2002 HONDA CIVIC fuse box

Fuel Pump Circuit Troubleshooting
lf you suspect a problem with the fuel pump, check that
the fuel pump actually runs; when it is on, you will hear
some noise if you listen to the fuel fill port with the fuel
fill cap removed. The fuel pump should run for 2
seconds when the ignition switch is first turned on. lf
the fuel pump does not make noise, check as follows:
1. Turn the ignition switch OFF.
2. Remove the glove box {see page 20-63), then
remove the PGM-FI main relay 2 (A).
Turn the ignition switch ON {ll).
Measure voltage between PGM-Fl main relay 2 5P
connector lerminal No. 5 and body ground.
PGM.FI MAIN RELAY 25P CONNECTOR
IGPl(YEL/BLK}
Wire side of female terminals
ls there battery voltage?
YES-Go to step 5.
NO Repair open in the wire between the PGM'Fl
main relay 1 and the PGM-Fl main relay 2.t
3.
5. N4easure voltage between PGM-Fl main relay 2 5P
connector terminal No. 1 and body ground.
PGM.FI MAIN RELAY 25P CONNECTOR
Wire side oJ female terminals
ls there battery voltage?
YES Go to step 6.
NO Repair open in the wire between the under-
dash fuse/relay box and PGM-Fl main relay 2.1
6. Turn the ignition switch OFF.
7. Disconnect ECM connector E (31P).
8. Check for continuity between PGM-FI mainrelay2
5P connector terminal No. 3 and ECM connector
terminal E1.
PGM-FI MAIN RELAY 2 5P CONNECTOB
Wire side of female terminals
ls there continuity?
YES-Go to step 9.
NO-Repair open in the wire between the PGM Fl
main relay 2 and the ECM (E1).1
IMOFPR(GBN/YEL)
(cont'd)
11-141
Et2lFtxm
7-
z
ECM CONNECTOR E 131P}

Fuel Supply System
Fuel Gauge Sending Unit Test
Special Tools Required
Fuel sender wrench 07XAA-001010A
NOTE; For the fuel gauge system circuit diagram, referto the Gauges Circuit Diagram (see page 22-58||.
1. Checkthe No. 10 fUETER {7.5A)fuse in the under-
dash fuse/relay box before testing.
2. Do the gauge drive circuit check (see page 22-56|l.
' lf the fuel gauge needle sweeps from minimuni
to maximum position and then returns to the
minimum position. the gauge is OK. Go to step 3.. lf the fuel gau ge need le does not sweep from
minimum to maximum position position and
then return to the minimum position, replace thegauge assembly and retest.
3. Turn the ignition switch OFF.
4. Remove the rear seat cushion {see page 20-80).
5. Remove the access panel (A)from the floor.
6. Disconnect the fuel pump 5P connector {B).
-ztr
11-156
7. Measure voltage between fuel pump 5P connectorterminals No. 1 and No. 2 with the ignition switchON (ll). There should be battery voltage.
. lf the voltage is as specified, go to step 8.. lf the voltage is notasspecified,checkfor:
- an open in the YEUBLK or BLK wire.- poor ground (G551).
FUEL PUMP 5P CONNECTOR
Wire side of female terminals
Turn the ignition switch OFF. Remove the No. 9BACK UP (7.5A)fuse from the under-hood fuse/
relay box for at least 10 seconds, lhen reinstall it.
Install a 2 Q resistor between fuel pump 5P
connector lerminals No. 1 and No. 2, then turn the
ignition switch ON (ll).
FUEL PUMP 5P CONNECTOR
-VVV-
29RESISTOR,
=-a
{Y
\
//,(elrt \
\45/
{YEL/BLK)
Wire side of female terminals

10. Checkthatthe pointerof thefuel gauge indicates"F".
. lf the pointer does not indicate "F", replace the
ga uge.. lf the pointer indicates "F", inspect the fuel
gauge sending unit.
NOTE: The pointer of the fuel gauge retu rns to the
bottom of the gauge dial when the ignition switch
is OFF, regardless of the fuel level. -
11. Relieve the fuel pressure (see page 11-144\.
12. Remove the fuelfill cap.
13. Disconnect the quick-connect fittings from the fuel
pump.
14. Using the special tool, loosen the fuel tank unit
locknut (A).
A93Nm{9.5 ksf.m,69 lbf.ft}
15. Measure resistance between the No. 1 and No.2
terminals with the float at E (EN4PTY), 'l12 \HALF
FULL), and F {FULL) positions.
lf you do not get the following readings, replace the
fuel gauge sending unit {see page 1'1-163).
Float
Position
F'U2LOWE
Resistance
{0)
11
to 13
68,5
to 74.5
114.4
to 126.6
130
to 132
NOTE: Remove the No. 9 BACK UP (7.5A) fuse from
the under-hood fuse/relay box for at least 10
seconds after completing troubleshooting,
otherwise it may take up to 20 minutes for the fuel
gauge to indicate the correct fuel level.
11-157

Fuel Supply System
1.
4,
Low Fuel Indicator Test
Do the fuel gauge sending unit test (see page 11,
rcol.
. lf the system is OK, go to step 2.. lf the system has any malfunction, repair it.
Turn the ignition switch OFF. Remove the No. 9
BACK UP (10A) fuse from the under-hood fuse/
relay box for at least 30 seconds, then reinstall it.
Turn the ignition switch ON (ll) with the float at the
E (EMPry) position.
. lf the low fuel indicator is on, go to step 4.. lf the low fuel indicator is not on, refer to the low
fuel indicator Circuit Diagram (see page 22-58)
and check the circuit.
Turn the ignition switch OFF. Remove the No. 9
BACK UP (10A) fuse from the under-hood fuse/
relay box for at least 30 seconds, then reinstall it.
Lift the float above the LOW position.
. lf the lowfuel indicatorgoes off,the system is OK.. lf the low fuel indicator is still on, refer to the low
fuel indicator Circuit Diagram {see page 22-58),
and check the circuit.
11-158
\,

Component Location Index
UNDER.HOODFUSE/RELAY BOX
EPS CONTROL UNITEPS Control Unit Removal/lnstallation,page 17 -67
UNDER.DASH FUSE/RELAY BOX
-,'/.,....
'.,i,
X ]
DATA LINK CONNECTOR I16P)
TOROUE SENSOR
STEERING GEARBOXSteering Gearbox Removal, page 17-51Steering Gearbox Overhaul, page 17-55Steering Gearbox Installation, page 17-63
Removal/lnstallation,page l7-49
GAUGE ASSEMBLY
MOTOR
17-17

EPS Components
DTC Troubleshootang (cont'dl
DTC 62: EPS Control Unit Internal Circuit
(Fail-safe Relay Stuck ON)
'1. Clear the DTC.
2. Start the engine.
Does the EPS indicator come on?
YES-Go to step 3.
NO-Check for loose wires or poor connections. lf
the connections are good, the system is OK at this
time.I
3. Stop the engine, and verify the DTC.
ls DTC 62 indicated?
YES-Check for loose or poor connections at the
EPS control unit. lf the connections are good,
substitute a known-good EPS control unit. lf the
symptom/indication goes away, replace the
original EPS control unit and recheck.l
NO-Perform the appropriate troubleshooting for
the code indicated. t
17-44
DTC 64: Battery Voltage is Excessively Low
(Fail-safe Relay Contact Failure and Motor
Voltage FallOff)
1. Clear the DTC.
2. Start the engine.
Does the EPS indicatot come on?
YES Go to step 3.
NO Check for loose wires or poor connections. lf
the connections are good, the system is OK at this
trme.l
3. Stop the engine, and verify the DTC.
ls DTC 64 indicated?
YES Go to step 4.
NO Perform the appropriate troubleshooting for
the code indicated.
4. Check the No. '18 (604) fuse in the under-hood fuse/
relay box, and reinstallthe fuse if it is OK.
Is the f use OK?
YES Go to step 5.
NO Replace the fuse and recheck.l
5. Disconnect EPS control unit connector A (2P).
6. Measure the voltage between EPS control unit
connector A (2P) terminal No. 1 and body ground.
-Blwt{r/Bl.ur Hl
\9
I
ls there battety voltage?
YES - Check for loose or poor connections at the
EPS control unit connectors, and check for a poor
ground at G 15 1. lf necessary, substitute a known-
good EPS control unit and recheck.l
NO Repair open in the WHT/BLU wire between
the No. 18 (60,4)fuse and EPS control unit.l
(

EPS Indicator Circuit Troubleshooting
1.Turn the ignition switch ON (ll), start the engine,
and watch the EPS indicator.
Does the EPS indicator come on?
YES lf the EPS indicator comes on and goes off, it's
OK. lf the EPS indicator stays on or blinks. go to
step 12.
NO Go to step 2.
Turn the ignition switch OFF, then ON (ll) again,
and watch the brake system indicator,
Does the brake system indicator come on?
YES-Go to step 3.
NO Repair open in the indicator power source
circuit.l. Blown No. 10 (7.5A)fuse.
. Open in the wire between the No. 10 (7.5A) fuse
and gauge assembly.. Open circuit inside the under-dash fuse/relay box,. Faulty gauge assembly.
Turn the ignition switch OFF,
Connect a jumper wire between the gauge
assembly 22P connector terminal No. 13 and body
ground, then turn the ignition switch ON (ll).
GAUGE ASSEMBLY 22P CONNECTOR (Blue connector)
Wire side of female terminals
Does the EPS indicator come on?
YES-Go to step 5.
NO Inspect the EPS indicator bulb, if the bulb is
OK, replace the bulb circuit board in the gauge
assembly.l
3.
4.
5. Turn the ignition switch OFF.
6. Disconnect EPS control u n it connector C (20P).
7. Turn the ignition switch ON (ll).
8. Connect EPS control unit connector C (20P)
terminal No. 6 to body ground with a jumper wire.
Wire s d€ oflemale16rmina s
Does the EPS indicatot come on?
YES Go to step 9.
NO Repair open in the wire between the gauge
assembly and the EPS control unit.l
Turn the ignition switch OFF.
Disconnect EPS control unit connector A (2P),
Check for continuity between EPS control unit
connector A terminal No. 2 and body ground.
EPS CONTROL UNITCONNECTOA A I2PI
wire s de oftemale terminals
ls there continuity?
YES Check for loose or poor connections at the
EPS control unit. lf the connections are good,
substitute a known-good EPS control unit. lf the
symptom/indication goes away, replace the
original EPS control unit and recheck.I
NO Repair open in the wire or a bad ground at
G151,t(cont'd)
9.
10.
'l 1.
EPS CONTBOL UNIT CONNECTOB C {2OP)
17-47

EPS Components
I
12.
EPS Indicator Circuit Troubleshooting (cont'dl
Turn the ignition switch OFF.
Disconnect EPS control unit connector C (20P).
Turn the ignition switch ON (ll).
Does the EPS indicator come on?
YES-Repair short to ground in the YEUBLU wire
between the gauge assembly and the EPS control
unit, or replace the bulb circuit board in the gauge
assembly.l
NO-Go to step 15.
Measure the voltage between EPS control unit
connector C (20P)terminal No. 10 and body ground.
EPS CONTROL UNIT CONNECTOR C I2OP)
Wire side of female terminals
ls there battery voltage?
YES-Go to step 16.
NO-Repair open in the wire between EPS control
unit connector C (20P) and the No, 10 (7.5A) fuse. t
13.
14.
17-48
16. Measure the voltage between EPS control unit
connector A (2P)terminal No. '1 and body ground.
EPS CONTROL UNITCONNECTON A (2P}
+B (WHT/BLUI H
Itr
v-L
17.
18,
19.
20.
Wire side of female terminals
ls there battery voltage?
YES-Go to step 17.
NO-Check for a blown No. 18 (604) fuse in the
under-hood fuse/relay box or open/short in the
WHT/BLU wire between the under-hood fuse/relay
box and the EPS control unit.l
Turn the ignition switch OFF.
Reconnect EPS control unit connector A (2P).
Turn the ignition switch ON (ll).
Measure the voltage between EPS control unit
connector C (20P)terminal No. 8 and body ground.
EPS CONTROL UNIT CONNECTOR C (2OP)
Wire side of female terminals
ls therc about 10 V?
YES Check for loose or poor connections at the
EPS control unit. lf the connections are good,
substitute a known-good EPS control unit. lf the
symptom/indication goes away, replace the
original EPS control unit and recheck.l
NO Repair short to ground in the BRN wire
between the data link connector and the EPS
control unit.I