1999 HONDA CR-V Evap bypass

EVAP bypass solenoid valv€ test.
{The continuation of DTC P1457
troubleshooting.l
Check the EVAP bypass 3olenoid
1. Disconnect the vacuLlm hose
from the EVAP two way valve,
and conned a vacuum PUmPto the hose.2. Turn the ignition switch ON (ll).
3. Apply vacuum to the hose
EVAP bvpas3 30lsnoid vrlvo/
EVAP two way v.lve is OK. Do
the EVAP control canisler vent
3hut v.lve te3l (see Psge11'2221.
Does the valve hold vacuum?
Ch6ck the EVAP byp.ss solenoid
'1. Turn the ignition switch OFF
2. Disconnect the EVAP bypass
solenoid valve 2P connector.
3. Check {or continuity between
the EVAP bypass soleno id
valve 2P connector termlnal
No. 2 and body ground
ReDlace the EVAP bypass 3olenoid
valve and O-rings.
Check for a short in lhe wire
{2WBS linel:1. Disconnect ECM/PCM connec
tor A (32P).
2. Check lor continuity betlveenthe EVAP bypass soleno id
valve 2P connector termrnalNo. 2 and body ground.
Rcpsir short in th. wire bgtwoen
the EcM/PCtrl lA3l lnd the EVAP
bypa$ solenoid valvo.ls there continuitY?
Sub3tiiute . known'good ECM/
PCM End recheck. lI sYmptom/
indication goe3 away, tePlace
the original ECM/PCM.
EVAPBYPASSFUELTANKPRESSUBE SENSORSOLENOIDVALVEEVAP TWO WAY
VALVE
VACUUMPUMP/GAUGE,0-30 in.HgA973X -
041 -
xxxxx
EVAP AYPASS SOLENOID
VALVE 2P CONNECTOR (C647}
q
@)
T
t.'-+lt1t?l
| 2wBs
(d1 terul
Y-L
Wire side offemaleterminals
2WBS(BLU}
(cont'd)
11-221
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Canbter system leak test
{The continuation of DTC P1457
trouble3hootin9.)
Chock the EVAP control canistervent shut valve line and connoc'
tonS:1. Turn the ignition switch OFF
2. Connect to three'way tee fit_
tings into the hose from the
EVAP control canister to the
EVAP two way valve. Connect
the fuel tank pressure sensor
to one of the tee fittings and
the vacuum PumP to the other'
3. Remove the vent hose from
the EVAP control canister vent
shut valve and cap the Pon to
seal the fresh air vent Ior the
EVAP control canister.4. Turn the ignition switch ON (ll).
5. While monitoring the FTP
Sensor voltage with the Honda
PGM Tester, or measurangvoltage between ECM/PCM
connector terminals A29 and
C18 slowly PumP the vacuumpump using a stroke every 1 -
2 seconds.6. Continue to PumP vacuum
until that voltage droPs to
approx. 1.5 V.NOTE: Make sure that the
engine coolant temPeraturestillabove 95'F (35'Cland Yourvacuum PumP has no leak
7. Monitor that voltage for 20
seconds.
Check the EVAP Pu.ge control
solenoid valve line and connec-
tions:1. Turn the ignition switch OFF.
2. Disconnect the Purge lane
hose from the EVAP control
canister and Plug the Port3. Turn the ignition switch ON (lli.
4. While monitoring the FTP
Sensor voltage with the Honda
PGM Tester, or measuringvoltage between ECM/PCM
connector terminals A29 and
Cl8 slowly PumP the vacuumpump using a stroke every 1 -
2 seconds.5. Continue to pump vacuum
until that voltage droPs to
approx. 1-5 V.NOTE: Make sure that the
engine coolant temPeraturestill above 95'F (35"C) and Yourvacuum pump has no leak-
6. Monitor that voltage tor 20
seconds.
Doesthe voltage drop to 1.5 V
and holds at least 20 seconds?
lGp€ct the EVAP control cani3tel
vent 3hut valvo line and connec_
tion5.
Inlpect tho EVAP Putge control
solenoid valvo line and connec'
tion3. It th6y lro OK, do the EVAP
two way valve te3t (seo page 11-
2211.
Does the voltage drop to 1.5 V
and holds at least 20 seconds?
Reolace the EVAP conirol canister.
EVAPBYPASSSOLENOIDVALVE
FUEL TANK
EVAPCONTROL
VENTSHUTVALVE
EVAPCONTROLCANISTER
SENSOR
EVAP TWO WAYVALVE
EVAPTHREE
VALVE
ttrrL
ta
VACUUMPUMP/GAUGE,0 - 30 in.HgA973X -
041 -
XXXXX
FITTINGS
ECM/PCM CONNECTORS
A {32P)
PTANK ILT GRN)
c (31Pt
SG2 {GRN/BLK)
Wire side of female terminals
{cont'd)
11-223
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Gonnector ldentification and Wire Harness Routing
Right Side Wire Harness
Connec{or or
Tsrminal
Number of
CavitiesLocationConnests toNotes
c601
c602
c603
c604
6'1
2
2
Behind right kick panel
Right B-piller
Right rear door
Under middle of dash
Right B-piller
Main wire harness (C428)
Front passenger's door switch
Right rear door wire harness (C691)
SRS main harness {C808)
Front passenger's seat belt tensioner
'98 - 00
mooets'98 - 00
models
Rear Bumper Wire Harness
Connector ol
Terminal
Number ot
CavitiesLocationConnocts toNotes
c641
c642
c643
4
2
2
Left quarter panel
Behind rear bumper
Behind rear bumper
Left side wire harness (C566)
Left rear side marker light
Right rear side marker light
Fuel Tank Pressure Sensor Sub-harness - '98 Model
Connector or
Terminal
Number ot
CavitiesLocationConnects toNot63
c645
c646
c647
?
2
Fueltank
Left side of fuel tank
Left side of fuel tank
Left side wire harness (C580)
Fuel tank pressure sensor
Evaporative emission (EVAP) bypass
solenoid valve
High Mount Brake Light Sub-harnoss
Conneslor or
Terminal
Number of
CavitiesLocationConnec-ts toNotes
c651
c652
c653
2
1
1
Top of hatch glass
Top of hatch glass
Top of hatch glass
High mount brake light
Rear wire harness (C617)
Rear wire harness (C618)
23-28
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Power Distribution
Fuse
1
3
5
6
7
I
9
10
11
12
13
14
"^
RED/B LU
RED/GRN
WHT/BLK
RED/VVHT
YEUBLK
RED
GRN/BLK
BLU/BLK
YEVBLK
YEUGRN
RED
BLK/YE L
BLK/VVHT
17
7.5 A
7.5 A
BLVBLU
BLKA/EL
18
19
20
22
7.54
7.54
l0 A
10 A
YEUBLK
YEVRED
BLKAr'YHT
RED /VHT
RED/YE L
Fuse-to-Component(sl Index (numerical sequencel (cont'dl
Under-dash Fuse/Relay Box:
Capacity
10 A
10 A
10 A
10 A
20A
204
15A
204
204
7.5 A'15 A
7.5 A
7.5 A
Wire ColorCircuit{s) Protected
Not used
Not used
Rear window washer motor (via switch)
Rear window wiper control unit ('97 model)
Rear window wiper motor
Daytime running rights resister {Canada)
Right headlight {High beam}
Daytime running rights resister (Canada)
High beam indjcator light
Left headlight (High beam)
Rear accessory socket (via relay)
Left rear power window motor (via switch)
Right rear power window motor (via switch)
Distributor (ignition control module)
Front passenger's power window motor (via switch)
Driver's power window motor {via switch)
Power window master switch (power window control unit)
Turn signal/hazard relay (via switch)
PGM-FI main relay
SRS unit (VA)
Cruise control unit (via switch)
Cruise main switch indicator light
Alternator
Charging system light
ELD unit (USA)
EVAP bypass solenoid valve ('98 - 00 models)
EVAP control canister vent shut valve ('98 - 00 models)
EVAP purge control solenoid valve
Primary HO2S
Secondary H02S
VSS
ABS control unit
Option connector (lG2)
Ay'C compressor clutch relay
Blower motor high relay
Blower motor relay
Condenser fan relay
Heater control panel
Left power mirror actuators (via switch)
Mode control motor
Radiator fan relay
Recirculation control motor
Right power mirror actuators (via switch)
Daytime running lights control unit (Canada)
Back-up lights
Reverse relay (A"/T)
Daytime running lights control unit (Canada)
Right headlight (Low beam)
Left headlight (Low beam)
23-44
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