Honda CR-V 1997 Service Manual page 419

EVAP control canister vent shut
valve test.
(The continuation of OTC P1456
troubleshooting.)
Check the EVAP control canister
vent shut valve:
1. Disconnect the vacuum hose
from the EVAP three way valve,
and connect a vacuum pump
to the hose.
2. Turn the ignition switch ON
(JI).
3. Apply vacuum to the hose.
"'-
NO
Does the valve hold vacuum?
./
YES
Check the EVAP control canister
vent shut valve:
1.
Turn the ignitio n switch OFF.
2. Disco nnect the EVAP control
canister vent shut valve 2P
connector.
3. Check for continuity between
the EVAP control canister vent
shut valve 2P connector termi·
nal NO.1 and body ground.
"
NO
Is there continuity?
./
YES
Check for a short in the wire
IVSVline):
1.
Disconnect the
ECM / PCM
connector A (32P).
2. Check for continuity between
the EVAP control canister vent
shut va lve 2P connector termi·
nal No.1 and body ground.
"'-
YES
Is there continuity?
./
NO
Substitute a known-good ECMI
PCM and recheck. " symptom!
Indication goes away, replace
the original ECM/PCM.
EVAP
WAY
VALVE
I
I
VACUUM
PUMP/GAUGE, 0 - 30 in.Hg
A973X - 04t -
XXXXX
~ I
EVAP
CONTROL
THREE \
-t1
!
r
~
. .
~c)
CANISTER
EVAP control canister vent shut
valve is OK . Do the vacuum
hoses and connections test (see
page "-2'8).
Replace the eVAP controt canister
vent shut valve and O-ring.
Repair short in the wire between
the ECM/PCM IA" and the EVAP
control canister vent shut valve.
EVAP CONTROL
CANISTER VENT SHUT
VALVE 2P CONNECTOR 1C36')
VSV
r 2
~
ILT GRN/WHT)
Wire side of female terminals
EVAP
CONTROL
CANISTER
VENT
SHUT
VALVE
O-RING
cb.-+---
Replace.
(cont'dl
11-217