1999 HONDA CIVIC ect

Linear Solenoid Assembly
Test
1. Disconnect the linear solenoid connector.
LINEAR SOLENOID
4.
Measure the resistance between the No. 1 and the
No. 2 terminals of the linear solenoid connector.
STANDARD: applox. 5 O
lf the resistance is out of specification, replace the
linear solenoid assembly.
Connect the No. 2 terminal of the linsar solenoid con-
nector to the batterv positive terminal and connect
the No. 1 terminal to the battery negative terminal A
clicking sound should be heard.
lf not, remove the linear solenoid assembly.
Check that the linear solenoid fluid passage Ior dust
or dirt.
Connect the No. 2 terminal of the linear solenoid
connector to the battery positive terminal and con-
nect the No, 1 terminal to the battery negative terma-
nal. Check that the valve moves.
Disconnect one of the battery terminals and check
that the valve releases.
NOTE: You can see the valve movement through
the fluid passage in the mounting surface of the lin-
ear solenoid assembly.
LINEAR SOLENOID
VALVE
lf the valve binds, or moves sluggishly, or the linear
solenoid does not operate, replace the linear solenoid
assembly.
1.
14-107

Mai nshaft/Cou ntershaft
Linear Solenoid AssemblySpeed Sensors
Replacement
1. Remove the mounting bolts and the linear solenoid
assemory.
Clean the mounting surfaceand flu id passages.
6x1.0mm12 N.m 11.2 kgl m,8.7 tbf.ftl
@
@
GASKET
Clean the mounting surface and fluid passage of the
linear solenoid assembly and transmission housing.
Install a new linear solenoid assembly with a new
gasl(et.
NOTE; Do not pinch the gasket when installing the
linear solenoid; make sure that the gasket is installedproperly in the mounting groove of the linear sole-
noid.
Check the linear solenoid connector for rust, dirt or
oil, and connect it securely,
LINEARSOLENOIDASSEMELY
I
14-108
Replacement
't.
6x128.7
Remove the 6 mm bolt and the countershaft speed
sensor from the right side cover.
COUNTERSI{AFTSPEED SENSOR
O.RINGReplace.
MAINSHAFTSPEEDSENSOR
MAINSHAFT SPEEDSENSOB WAS}IER(D16Y7 enginel
6x1.0mm12 N.m (1.2 kgf m,8.7 tbf.ft)
1.0 mmN.m (1.2 kgf.m,rbf ft)
\\
/,
%/E:)
Remove the 6 mm bolt and the mainshaft sDeed
sensor from the transmission housino.
Replace the O-ring with a new one before installing
the countershaft speed sensor or th€ mainshaft speed
sensor.
NOTE: Installthe mainshaft speed sensor washer on
the mainshaft speed sensor. The mainshaft speed
sensor washer is used on models with the D'|6Y7
engine.

The following symptoms can be caused
by improper repair or assembly
Check these items,on th€^ ltems on thePROBABLE CAUSE DUE TO NOTES ListIMPROPER REPAIR List
Vehicle creeps in N position.R1, R2
Vehicle does not move in &l or Pll position.R4
Transmission locks up in E position.R3, R11
Excessive drag in transmission.R6K,R
Excessive vibration, rpm related.R7
Noise with wheels moving onlY.R5
Main seal pops out.R8
Various shifting problems.R9, RlO
PROBABLE CAUSE DUE TO IMPROPER REPAIR
lmproper clutch clearance.
lmproper gear clearance.
Park lever installed upside down.
one-way {sprag) clutch installed upside down.
Reverse selector hub installed upside down.
ATF pump binding.
Torque converter not fully seated in ATF pump.
Main seal improperly installed.
Springs improperly installed.
Valves improperly installed.
Shift fork bolt not installed.
14-11

Symptom-to-Component Chart
Hydraulic System (cont'dl
G.
n,
set idle rpm in gear to specified idle speed. lf still no good, adjust motor mounts as outlined in enginesection of this manual.
lf the clutch pack is seized or is excessively worn. inspect the other clutches for wear, and check the orificecontrol valves, CPC valve and linear solenoid for free movement.
lf the linear solenoid is stuck, inspect the clutches for wear.
lmproper alignment or main valve body and torque converter housing may cause ATF pump seizure. Thesymptoms are mostly an rpm-related ticking noise or a high-pitched squeak.
lf the l st clutch feed pipe guide in the end cover is scored by the mainshaft, inspect the ball bearing forexcessive movement in the transmission housing. lf oK, replace the end cover as it is dented. The o-rinounder the guide is probably worn.
Replace the mainshaft if the bushing for the 4th feed pipe is loose or damaged. lf the 4th feed pipe is danFaged or out of round, replace the right side cover.
Replace the mainshaft if the bushing for the 1st feed pipe is loose or damaged. lf the 1st feed pipe is darn-aged or out of round, replace it.
A worn or damaged sprag clutch is mostly a result of shifting the transmission inthe wheels rotate in reverse, such as rocking the vehicle in snow.
or E position while
Inspect for damage and wear:
1. Reverse selector gear teeth chamfers.
2. Engagement teeth chamfers of countershaft 4th and reverse gear.
3. Shift fork for scuff marks in center.
4. Differential pinion shaft for wear u nder pin ion gears.
5. Bottom of 3rd clutch for swirl marks.
Replace items 1,2,3 and 4 if worn or damaged. lf transmission makes a clicking, grinding orwhirring noise,also replace mainshaft 4th gear, reverse idler gear. and countershaft 4th gear in addition to 1, 2, 3 or 4.lf differential pinion shaft is worn, overhaul differential assembly, and replace ATF strainer, and thoroughlyclean transmission, flush torque converter, cooler and lines.lf bottom of 3rd clutch is swirled and transmission makes gear noise, replace the countershaft and final drivengear.
Be very careful not to damage the torque converter housing when replacing the main ball bearing, you
may also damage the ATF pump when you torque down the main valve body. This will result in ATF pumpseizure if not detected. Use the oroper roors.
Install the main seal flush with the torque converter housing. lf you push it into the torque converterhousing until it bottoms out, it will block the fluid return passage and result in damage.
See flushing procedure, page 14-187 and 188.
lf the large clutch piston O-ring is broken, inspect the piston groove for rough machining.
lf the l-2 shift valve is stuck closed, the transmission will not upshift. lf stuck open, the transmission hasno 1st gear.
lf the znd orifice control valve is stuck. inspect the 2nd and 3rd clutch oacks for wear.
lf the 3-4 orifice control valve is stuck, inspect the 3rd and 4th clutch oacks for wear.
lf the clutch pressure control valve is stuck closed, the transmission will not shift out of 1st gear.
lf the ATF strainer is clogged with particles of steel or aluminum, inspect the ATF pump and differentialpinion shaft. lf both are OK and no cause for the contamination is found, replace the torque converter.
Inspect the frame for collision damage.
14-112

Road Test
NOTE: Warm up the engine to normal operating tem peratu re (the rad iator fan comes on )'
1. Apply parking brake and block the wheels. Start the engine, then shift to E position while depressing the brake
Dedal, Depress the accelerator pedal and release it suddenly. The engine should not stall'
2. Repeat same test in E Position.
3. Test-drive the vehicle on a flat road in the E position. Check that the shift points occur at approximate speeds shown
in the table. Also check for abnormal noise and clutch slippage.
NOTE: Throttle position sensor voltage represents the throttle opening
a. Unbolt the PCM for road testing; refer to page 14-50.
b. Setthedigital multimeter to check the th rottle position sensor voltage between PCM terminals;
. '96 - 98 models: D1 {+) and A9 (-) or 422 (-}.
. '99 - 00 models: C27 (+) andB20t-) orB22{-}.
BACKPROBE ADAPTER
BACKPROBE SET07sAz - 001oq)A{two requiredl
DIGIIAL MULTIMETERlCommercially available)KS-AHM-32-003,or equivalenl
'96 - 98 Modelsr
Wire side ol temale terminals
PCM CONNECTORS
B t25Pl c (31P)
LG1 IBRN/BLK)
I (25P1c (31P}
A t32PtD (16P)
Wire side ol female terminals
'9!t - 00 Models:
1+113

Accelerate to about 35 mph (57 km/h) so the transmlssion is in 4th, then shift from Dl position to Z position The
vehicle should immediately begin slowing down from engine braking'
CAUTION: Do not shift from -91 or -Dd position to E position at speeds ov6r 63 mph {100 km/hl; You mav damage
the transmission.
Check for abnormal noise and clutch slippage in the following positions'
E (2nd Gear) Position
ll 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 selector in this posirion'
E (Reverse) Position
i"ccelerate from a stop at fullthrottle, and check for abnormal noise and clutch slippage'
Test in B (Park) Position
Park the vehicle on slope (approx. l6'), apply the parking brake' and shift into E position Belease the brake; the veh'
cle shou,d nol move
1+115

Stall Speed
Test
CAUTION:
. To prev€nt transmission damage, do not t6st stall speed for more than ro sgconds at a time.. Do not shift the levor while raising the engine speed.. Bo sule lo remove the pressure gauge betoro testing stall speed.
'1. Engage the parking brake, and block the front wheels.
2. Connect a tachometer to the engine, and start the engine.
3. Make sure the Ay'C switch is OFF.
4. After the engine has warmed up to normal operating temperature (the radiator fan comes on). shift into E position.
5. Fully depress the brake pedal and accelerator for 6 to g seconds, and note engine speed.
6. Allow two minutes for cooling, then repeat the test in @ and @ positions.
NOTE:
. Stall speed tests should be used for diagnostic purposes only,. Stall speed should be the same in o., E and E positions.
Stall Spsed RPM:
Specification: 2.700 rpm
Service Limit: 2,550 - 2,850 rDm
TROUBLEPROBABLE CAUSE
. Low fluid level or ATF pump outDur. Clogged ATF strainer. Pressure regulator valve sluck closeo. Slipping clutch
. Slippage of 4th ctutch
. Slippage of 2nd clutch
. Slippage of lst clut"tr or. t"t g""io*-*"y "lut"h
Stall rpm high in D., E and E positions
Stall rpm high in El position
Stall rpm high in E posirion
Stall rpm high in E position
Stall rpm low in LDa . El and E positrons. Engine output low. Torque converter one-way clutch slipping
14-116

Fluid Level
Ghecking
NOTE: Keep all foreign particles out of the transmis-
sron.
1.Warm up the engine to normal operating tempera-
ture (the radiator fan comes on)
Park the vehicle on the level ground, then turn off
the engrne.
Remove the dipstick (yellow loop) from the trans-
mission. and wipe it with a clean cloth.
Insert the dipstick into the transmrssron
Remove the dipstick and check the fluid level lt
should be between the upper mark and lower
marks.
UPPER MABKLOWER MARK
lf the level is below the lower mark, pour the recom-
mended fluid into the tiller hole to bring it to the
upper mark. Always use Genuine Honda Premium
Formula Automatic Transmission Fluid (ATF). Using
a non-Honda ATF can affect shift quality
K
L
DIPSTICK IYELLOW LOOPI
7. Insert the dipstick back into the transmission in the
direction shown.
FRONT
Installthe dipstick in the extent
of the direction shown.
14-117