1997 HONDA CIVIC Workshop Manual

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Page 505 of 2189

HONDA CIVIC 1997 6.G Workshop Manual Fuel Supply System
Fuel Pump
Testing
!@ Do not smoke during the test, Keep open
flame away from your work atea,
lf you suspect a problem with the fuel pump, check that the
fuel pump actually runs; whe

Page 506 of 2189

HONDA CIVIC 1997 6.G Workshop Manual I
PGM-FlMain Relay
Description
The PGM-Fl main relav actuallv contains two individual
relays. This relay is located at the right side of the cowl.
One relay is energized whenever the ignition is on wh

I
PGM-FlMain Relay
Description
The PGM-Fl main relav actuallv contains two individual
relays. This relay is located at the right side of the cowl.
One relay is energized whenever the ignition is on which
supplies the battery voltage to the ECM/PCM, power to
the luel iniectors, and power for the second relay. The
second relay is energized lor two seconds when the igni-
tion is switched ON (lll, and when the engine is running,
to supply power to the luel pump.
PGM-FIMAIN RELAY
J
I
t
FUEL PUMP
Relay Testing
NOTE:
. It the engine starts and continues lo run. the PGM Fl
main relay is OK.
. Use the terminal numbers below;
ignore the terminal numbers molded into the relay,
1. Remove the PGM Fl main relay.
2. Attach the battery positive terminal to the No. 2 ter-
minal and the battery negative terminal to the No 1
terminal of the PGM-Fl main relay. Then check for
continuity between the No.5 terminal and No 4ter-
minal of the PGM Fl main relay.
. lf there is continuity, go on to step 3.
. lf there is nocontinuity, replacethe PGM-Fl main
relay and retest.No. 3No. 1
To lGN. 1
To GROUND
To ST. SWITCH
To ECM/PCM {A161
To 8AT O
To ECM/PCM{(a11, A241, (81. B9l*l
To FUEL PUMP.r '99 model
3.Altach the batterv positive terminal to the No.5 ter-
minal and the battery negative terminal to the No. 3
terminal of the PGM-Fl main relay. Then check that
there is continuity between the No. 7 terminal and
No. 6 terminal of the PGM-Fl main relay.
. lf there is continuity, go on to step 4
. lf there is nocontinuity, replacethePGM-Fl main
relay and retest.
Attach the battery positive terminal to the No. 6 ter-
minal and the battery negative terminal to the No. 1
terminal of the PGM Fl main relay. Then check that
there is continuity between the No. 5 terminal and
No. 4 terminal of the PGM-Fi main relay.
. lf there is continuity, the PGM-Fl main relay is OK.
lf the fuel pump still does not work, go to Harness
Testing on the next page.
. lf there is no continuity, replace the PGM Fl main
4.
(cont'd)
11-237
relay and retest.

Page 507 of 2189

HONDA CIVIC 1997 6.G Workshop Manual Fuel Supply System
PGM-FI Main Relay (contdl
Circuit Troubleshootin g
PGM.FI MAIN RELAY 7P CONNECTOR {C443)
GND{8LK)
Wire side of female terminals
/BLK}
- Engine will not start.- lnsoection of PGM-FI

Page 508 of 2189

HONDA CIVIC 1997 6.G Workshop Manual JI
I
- Repair open or 3hort in the
wire bstw€er the lGM-Fl mainrolsy .nd the No. 31 STARTERSGNAL 17.5 A) tuse.- Reolace the No. 31 STARTER
SIGNAL (7.5 Al fu3o in the
unde.-dash tusg/rolav box.
ls th

Page 509 of 2189

HONDA CIVIC 1997 6.G Workshop Manual Fuel Supply System
- Repair op€n or short in thewir€ betlveen the PGM-FI mainrelay and the No. 31 STARTERSIGNAL 17.5 A) fuse.- RoDlace the No. 31 STARTERSIGNAL {7,5 Al tuse in theunder-dash luse/r

Page 510 of 2189

$HONDA CIVIC 1997 6.G Workshop Manual IFuelTank 96 - 98 models: Replacement I 1. Relieve the fuel pressure (see pages \1-230 23ll 2. Remove the seat cushion (see section 20). 3. Remove the access panel from the floor 4. Disconnect th$

Page 511 of 2189

HONDA CIVIC 1997 6.G Workshop Manual Fuel Supply System
Fuel Tank {contdl
39 - (xt models:
Replac6ment
o
@ Do not smoke whire working on fuer system. Ke€p open frama away trom your work area.
1. Relievethefuel pressure (see pages 11-2

Page 512 of 2189

$HONDA CIVIC 1997 6.G Workshop Manual Intake Air System \JSystem DescriPtion The system supp|ies air for a|| engine needs |t consists of the intake air pipe Air C|eaner (ACL}, intake air duct, Thrott|e Body (TB), ldle Air control (lAc)$

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