integrated HONDA CR-V 2000 RD1-RD3 / 1.G Workshop Manual

Description
General Operation
The Automatic transmission is a 3-element torque converter and triple-shaft electronically controlled unit which provides 4
speeds forward and 1 reverse speed The unit is positioned in line with the engine'
There are two tvoes of automatic transmission on CR-V; the four-wheel drive (4WD) model ('97 - 00)' and the front-wheel
drive (2WD) model ('98 - 00).
Toroue Converter, G€ars, and Clutches
The torque converter consists of a pump. turbine. and stator assembly in a single unit. The torque converter is connected to
the engine crankshatt. These parts turn together as a unit as the engine turns. Around the outside of the torque converter is
a ring gear which meshes with the starter pinion when the engine is started. The torque converter assembly serves as a fly-
wheel while transmitting power to the transmission mainshaft.
The transmission has three parallel shafts: the mainshaft. the countershaft, and the sub-shaft. The mainshaft is in line with
the engine crankshaft. The mainshaft includes the 1st, 2nd. and 4th clutches, and gears lor 3rd,2nd,4th. reverse and 1st
(3rd gear is integral with the mainshaft, while reverse gear is integral with the 4th gear). The countershaft includes the 3rd
clutch and gears for 3rd,2nd, 4th, reverse, 1st, and park. Reverse and 4th gears can be locked to the countershaft at its cen-
ter, providing 4th gear or reverse, depending on which way the selector is moved. The sub-shaft includes the lst-hold
clutch and gears for lst and 4th.
The gears on the mainshaft are in constant mesh with those on the countershaft and sub-shaft. When certain combinations
of gears are engaged by the ctutches, power is transmitted from the mainshaft to the countershaft to provide E, D!, tr, tr,
and E position ('97 - 98 models). and E. E, E, and E position ('99 - 00 models)'
Electlonic Control
The electronic controt system consists of the Powenrain Control Module (PCM), sensors, a linear solenoid, and four
solenoid valves. Shifting and lock-up are electronically controlled for comfortable driving under all conditions. The PCM is
located below the dashboard, under the kick panel on the passenger's side.
Hydraulic Control
The valve bodies include the main valve body, the secondary valve body, the regulator valve body, the servo body, and
the lock up valve body. They are bolted to the torque converter housing. The main valve body contains the manual valve,
the 1-2 shift valve, the 2nd orifice control valve. the CPB {Clutch Pressure Back-up) valve, the modulator valve, the servo
control valve. the relief valve, and ATF pump gears. The secondary valve body contains the 2-3 shift valve, the 3-4 shift
valve, the 3,4 orifice control valve. the 4th exhaust valve and the CPC (Clutch Pressure Control) valve. The regulator valve
bodv contains the pressure regulator valve, the torque converter check valve, the cooler relief valve, and the lock-up con-
trol valve. The servo body contains the servo valve which is integrated with the reverse shift tork, and the accumulators
The lock-up valve body contains the lock-up shift valve and the lock-up timing valve. The linear solenoid and the shift con-
trol solenoid valve Ay'B are bolted to the outside of the transmission housing, and the lock-up control solenoid valve Ay'B is
bolted to the outside of the torque converter housing. Fluid trom the regulator passes through the manual valve to the
various control valves. The clutches receive fluid from their respective feed pipes or internal hydraulic circuit
ShiftControl Mechanism
input from various sensors located throughout the vehicle determines which shift control solenoid valve the PCM 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. The shift control solenoid valves A and B are
controlled by the PCM.
Lock-up Mechanism
tn E! position (,97 - 98 modets) and in E position ('99 - O0 models), in 3rd and 4th, and in Del position in 3rd ('97 - 98
models) and in El position with Over,Drive (O/D) is OFF (by pressing rhe O/D switchl in 3rd ('99 - 00 models), pressurized
fluid is drained from the back of the torque converter 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 PcM 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 the linear solenoid. When lock-up control
solenoid valves A and B activate, the modulator pressure changes. The lock-up control solenoid valves A and B and the
linear solenoid are controlled by the PCM.
{cont'd)
14-3
www.emanualpro.com

Description
Hydraulic Control (cont'd)
Servo Body
The servo body is located on the secondary valve body. The servo body contains the servo valve (which is integrated withthe reverse shift fork), and the accumulators.
2ND ACCUMULATOR
3RD SUBACCUMULATOR
SERVO BODY
1ST ACCUMULATOR
SERVO VALVE/SHIFTFORK SHAFT
14-28
www.emanualpro.com

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.
www.emanualpro.com

Connector ldentification and Wire Harness Routing
Main Wire Harn€ss (left side of dash and floor branchesl {cont,dl
c401
c402
c403
c404
c404
c405
c406
c407
c408
c409
c410
c410
c411
c412
c413
c413
c414
c415
c416
c416
c417
c418
c419
c420
c420
c421
c422
c423
c424
c425
c42A
c426
c437
c438
c438
c439
c440
c441c442
5
20
20
24
't4
8
5
3
12
10'1
18
20'18
10
15
1
4
8
5
5
22
Behind left kick panel
Behind left kick panel
Behind left kick panel
Behind left kick panel
Behind left kick panel
Under left side of dashUnder left side of dashUnder left side of dashUnder left side of dashUnder left side of dashUnder left side of dashUnder left side of dash
Under left side of dashUnder left side of dashUnder left side of dash
Under left side of dash
Under left side of dashUnder left side of dashUnder left side of dashUnder left side of dashUnder left side of dashUnder left side of dashUnder left side of dashUnder left side of dash
Under left side of dashUnder left side of dashUnder left side of dashUnder middle of dashUnder middle of dashUnder middle of dashUnder middle of dashUnder middle of dash
Under left side of dashUnder left side of dash
Under left side of dashUnder left side of dashUnder left side of dashUnder left side of dashUnder left side of dash
Under left side of dash
Under left side of dashUnder left side of dashUnder left side of dashUnder left side of dash
Starter cut relay
Horn relay
Left side wire harness (C558)
Left side wire harness (C559)
Left side wire harness (C559)
Cruise control unitDaytime running lights control unitDaytime running lights control unitlgnition key light control unitInterior wire harness {C701)Cable reel
Cable reel
lgnition key switchlgnition key switch
Combination switch sub-harness {C753)
Combination switch sub-harness (C753)
SRS main harness (C803)
Dashboard wire harness (C503)
Dashboard wire harness (C501)
Dashboard wire harness {C501)Under-dash fuse/relay box (C922)
Under-dash fuse/relay box (C920)
Under-dash fuse/relay box (C919)
lntegrated control unit
Integrated control unitFront fog lights switchBrake switch
Interlock control unitReverse relay
Rear accessory socket relayRear accessory socket relayRear heated oxygen sensor sub-harness (C722)
Security control unitSecurity starter cut relay (for securityalarm system)
Junction connector (for interlock system)Security wire harnessSecurity wire harnessRear window wiper control unitCombination switch sub-harness (C760)
Combination switch sub-harness (C760)
Securlty indicatorSecurity valet switchClutch interlock switchClutch switch (for cruise control)
'97 model'98 - 00mooets
Canada
Canada'97 model
'97 model'98 - 00models
'97 - 98models'99 - 00
moqets
'97 model'98 - 00mooets
Optional
Optional
Optional
Optional
Optional'97 model
'97 - 98mooels'99 - 00models
OptionalOptional
Mfi
Mlr
Under left side of dashBody ground, via main wire harness
23-20
www.emanualpro.com

under-dash Fuse/Relay Box:
Fuse Capacitywir6 ColorCircuit(sl Protocted
SRS unit (VB)
Power window relay
Integrated Control Unit
ABS indicator light
A/T gear position indicator light
Clock ('98 - 00 models)
Cruise indicator light
Gauge assembly
Interlock control unit (A,/T)
Keyless door lock control unit ('98 - 00 models)
Power door lock control unit
Shift lock solenoid (lVT)
SRS indicator light
Integrated control unit ('98 - 00 models)
Integrated control unit (via windshield wiper switch)
Windshield washer motor (via switch)
Windshield wiper motor
Front accessory socket
Rear accessory socket relay
Option connector (ACC)
Audio unit
Not used
Option connector (dash lights)
Integrated control unit
Ashtray light
A,/T gear position indicator light
Audio univclock ('97 model)
Audio unit ('98 - 00 models)
Clock ('98 - 00 models)
Cruise indicator light
Cruise main switch light
Dash lights brightness control unit
Gauge lights
Hazard warning switch light
Heater control panel
Power window master switch light ('99 - 00 models)
Integrated control unit
ECM ('98 - 00 models: M/T)
PCM (4./T)
PGM-Fl main relay
Left front pa.king light
Left front side marker light
Left rear side marker light
Left taillight
License plate light
Right front parking light
Right front side marker light
Right rear side marker light
Right taillight
Trailer lighting connector
lgnition key light
lgnition key light control unit ('97 model)
Interlock control unit (via ignition switch)
Key interlock solenoid
25
PNK
;
10 A
7.5 A
7.5 A
28
10A
10A
7.5 A
204
7.5 A
7.5 A
GRN/BLK
YEUGRN
YEURED
a, olrL"
29
30
BLU,ryVHT
RED/GRN
7.5 AWHT/G R N
23-45
www.emanualpro.com

BLKG401
GroundWir€ ColorComponent or Circuits Grounded
ABS indicator circuit
ABS control unit
Ashtray light
A/T gear position indicator dimming circuit
Brake fluid level switch
Clock ('98 - 00 models)
Clutch inrerlock switch (M/T)
Clutch switch (Mff)
Cruise main switch
Cruise indicator circuit
Cruise control unit
Dash lights brightness controller
Data iink connector
Daytime running rights control unit (Canada)
Front accessary socket
Gauge and indicators
Heater control panel
lgnition key light control unit ('97 model)
lgnition key switch
Integrated control unit
Interlock control unit (Ay'T)
Parking pin switch {A,/T)
Power window relay
Rear accessary socket relay
Bear window defogger relay
Rear window wiper control unit ('97 model)
Service check connector
Spotlights
SRS indicator circuit
Turn signal/hazard relay
Windshield wiper motor
Windshield wiper/washer switch- plus everything grounded through G402
ABS control unit
Blower motor relay
Blower motor high relay
ELD unit (USA)
Power transistor- plus everything grounded through G401
BLKG402
{cont'd)
23-47
www.emanualpro.com

Gauge Assembly
Circuit Diagram (cont'd)
GAUGE ASSEMBLY
REARCEILINGLIGHT
TAILGATELATCHswtTcH
rCLOSED I Glass open ItoPEN : Glass closed I
fCLoSED rTailsate open II0PEN iTailsateclosed.J
23-60
BLK
T
G552tlsA)-
AI Jl
I SRAKE FLUIOI LEVET SWITCHI fCLOSED . Floal down)
lLoPEN . Floal up J
BLK
+
G401G402
ABSCONTROLUNIT
PREVIOUSPAGE
a1
\J
BRAKESYSTEMLIGHTl1.4Wl
\
./
SEATBELTREMINDERLIGHT(1.4W)
\/'
7\
\
TAILGATEINDICATORLIGHT{1.4W}
Gnru;neo I f7 |
I i oo,,#, i| | RUI\N|NG 0GHTS I
I L__c_o!l!g_yI'__l
I t
rcanada)
l\
-l I
BED
RED
B6
'BLU
I INTEGRATEDI coNTRoLI UN|T
lv
IItt
r-IBLU
www.emanualpro.com

Integrated Gontrol Unit
Circuit Diagram -'97 Model
UNDER.HOOD FUSEi RELAY 8OXBATTEFYI No.4' {'004) \0.d2'40A) |
cr*"
l__*l;;T
w_T ELK +!v_T
I H-uTr.r--i=r-
GFNi BLK
lo,,.h WINDSHIELD( il) WASHEB
Y
SWITCH
WHTiBLK
I
l-IVWHT]BLK WINDSHIELDI WASHERI MOTOB
WINDSHIELD WIPER/WASHEF 9WTTCH ,
OFF/INT INT
VV
tltltl
tl
BLUMHT
VWINDSHIELDWIPERMOTOR(As)
ag
3
YEL
RED/BLU
DRIVER'SSEATBELTswtTcHf CLOSED r Unbuckled )(OPEN :Buckled -.1
BEMINDEBLIGHT(r 4w)
BLK
G401
BL(I-tr-l
G552
23-64
tGNITtON SW lCrl
BLKryEL
KEY.IN/SEAT BELTand LIGHTS-ONBEMINDER CIRCUITNTERMITTENT WIPER RELAY CIRCUlT
www.emanualpro.com

Integrated Control Unit
UNOER,HOOD FUSE/BELAY 8OX
N0.41 (100A) N0.42 (40A)
Circuit Diagram -'98 - 00 Models
EATTERY
@*"WHT/BLK -....+ WHT
WHT/RED
IJNDER DASH FUSEi BELAY BOX
WINDSH ELD W PER/gsHERlIrTcH .
OFF/ NT INT
f7 f7
tltl
tl
tlBLU/BLK YEUBLU
GRN/BLK
lo/.Fn WINDSHIELD( il) WASHEF
Y
SWITCH
WHT/BLK
REASWINDOWWIPERMOTOR
f7
ILT GRN
t,,
-9
INTEGFATED coNTsoL UNIT I 85 I 83
23-66
8LK
G401G402
WHT/BLKWINDSHIELDWASHEFMOTOR
INTERIT,IITTENT WIPER RELAY CIRCUITNEAF WINDOW INTERMITTENTWIPER RELAY CIRCUIT
www.emanualpro.com

GRY
IGRN
I
rql)
Y4-orotI POSTT1ON SWTTCH (A/T)I (cLosED In posrlion Eor NII . CLUTCNI INTERLOCKI swrTcH (M,T)I /CLOSED :Clulch Dedal\
| \lullydeprsssed I
II8LK
{
Gl01 (A,T)
f;iillrvrr
-"'-},,,,,"
Y l1eff E
v**JT"
g
' BFAKE FLUIDLEVEL SWITCH'PARKING BRAKEswrTcH (usA)
A8A6 INTEGRATED CONTROL UNIT
KEY]N/SEAT BELT and LIGHTS.ONREMINDER CLRCUIT
COMBlNATIONLIGHT SWIlCH
\-7
IREO/GFN
KEYLESS/POWERDOOB LOCKCONTROL UNlT
V
GFN/nED+-]
LTGRN/R€D LT GRN/RED
tl
d[' 4P'\\s.i
EF's l*'n IFF^I'
13fft" l39P*:Door oper ) | fCLOSED. Doo'open ) | fCLO#D. Door ooe. ). Door dos€d,
I
\oPE . 000' closed,
|
\oPE Door ciosed,
ll-- --
,,,[:
ltrh::ffIxl,,'.l'"
l*,*,J IBLU/ BED I
AA
Y Y*,u,.,
I cvro | Bft_oi|l
sl:$P)l lHfi.#' Hrtrff"% ) l
(3!?i".
TI:l
G40tG402
6
DRIVER'SSEATBELTswrTcHrcLosED(OPEN
YEL
RED/BLU
SEAT EELTREM NDERLIGHT(1.4W)
\-
i
I
:
*,
/BLU RED/BLU
q
FEO/BLU
I
dF)
Y*lsE
13fr
l(3BtK
4
www.emanualpro.com