clutch switch HONDA CR-V 2000 RD1-RD3 / 1.G Owner's Guide

znd, 3rd, and ,lth Clutch Pressurs Measuremenl'97 - 98 Modols:
1. Stan the engine, and shift to E position.
2. Run the engine at 2,000 rpm, then measure 2nd
clutch pressure.
3. Shift to E position, and hold the engine at 2'000
rpm, then measure 3rd clutch pressure.
4. Shift to E position, and hold the engine at 2,000
rpm, then measure 4th clutch pressure.
5. Shift to @ position, and hold the engine at 2,000
rpm, then measure 4th clutch pressure.
4TH CLUTCH PRESSUREINSPECTION HOLE
'99 - 00 Models:
1. Start the engine, and shift to El position.
2. Run the engine at 2,000 rpm. then measure 2nd
clutch pressure.
3. Shift to E position, and turn the Over-Drive (O/D)
OFF by pressing the O/D switch (O/O OFF indicator
light comes on).
4. Hold the engine at 2,000 rpm, then measure 3rd
clutch Pressure.
5. Turn the Over-Drive ON by pressing the O/D switch
(O/D OFF indicator light goes out), and hold the
engine at 2,000 rpm, then measure 4th clutch pres-
sure.
6. Shift to E position, and hold the engine at 2,000
rpm, then measure 4th clutch prgssure
2ND CLUTCH PRESSUREINSPECTION HOLE
3RD CLUTCH PRESSUREINSPECTION HOLE
'"r.,-ur"" "..#
- -t"1' -.
INSPECTION HOLE
PRESSURESHIFT LEVER
POSmONSYMPTOMPROBABLE CAUSE
FLUID PRESSURE
StandardServico Limit
2nd ClutchtrNo or low 2nd
pres$ure
2nd Clutch800 - 850 kPa
\A.2 - 8.1 kgtlcm2,'120 - '124 psil
760 kPa
(7.7 kgf/cm', 110 psi)
3rd ClutchE (97 - s8)
Elwith Over-
Drive is OFF(99 - 00)
No or low 3rd
pressure
3rd clutch
4th clutchE (97 ,98)
E (99 - oo)
No or low 4th
pressure
4th Clutch
EServo Valve or 4th
Clutch
14-163
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O END COVER
O olL SEAL Replace.
O BALL BEARING
@ A/T GEAR PoSITIoN swITcH coVER
€) A/T GEAn PosrloN swrrcH
@ ROLLER
O coLLARG) o-RING Replace.{9) FEED PIPE FLANGE
@ O-RING Replace.
O SNAP RING
@ 3RD CLUTCH FEED PIPE(D CoUNTERSHAFT LOCKNUT 23 x 1.25 mm Replace.(} coNtcAL SPR|NG WASHER Reptace.
@ PARK GEAR@ ONE.WAY CLUTCH(, COUNTENSHAFT lST GEAR(D NEEOLE BEARING(O COUNTERSHAFT lST GEAR COLLAR
@ o-RING Reptace.
@ lST CLUTCH FEED PIPE
@ O-RING Reptace.
@} FEEO PIPE FLANGE
@ SNAP RING
@ DOWEL PIN
@ END coVER GASKET Feplace.
@ PARK PAWL SToP@ PARK PAWL
@ PARK PAWL SPRING
@ PARK PAWL SHAFT
O} A/T GEAR POSITION SWITCH HARNESS CLAMP
@ PARK LEVER
@ LOCK WASHER Replace.
@ PARK STOP Selective part
@ PARK LEVER SPRING@ DRAIN PLUG
O SEALING WASHER Reptace.
@) MAINSHAFT LOCKNUT2l x 1.25 mm Replace.@ CONICAL SPRING WASHER Replace.@ lST CLUTCH ASSEMBLY
TOROUE SPECIFICATIONS
i!, O-RING Replace.
@ THRUST WASHER
@ THRUST NEEDLE BEARING@ NEEDLE BEARING
@ MAINSHAFI 1ST GEAR@ MAINSHAFT 1sT GEAR coLLAR
@ o-RING Replace.
6!, COUNTERSHAFT SPEED SENSOR@ ROLLER
@) COLLAR@ o-RtNG Replace.
6A FEEo PIPE FLANGE
@ o-RtNG Reptace.
@ SNAP R|NG
@ IST.HOLD cLUTcH FEED PIPE@ SUB-SHAFT LOCKNUT 19 x 1,25 mm Reptace.O coNtCAL SPR|NG WASHER Reptace.E! SUB.SHAFT lST GEAR€} LINEAR SOLENOID ASSEMBLY
@ LTNEAR soLENotD aSSEMBLy GASKET Reptace.
@ HARNESS BBACKET
@ SEALING WASHERS Feptace.
@ ATF COOLER LINE
@ LIN€ BoLT
@ ATF DIPSTICK
@ ATF COOLER LINE
@ LINE BoLT@ SEALING WASHERS Reptace.@ VEHICLE SPEED sENsoR (vss)
@ o-RtNG Beptace.
Bolt/Nut No.Torque ValuoSizeRemarks
6B
8A
12J
18D
19S
21M
23C
'12 N'm ('1.2 kgf.m,8.7 lbf.ft)
14 N.m (1.4 kgf.m, 10lb{.ft}
22 N.m 12.2 kgf.m, 16 lbf.ft)
28 N'm (2.9 kgf.m,21 lbf.ft)
49 N.m (5.0 kgf.m,36 lbf'ft)
93 N'm {9,5 ksim.69 lbf.ft)
78 N.m {8.0 kgnm,58 lbf.ft)
103* 0- 103 N{n {10.5* 0+ 10.5 kgfn,
75.9-0-75.9 lbf{t)
6x 1.0 mm
6x1.0mm
8 x 1.25 mm
12 x 1.25 mm
18 x 1.5 mm
19 x 1.25 mm
21 x 1.25 mm
23 x 1.25 mm
Line bolt
Drain plug
Sub-shaft locknut
Mainshaft locknut: Left-hand threads
Countershaft locknut: Left-hand
threads
14-175
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O END COVERiLl OIL SEAL Beplace.
O BALL BEARINGi.) A/T GEAR POSITION SWITCH COVER
i5] A/T GEAR POSITION SWITCH
aq) RoLLER
? COLLABi0 o-BtNG Replace.
€) FEED PIPE FLANGE
f,o) o-RING Replace.
1' SNAP RING
1A 3RD CLUTCH FEED PIPE
O COUNTERSHAFT LOCKNUT 23 x 1.25 mm Replace.
[} coNtcal SPRING WASHER Replace.iO PARK GEAR(!I ONE.WAY CLUTCH
E COUNTERSHAFT lST GEAR
@ NEEDLE BEARING
@ COUNTERSHAFT 1ST GEAR COLLAR
Or o-RtNGS Reptace.
?] lST CLUTCH FEED PIPE
@ o-RING Replace.
e3 FEED PIPE FLANGE
4I SNAP RING
€i DOWEL PINi?0 END COVER GASKET Replace.
?7) PARK PAWL STOP
E9 PARK PAWL
C9 PARK PAWL SPRING
€D PARK PAWL SHAFT
OI A/T GEAR POSITION SWITCH HARNESS CIAMP
@ PARK LEVER
€3 LoCK WASHER Replace.
04 PARK sToP Selective part(!' PARK LEVER SPRING
@ DRAIN PLUG
Ot SEALING WASHER Replace.
60 MA|NSHAFT LocKNuT 21 x 1.25 mm Replace.(9 CONICAL SPRING WASHER Replace.
@ lST CLUTCH ASSEMBLY
TOROUE SPECIFICATIONS
,!4! O-RING Replace.
@I THRUST WASHER@ THRUST NEEDLE BEARINGi.!' NEEDLE BEARINGi MAINSHAFT lST GEAR
@i MAINSHAFT 1ST GEAR COLLAR!r, O-RING Replace.iO COUNTERSHAFT SPEED SENSOR
E ROLLER
@, coLLAR
Ct o-RING Replace.5.] FEED PIPE FLANGE
09 o-RING Replace.
6A SNAP RING
5' IST.HOLD CLUTCH FEED PIPE
@-] SUB-SHAFT LOCKNUT 19 x 1.25 mm Replace.
!t CONICAL SPRING WASHER Replace.
6i' SUB-SHAFT lST GEAR
G) LINEAR SOLENOID ASSEMBLY(6!) LINEAR SOLENOID ASSEMBLY GASKET Replace
G] HARNESS BRACKET
6a SEALING WASHERS Replace.
C' ATF COOLER LINE
@ L|NE BoLT
GI ATF DIPSTICK
GI ATF COOLER LINE
O LINE BOLT
@ SEALING wasHERs Replace.aoo VEHICI.E SPEED SENSOR IVSS)
f,E O-RING Replace.
Bolt/Nut No.Torque ValueSizeRemarks
6A
6B
8A
12J'18D
195
21M
12 N.m (1.2 kgf.m,8.7 lbf.ft)
14 N.m (1.4 kgf.m, 10lbf.ft)
22 N.m 12.2 kgim, 16lbf.ft)
28 N.m (2.9 kgim,21 lbf.ft)
49 N'm (5.0 kgim,36 lbf.ft)
93 N.m (9.5 kgf.m,69 lbf.ft)
78 N.m (8.0 kgf.m,58 lbf.ft)
103+ 0+ 103 N{n (10.5 + 0+ 10.5 kSfm,
75.9' 0 - 75.9 lbfft)
6x1.0mm
6x1.0mm
8 x 1.25 mm
12 x 1 .25 mm
18 x 1.5 mm
19 x 1.25 mm
21 x 1.25 mm
23 x 1.25 mm
Line bolt
Drain plug
Sub-shaft locknut
Mainshaft locknut: Left-hand threads
Countershaft locknut: Left-hand
threads
14-181
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1. Remove the A/T gear position switch harness
cramp.
Remove the y'VT gear position switch cover.
Remove the bolt securing the ly'T gear position switch
harness clamp on the end cover, then remove the A/T
gear position switch.
Remove the 12 bolts securing the end cover. then
remove the cover.
Slip the special tool onto the mainshaft as shown.
6. Engage the park pawl with the park gear.
7. Cut the locktabs of each shaft locknut using a chisel as
shown. Keep all chiseled particles out of the transmis-
ston.
M=tt"
Align the hole of the sub-shaft 1st gear with the hole
of the transmission housing. then insert a pin to lock
the sub-shaft while removing the sub-shaft locknut.
Remove the locknuts and conical spring washers from
each shaft.
NOTE:
Mainshaft and countershaft locknuts have left-
hand threads.
Clean the old countershaft locknut. lt is used to
install the press fit park gear on the countershaft.
MAINSHAFT
PIN8 mm pin,
commercially
SUB-SHAFTLOCKNUTReplace.COUNTERSHAFTLOCKNUTReplace.
CONICAL SPNING WASHERSReplace.
9. Remove the lock pin that was installed to hold the
sub-shaft.
10. Remove the special tool from the mainshaft.
11. Remove the 1st clutch, mainshaft 1st gear assembly,
and mainshaft 1st gear collar.'12. Remove the sub-shaft 1st gear.
13. Remove the park pawl, pawl spring, pawl shaft. and
pawl stoP.
14. Remove the park lever from the control shaft.
15. Using a universal two jaw puller, remove the park
gear, one-way clutch, and countershaft 1st geal
assemblv.
{Commercially available)
1SY GEAR
Remove the needle bearing and countershaft 1st gear
co ar.
Remove the ATF cooler lines,
LOCKNUTReplace.
2\
Irot)
PULLER
11.
14-187
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Description
Rear Differential
Outline
The Real-time 4WD-Dual Pump System model has a hydraulic clutch and a differential mechanism in the rear differential
assembly. Under normal conditions, the vehicle is driven by the front wheels. However, depending on to the driving force
of the front wheels and the road conditions. the system instantly transmits appropriate driving force to the rear wheels
without requiring the driver to switch between 2WD (tront wheel drive) and 4WD (four wheel drive). The switching mecha-
nism between 2WD and 4WD is integrated into the rear differential assembly to make the system light and compact.
ln addition, the dual-pump system switches off the rear-wheel-drive force when braking in a forward gear. This allows the
braking system to work properly on models equipped with an Anti-lock Braking System (ABS).
Construction
The rear differential assembly consists of the torque control differential case assembly and the rear differential carrier
assembly. The torque control differential case assembly consists of the differential clutch assembly, the companion
flange, and the oil pump body assembly. The rear differential carrier assembly consists of the differential mechanism. The
differential drive and driven gears are hypoid gears.
The oil pump body assembly consists of the front oil pump, the rear oil pump, the hydraulic control mechanism, and the
clutch piston. The clutch piston has a disc spring that constantly provides the differential clutch assembly with a preset
torque to Drevent abnormal sound.
The clutch guide in the differential clutch assembly is connected to the propeller shaft via the companion flange, and it
receives the driving force lrom the transfer assembly. The clutch guide rotates the clutch plate and the front oil pump in
the oil pump body.
The clutch hub in the differential clutch assembly has a clutch disc that is splined with the hypoid drive pinion gear. The
hypoid drive gear drives the rear oil pump.
The front and rear oil pumps are trochoidal pumps. The rear oil pump capacity is 2.5 percent larger that the front oil pump
to handle the rotation difference between the front and rear wheels caused by worn front tires and tight corner braking.
The oil pumps are designed so the fluid intake works as a fluid discharge when the oil pumps rotate in reverse. Genuine
Honda CVT fluid is used instead of differential fluid.
Operation
When there is a difference in rotation speed between the front wheels (clutch guide) and rear wheels (hypoid driven gear),
hydraulic pressure from the front and rear oil pumps engages the differential clutch, and drive force from the transler
assembly is applied to the rear wheels.
The hydraulic pressure control mechanism in the oil pump body selects 4WD mode when the vehicle is started abruptly,
or when accelerating in a forward or reverse gear (causing rotation difference between the front and rear wheels). or
when braking in reverse gear {when decelerating). lt switches to 2WD mode when the vehicle is driven at a constant speed
in forwar! or reverse gear (when there is no rotation difference between the front and rear wheels), or when braking in a
fo rwa rd gear (when decelerating).
To protect the system, the differential clutch assembly is lubricated by hydraulic pressure generated by the oil pumps in
both 4WD and 2WD modes. Also, the thermal switch relieves the hydraulic pressure on the clutch piston and cancels 4WD
mode if the temDerature of the differential fluid rises above normal.
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TOROUE CONTROL OIFFERENTIAL
REAR DIFFERENTIAL ASSEMBLY
OIL PUMP BODY
OIFFERENTIAL CLUTCHHYPOID DRIVEPINION GEAR
OIFFERENTIAL CARRIER
DIFFERENTIAL
HYPOID RING GEAR
DIFFERENTIAI- HOUSING
REAR OII- PUMP
ASSEMBLY
CLUTCH GUIDE
COMPANION FLANG€
CLUTCH HUB
CLUTCH PLATE
HYDRAULIC CONTROL SYSTEM
CLUTCH PISTON
CLUTCH DISC
REAR OIL PUMP
FRONT OIL PUMP
DISC SPRINGFRONT OIL PUMP
DIFFEREMT|AL CLUTCHASSEMBI-Y
THERMAL SWITCHRELIEF VALVEOIL STRAINER
15-5
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Thermal Switch Operation l2WD)
During 4WD operation, pressure-regulated fluid is in contact with the clutch piston and the thermal switch.
lf the temperature of the fluid in the differential goes too high, the thermal switch pushes open the relief valve R. This
causes the pressure in the clutch piston to drop, and 4WD mode is disengaged.
THERMAL SWITCHRELIEF VALVE
Reliet Valve Operation
When the fluid pressure goes higher than the relief valve spring force, check valve R opens. Pressure applied at the clutch
piston is held constant. This feature adds stability by preventing the rear wheel drive system from experiencing excessive
to rque.
RELIEF VALVE
15-9
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Component Location
lndex
EVAPORATORReplacement, page 22-48Overhaul, page 22-49
SERVICE VALVEILOW-PRESSURE SIDE}
CONDENSERReplacement, page 22-70
A/C PRESSURE SWTTCHWhen the refrigorant pressure is below 200 kPa 12.0 kglc.r|r,28 psi) or abov€ 3,200 kPa (32 kgflcmr, 455 psi), the AJC pressureswitch opens the circuit to the Ay'C switch and stops the airconditioning to protect the compressor.
Replacement, page 22-62Clutch Inspection, page 22-65Clutch Overhaul, pago 22-66Thermal Protector Replacement, page 22-68Relief Valve Replacem€nt. page 22-68
SERVICE VALVEIHIGH-PRESSURE SIDEI
,
[\,
-il
(cont'd)
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SLOWER MOTOR RELAY,RADIATOR FAN RELAY.CONDENSER FAN REI-AY,COMPRESSOR CLUTCH RELAY(Located in the undeFhood fuse/relay box)Test. page 22-45
CONDENSER FAN 2P CONNECTOB
RADIATOR FAN2P CONNECTORA/C PRESSURE SWITCH2P CONNECTOR
COMPARTMENTWIRE HARNESS
{cont'd)
1P CONNECTOR
22-5
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Circuit Diagram
UNDER.DASHFUSEiRELAY BOXIGNIT ON SWITCHUNDEB HOOD FUSE/RELAY BOX
/6'^' F;t"^i IwHTBLK + **f ,o+trrffl- eLK/YEI f
\_-./
,JCPRESSURESWITCN2 /: 1Btu/RED -{.-!}- Btu/yvHT\,-/
BLU'ryVHTBLK
G401G402
RED
I,
mI d I CoMPRESSORI I I CLUTCH
LIl
I
CONDENSER
MOTOR
BLK/RED GRN WHT
I I,^,^,", I
L^"^,Y**t,|
T*.'1 Y
lllBLK BLK BLK
rtl
lll---
G201 G101 G202
COMPRESSOFCLUTCHRELAY
22-8
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