m,

47 Ibf-ft)
8 x
1.25
mm

26 N-m (2.7 kgf-m, 20 Ibf-ft)

6x 1.0 mm

12 N-m (1.2 kgf-m,

8.7 Ibf-ft)

26 mm SHIM
8x1.25 mm

22 N-m

(2.2 kgf-m,

16 Ibf-ft)

TORQUE CONVERTER

COVERS

TRANSMISSION HOUSING

MOUNTING BOLT

12 x
1.25
mm

64 N-m (6.5 kgf-m, 47 Ibf-ft)

7. Attach the torque converter to the drive plate with

six bolts and torque:

Rotate the crankshaft as necessary to tighten the

bolts to 1/2 of the specified torque, then to the final

torque, in a crisscross pattern. After tightening the

last bolt, check that the crankshaft rotates freely.

8. Install the torque converter covers.

9. Install the engine stiffener. Tighten the engine stiff-

ener 8 mm bolts loosely, and tighten the transmis-

sion housing mounting bolt to the specified torque,

then tighten the 8 mm bolts to the specified torque.

(cont'd)ProCarManuals.com

Steering Gearbo x
Installatio n (cont'd )
13. Reconnec t th e tie-ro d end s t o th e steerin g knuckles ,
tighte n th e castl e nu t t o th e specifie d torque , an d
instal l ne w cotte r pins .
NOTE : Befor e connectin g th e tie-ro d ends , chec k
th e bal l join t pi n tapere d sectio n an d thread s sec -
tio n fo r greas e contamination , an d wip e i t i f neces -
sary.
CAUTION : Torqu e th e castl e nu t t o th e lowe r
torqu e specification , the n tighte n it onl y fa r enoug h
t o alig n th e slo t wit h th e pi n hole . D o no t alig n th e
nu t b y loosening .
14 . Instal l th e fron t wheels .
15 . Fil l th e syste m wit h powe r steerin g fluid , an d blee d
ai r fro m th e syste m (refe r t o th e '9 5 - 9 8 Acur a
2.5T L Servic e Manual , P/ N 61SW504) .
16 . Afte r installation , perfor m th e followin g checks .
• Star t th e engine , allo w it t o idle , an d tur n th e
steerin g whee l fro m lock-to-loc k severa l time s t o
war m u p th e fluid . Chec k th e gearbo x fo r leaks .
• Adjus t th e fron t to e (se e sectio n 18 ).
• Chec k th e steerin g whee l spok e angle . Adjus t b y
turning the righ t an d lef t tie-rods , i f necessary .
NOTE : Tur n th e righ t an d lef t tie-rod s equally .
CASTLE NU T49 - 5 9 N- m(5. 0 - 6. 0 kgf-m , 3 6 - 4 3 Ibf-ft )
COTTE R PI NReplace .On reassembly , ben d
th e cotte r pi n a s shown .
ProCarManuals.com

Troubleshooting Precautions

ABS Indicator Light:

The ABS indicator light comes on for three seconds and then goes off when the control unit detects no problem during the

initial diagnosis right after the engine starts. However, the ABS indicator light can stay on for up to 40 seconds when the

control unit starts to check for pump overrun, etc. during the initial diagnosis. The ABS indicator light comes on, and the

ABS control unit memorizes the diagnostic trouble code (DTC) under certain conditions.

• The parking brake is applied for more than 30 seconds while the vehicle is being driven. (DTC 2-1)

• The transmission downshifted excessively. (DTC 4-1, 4-2)

• The vehicle loses traction, and the front wheels spin for more than one minute when starting from a stuck condition on

a muddy, snowy, or sandy road. (DTC 4-8)

• Tire adhesion is lost due to excessive cornering speed. (DTC 5, 5-4, 5-8)

• The vehicle is driven on an extremely rough road. (DTC 8-1)

• The vehicle is interfered by strong radio waves (noise), for example, illegal radio, etc. (DTC 8-2)

NOTE: If there is any trouble in the system, the ABS indicator light comes on during driving.

Diagnostic Trouble Code (DTC):

• When the control unit detects a problem and the ABS indicator light comes on, the control unit memorizes the DTC.

• The control unit has three memory registers. When a problem occurs, the control unit stores the DTC in the first memory

register. If another problem occurs, or the same problem occurs again, the control unit moves the first DTC to the next

memory register, and stores the second DTC in the first register. If there's a third problem occurrence, the two existing

DTCs are moved up one register, and the third DTC is stored in the first register. If problems continue to occur, the oldest

problem is moved out of the last register and lost, and the most recent problem is stored in the first register. When the

same problem occurs three times, the same DTC is stored in all memory registers. (Refer to the Symptom-to-System

Chart for diagnostic period.)

• The most recent DTC is indicated first, and the oldest DTC is indicated last.

• The DTCs are erased from the control unit when the ABS control unit +B2 power supply or connector is disconnected.

• The control unit's memory can be erased by disconnecting the ABS B2 fuse for more than three seconds.

Self-diagnosis:

• There are three self-diagnosises described below.

Initial diagnosis: Performed right after the engine starts until the ABS indicator light goes off.

Regular diagnosis: Continuously performed (under some conditions) after the ABS indicator light goes off until the

engine stops.

Individual part/system diagnosis: Diagnosis about a specific part/system under its operating conditions.

• The CPU (central processing unit) controls the following when it detects a problem during self-diagnosis:

Turns the ABS indicator light ON.

Turns the front and rear fail-safe relays off.

Stops the ABS control.

Stops the ABS pump. (The pump may work under some conditions.)

After the DTC is stored in the control unit, the CPU stops self-diagnosis.ProCarManuals.com

Kickback and Pump Operation:

• When the engine is started, the ABS control unit begins the initial diagnosis and operates the solenoid valve one time.

The kickback may be felt when the brake pedal is depressed.

• When the ABS control unit detects the pressure switch OFF signal during the initial diagnosis, it operates the pump

motor, and performs the pump motor over-run diagnosis and pump motor diagnosis. Therefore, there are two cases

where the pump motor operates or does not operate after the engine is started.

• Normally, after the initial diagnosis, the pump motor operates based on the pressure switch signal, regardless of the

vehicle speed.

Troubleshooting:

• When two or three DTCs are stored in the control unit, perform troubleshooting for the DTC that appears first.

• When a customer's reported problem cannot be verified on the car, ask the customer about the conditions when the

ABS indicator light came ON, and test-drive the car under those conditions, if possible. When the ABS indicator light

does not come ON during the test, check for loose terminals and check by shaking the harnesses and connectors while

following the flowchart.

• The connector terminal numbers are viewed from the wire side for the female terminals, and from the terminal side for

the male terminals.

• After the repair is completed, test-drive the car and check that the ABS indicator light does not come ON again during

the test. (Refer to the Symptom-to-System Chart for diagnostic period.)ProCarManuals.com