1996 HONDA CIVIC Workshop Manual

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Page 545 of 2189

HONDA CIVIC 1996 6.G Workshop Manual Emission Control System
Evaporative Emission (EVAP) Controls (contdl
!
FUEL TANKPRESSURE SENSOR3P CONNECTOR {C7921
PTANK
{LT GRN)
sG2{GRN/BLK)
Wire side of f€mal€ terminals
{From page 11-275)
Che

Page 546 of 2189

$HONDA CIVIC 1996 6.G Workshop Manual \ 99 - 00 models excepi Dl6Y5 engine with M/T: The scan tool indicates Diagnostic Trouble Code (DTC) P0452: A low voltage problem in the Fuel Tank Pressure sensor. The fuel tank pressure sensor conve$

Page 547 of 2189

HONDA CIVIC 1996 6.G Workshop Manual Emission Control System
Evaporative Emission (EVAPI Controls {cont,dlJ
FUEL TANKPRESSURE SENSORSU8-HABNESS6P CONNECTOR 1C574 tC568)rt
PTANK
{LT GRN}
PTANK
ILT GRN}
Wire side of female terminals
(From

Page 548 of 2189

$HONDA CIVIC 1996 6.G Workshop Manual \ Fue| Tank Pr€ssure sensor 196 Dr6Y8 engine (coupe},,97 D16Y7 angino (coupo: KL mode| 3edan: KL (Lxl modg||,97 Dl6Y8 engine (coupe: all modeb, sedan: Ki model.98all modols) 39 - 0O Dl6Y5 ongins$

Page 549 of 2189

$HONDA CIVIC 1996 6.G Workshop Manual Emission Control System Evaporative Emission (EVAPI Controls (contdl \v ECM/PCM CONNECTOR D {16PI PTANK {LT GRN)SG2 (GRN/BLK} Wire side of female terminals lFrom page 11-2791 Check for an open in the$

Page 550 of 2189

$HONDA CIVIC 1996 6.G Workshop Manual \ 99 - 0O modols except Dl5Y5 engine with M/T: rFo45::n":"tooIindicatesDiagnosticTroub|ecode(DTc)P0453:Ahighvo|tageprob|emintheFUelTankPressure Wire side of temale terminals FUEL TANKPRESSUNE SENSOR$

Page 551 of 2189

HONDA CIVIC 1996 6.G Workshop Manual Emission Gontrol System
(From page 11-281)
Check tor an open in th€ wire(PTANK line):Measure voltage between ECM/PCi/l connector terminals A29and C18.
Repsir open in tho wire betweenECM/PCM {A29} .n

Page 552 of 2189

$HONDA CIVIC 1996 6.G Workshop Manual \ t,96 D16Y8 engine (coup6l,9? Dl6Y7 engine (coupe: KL model, sedan: KL (LX) model)"g7 Dl6Y8 ongine (coupe: all mod- els, sedan: KL model,98-8ll modelsl 39 - 00 Dl5Y5 engine with M/Tl: The scan tool$

\
t,96 D16Y8 engine (coup6l,'9? Dl6Y7 engine (coupe: KL model, sedan: KL (LX) model)"g7 Dl6Y8 ongine (coupe: all mod-
els, sedan: KL model,'98-8ll modelsl 39 - 00 Dl5Y5 engine with M/Tl:
The scan tool indicates Diagnostic Trouble code (DTc) P1456: Evaporative Emission (EVAP) control system leak
detected (fuel tank sYsteml
The scan tool indicates Diagnostic Trouble Code (DTC) P1457: Evaporative Emission (EVAP) control system leak
detected (EVAP control canister system).
Fr4t6l
fF14s7
Possible Causs
. Fuel fill cap
. Vacuum Connections
. Fuel Tank
. EVAP Control Canister Vent Shut Valve
. EVAP Control Canister Vent Shut Valve Circuit
. EVAP Purge Control Solenoid Valve
. EVAP Purge Control Solenoid Valve Circuit
. EVAP Bypass Solenoid Valve
. EVAP Bypass Solenoid Valve Circuit
. Fuel Tank Pressure Sensor
. Fuel Tank Pressure Sensor Circuit
. EVAP Control Canister
. Throttle Body
Troublsshooting Flowchart
VACUUMPUMP/GAUGE,0 - 30 in.HgA973X - 041 -
xxxxx
I
EVAPCONTROL
.4, cANrsrER
re ./ VALVE
{S----r*::n
\(cont'd)
- The MIL ha3 been rePofted
on.- DTC P1456 or P1457 is stored.
Check the EVAP control canbtol
vent shut valve:1. Disconnect the vacuum hose
Irom the EVAP three waY
valve and connect a vacuurnpump to the hose.
2. Remove the EVAP control
canister vent shut valve Irofi
the canrster.3. Turn the ignition switch ON (lli
4. Apply vacuum to the hose.
Chock for . shon in the wire(VSv linel:Disconnect the 2P connector {rom
the EVAP control canister vent
Does the valve hold vacuum?
Repair short in the wir€ betwcen
the EVAP control canister vent
shut v.lve and tho ECM/PCM
tA29|.
Does the valve hold vacuum?
Check the EVAP control canister
vent shui valve:1. Turn the ignition switch OFF.
2. Connect ECM/PCM connectorterminal A29 to body ground
with a iumPer wire.
3. Turn the ignition switch ON (ll).
4. Applyvacuum to the hose
Reohce the EVAP control canis-
ter vent shttt valve.
Does the valve hold vacuum?
ECM/PCM CONNECTOR A {32P)
37I9t01t't2t3t5t6ItItt9202a2a
25aA
ILT GRN/W{T) I JUMPER WIRE
Wire side of femll terminals
(To page 11-284i(To page 11 284)
11-283

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