1995 ACURA TL dashboard

8. Install the new SRS unit.

TORX BOLTS

9.8 N-m (1.0 kgf-m, 7.2 Ibf-ft)

Use a Torx T30 bit.

Replace.

SRS MAIN HARNESS

18P CONNECTOR

TORX BOLTS

9.8 N-m (1.0 kgf-m, 7.2 Ibf-ft)

Use a Torx T30 bit.

Replace.

9. Connect the SRS main harness 18P connector to the

SRS unit, then push it into position until it clicks.

10. Reinstall the radio panel bracket and radio panel

assembly.

11. Reinstall the dashboard center trim and center con-

sole.
12. Reconnect the driver's airbag 2P connector to the

cable reel 2P connector, and reinstall the access

panel on the steering wheel.

13. Reconnect the front passenger's airbag connector

to the SRS main harness, then reinstall the glove

box.

14. Reconnect the battery positive cable, then the nega-

tive cable.

15. After installing the SRS unit, confirm proper system

operation: Turn the ignition switch ON (II); the SRS

indicator light should come on for about six sec-

onds and then go off.

16. Enter the anti-theft code for the radio, then enter the

customer's radio station presets.ProCarManuals.com

Description

The automatic transmission is a combination of a 3-element torque converter and a dual-shaft electronically controlled

automatic transmission which provides 4 speeds forward and 1 reverse. The entire unit is positioned in line with the engine.

Torque Converter, Gears and Clutches

The torque converter consists of a pump, turbine and stator, assembled in a single unit.

They are connected to the engine crankshaft so they turn together as a unit as the engine turns.

Around the outside of the drive plate is a ring gear which meshes with the starter pinion when the engine is being started.

The entire torque converter assembly serves as a flywheel while transmitting power to the transmission mainshaft.

The transmission has two parallel shafts: the mainshaft and the countershaft. The mainshaft is in line with the engine

crankshaft.

The mainshaft includes the 1st, 2nd and 4th clutches, and gears for 4th, 2nd, 1st and reverse (3rd gear is integral with the

mainshaft, while the reverse gear is integral with 4th gear).

The countershaft includes the 3rd, and 1st-hold clutches, and gears for 3rd, 4th, 1st, 2nd, reverse, and parking. The sec-

ondary drive gear is integrated with the countershaft.

The gears on the mainshaft are in constant mesh with those on the countershaft.

When certain combinations of gears in the transmission are engaged by clutches, power is transmitted from the mainshaft

to the countershaft to provide and positions.

Electronic Control

The electronic control system consists of the Transmission Control Module (TCM), sensors, a linear solenoid and four

solenoid valves. Shifting and lock-up are electronically controlled for comfortable driving under all conditions.

The TCM is located below the dashboard, behind the glove box on the passenger's side.

Hydraulic Control

The lower valve body assembly includes the main valve body, the servo body and the shift control solenoid valves. They

are bolted on the lower part of the transmission housing.

Other valve bodies, the regulator valve body, the ATF pump body, the 2nd accumulator body, and the throttle valve body,

are bolted to the torque converter housing.

The main valve body contains the manual valve, the 1 - 2 shift valve, the 2 - 3 shift valve, the 3 - 4 shift valve, the 4th kick-

down valve, the 2 - 3 orifice control valve, the 3 - 4 orifice control valve, the 4th exhaust valve, the servo control valve,

and the main orifice control valve.

The servo body contains the servo valve, 3rd and 4th accumulator pistons.

The regulator valve body contains the regulator valve, the lock-up shift valve, and the cooler relief valve.

Fluid from the regulator passes through the manual valve to the various control valves.

The throttle valve body includes the throttle valve which is bolted onto the 2nd accumulator body. The 2nd accumulator

piston is assembled in the 2nd accumulator body.

The linear solenoid is joined with the throttle valve body.

The ATF pump body contains the modulator valve, the lock-up control valve, the lock-up timing valve, and the relief valve.

The torque converter check valve is located in the torque converter housing under the ATF pump body.

The 1st and 1st-hold accumulator pistons are assembled in the rear cover.

The clutches receive fluid from their respective feed pipes or internal hydraulic circuit.

Shift Control Mechanism

Input from various sensors located throughout the vehicle determines which shift control solenoid valve the TCM will acti-

vate. Activating a shift control solenoid valve changes modulator pressure, causing a shift valve to move. This pressurizes

a line to one of the clutches, engaging that clutch and its corresponding gear.

Lock-up Mechanism

In position, in 2nd, 3rd and 4th, and in position in 3rd, pressurized fluid is drained from the back of the torque con-

verter through a fluid passage, causing the lock-up piston to be held against the torque converter cover. As this takes place,

the mainshaft rotates at the same speed as the engine crankshaft. Together with hydraulic control, the TCM optimizes the

timing of the lock-up mechanism. The lock-up valves control the range of lock-up according to lock-up control solenoid

valves A and B, and throttle valve. When lock-up control solenoid valves A and B activate, the modulator pressure changes.

The lock-up control solenoid valves A and B are mounted on the torque converter housing, and are controlled by the TCM.ProCarManuals.com

Description

The electronic control system consists of the Transmission Control Module (TCM), sensors, a linear solenoid, and four

solenoid valves.

Shift and lock-up are electronically controlled for comfortable driving under all conditions.

The TCM is located below the dashboard, behind the glove box on the passenger's side.

TCM

Linear Solenoid

Shift Control

Solenoid Valve A

Shift Control

Solenoid Valve B

Lock-up Control

Solenoid Valve A

Lock-up Control

Solenoid Valve B

Engine Speed Signal

Brake Switch Signal

Mainshaft Speed Sensor

Signal

Countershaft Speed

Sensor Signal

Vehicle Speed Sensor

Signal

Indicator Light

Self-Diagnosis Signal
Electronic Control System

Shift Control

Lock-up Control
Throttle Position

Sensor Signal

Engine Coolant

Temperature

Sensor Signal

Service Check

Connector

Barometric

Pressure Sensor

INTERLOCK

CONTROL UNIT

Self-Diagnosis

FunctionProCarManuals.com

Troubleshooting Procedure s
(cont'd)
SRS component s ar e locate d in thi s area . Revie w th e SR S
componen t locations , precautions , an d procedure s in th e
SR S (sectio n 24 ) befor e performin g repair s o r service .
1. Remov e th e glov e bo x fro m th e dashboard .
CLIP
GLOV E BO X
5. 0 m m BOLT S
2.Remov e th e AB S contro l uni t mountin g bolts , an d
tur n th e AB S contro l uni t over . Disconnec t th e radi -
ato r fa n time r contro l uni t connecter .
NOTE: D o no t disconnec t th e connector s fro m th e
AB S contro l unit .
ABS CONTRO LUNIT
RADIATO R FA N
CONTRO L
MODULE CONNECTO R
6 x 1. 0 m m9.8 N- m (1. 0 kgf-m ,
7. 2 Ibf-ft )
3. Remov e th e contro l uni t bracket , the n remov e th e
TCM .
6 x 1. 0 m m9.8 N- m (1. 0 kgf-m , 7. 2 Ibf-ft )
WIR E HARNES S
CONNECTO R
STUD BOL T
CONTRO L UNI TBRACKE T
TCMFLANG ENUT9.8 N- m (1. 0 kgf-m ,
7. 2 Ibf-ft )
ProCarManuals.com

Transmission Contro l Modul e (TCM )
Replacemen t
SRS component s ar e locate d in thi s area . Revie w th e SR S
componen t locations , precautions , an d procedure s i n th e
SR S (sectio n 24 ) befor e performin g repair s o r service .
1 . Remov e th e glov e bo x fro m th e dashboard .
CLIP
GLOV E BO X
2.
5. 0 m m BOLT S
Remov e th e AB S contro l uni t mountin g bolts , an d
tur n th e AB S contro l uni t over . Disconnec t th e radi -
ato r fa n time r contro l uni t connector .
NOTE : D o no t disconnec t th e connector s fro m th e
AB S contro l unit .
ABS CONTRO LUNIT
RADIATO R FA N
TIME R CONTRO L
UNIT CONNECTO R
6 x 1. 0 m m9.8 N- m(1.0 kgf-m , 7. 2 Ibf-ft )
3. Remov e th e contro l uni t bracket , the n remov e th e
TCM . Disconnec t th e connector s an d replac e th e
TCM .
6 x 1. 0 m m9.8 N- m (1. 0 kgf-m , 7. 2 Ibf-ft )
WIR E HARNES S
CONNECTO R
STUD BOL TFLANG E NU T
9. 8 N- m (1. 0 kgf-m ,
7. 2 Ibf-ft )
CONTRO L UNI TBRACKE T
TCM
ProCarManuals.com

Windshield
Removal (cont'd )
6. Appl y protectiv e tap e t o alon g th e edg e o f th e dash -
boar d an d bod y a s shown . Usin g a s awl , mak e a
hol e throug h th e rubbe r da m an d adhesiv e fro m
insid e th e car . Pus h th e pian o wir e throug h th e
hole , an d wra p eac h en d aroun d a piec e o f wood .
PIANOWIRE
RUBBE R DA M
WINDSHIEL D
PROTECTIV ETAPE
ADHESIV E
WINDSHIEL D
PROTECTIV ETAPE
PROTECTIV ETAPE
DASHBOAR D
DEFOGGERSEAL
RUBBE RDAM
ADHESIV E
7. Wit h a helpe r o n th e outside , pul l th e pian o wir e
bac k an d fort h i n a sawin g motion , an d carefull y cu t
throug h th e rubbe r da m an d adhesiv e aroun d th e
entir e windshield .
CAUTION : Hol d th e pian o wir e a s clos e t o th e
windshiel d a s possibl e t o preven t damag e t o th e
bod y an d dashboard .
SPACERReplace .
PIANO WIR E
WINDSHIEL D
8. Carefull y remov e th e windshield .
9 . Cu t th e spacer s awa y fro m th e bod y wit h a knife .
NOTE : Replac e th e spacer s wit h ne w one s wheneve r
th e windshiel d i s removed .
PROTECTIV ETAPE
PIAN OWIRE
ProCarManuals.com

Dashboard
Componen t Removal/Installatio n
CAUTION: Whe n pryin g wit h a fla t ti p screwdriver , wra p
i t wit h protectiv e tape , an d appl y protectiv e tap e aroun d
th e relate d parts , t o preven t damage .
NOTE : Tak e car e no t t o scratc h th e dashboar d an d relate d
parts .
Instrumen t pane l removal :
1 . Lowe r th e steerin g column .
2 . Remov e th e screws , an d detac h th e clips , the n care -
fully pul l ou t th e instrumen t panel . Disconnec t th e
cloc k an d hazar d warnin g switc h connectors , the n
remov e th e instrumen t panel .
NOTE : Remov e th e lowe r screw s whil e peelin g
bac k th e lip .
INSTRUMEN TPANELCONNECTO R(CLOCK)
HAZARD WARNIN GSWITCH CONNECTO R
LIPPee l back .
3. Installatio n i s th e revers e o f th e remova l procedure .
NOTE : Mak e sur e th e connector s ar e connecte d
properly . Dashboar
d lowe r cove r an d kne e bolste r removal :
SR S component s ar e locate d in thi s area . Revie w th e SR S
componen t locations , precautions , an d procedure s i n th e
SR S (sectio n 24 ) befor e performin g repair s o r service .
1 . Remov e th e screws , an d detac h th e clips , the n
remov e th e dashboar d lowe r cover .
DASHBOAR DLOWER COVE R2. Remov e th e bolts , detac h th e harnes s clip s an d con -
necto r clip , the n remov e th e kne e bolster .
SRS MAI NHARNES S6 x 1. 0 m m9.8 N- m(1.0 kgf-m ,7.2 Ibf-ft )
KNEE BOLSTE R
3. Installatio n i s th e revers e o f th e remova l procedure .
CLIPS
ProCarManuals.com

Dashboard

Component Removal/Installation (cont'd)

Dashboard center panel/Radio panel/Switch panel

removal:

1, Carefully detach the clips, then pull out the dash-

board center panel.

DASHBOARD

CENTER PANEL

CLIMATE

CONTROL

UNIT

2. Disconnect the connectors, then remove the dash-

board center panel.

3. Make sure you have the anti-theft code for the

radio, then write down the frequencies for the

radio's preset buttons.

4. Remove the screws, then pull out the radio panel

with the stereo radio/cassette player. Disconnect the

connectors and antenna lead, then remove it.

CONNECTORS

STEREO RADIO/

CASSETTE PLAYER
ANTENNA

LEAD

SHOP TOWEL
5. Installation is the reverse of the removal procedure.

NOTE:

Make sure the connectors and antenna lead are

connected properly.

Enter the anti-theft code for the radio, then enter

the customer's radio station presets.

Driver's switch panel removal:

1. Carefully detach the clips, then pull out the driver's

switch panel. Disconnect the connectors, then

remove it.

DRIVER'S SWITCH

PANEL

2. Installation is the reverse of the removal procedure.

NOTE: Make sure the connectors are connected

properly.

RADIO

PANEL
CONNECTOR

CONNECTORS
CONNECTORSProCarManuals.com