idle air HONDA CIVIC 2003 7.G Owner's Guide

PCV System
DTC Troubleshooting
DTC P1505: PCV Air Leakage
1. Reset the ECM (see page 11-4).
2. Start the engine. Hold the engine at 3,000 rpm with
no load (in neutral) until the radiator fan comes on
3. Let the engine idle tor al least 40 seconds with the
throttle fully closed.
4. Check for a DTC P1505 with the scan tool
ls DTC P1505 indicated?
YES-Check these parts for vacuum leaks l
. PCV valve. PCV hose. EVAP canister purge valve
. Throttle body. Brake booster hose
NO - Intermittent failure, system is OK at this
time.l
11-168

28.
29.
ls thete continuity?
YES-Go to step 28.
NO-Replace the EVAP canister vent shut valve (A)
and o-ring (B).1
Disconnect ECM connector E (31P).
Check for continuity between EVAP canister vent
solenoid valve 2P connector terminal No. 2 and
body ground.
EVAP CANISTER VENT SHUTVALVE 2P CONNECTOR
Wire side o{ female terminals
ls there continuity?
YES-Repair short in the wire between the EVAP
canister vent shut valve and the ECM (E21).1
NO Update the ECM if it does not have the latest
soflware, or substitute a known-good ECM, then
recheck (see page 11-6). lf the symptom/indication
goes away with a known-good ECM, replace the
original ECM.I
30.
Vacuum Hoses and Connections Test
Do the fuel tank vapor control valve test (see page
1 1-187).
ls the fuel tank vapot control valve OK?
YES-Go to step 31.
NO Replace the fueltank vapor control valve.l
Tighten the fuel cap 3 "clicks", then monitorthe
FTP sensor readings with the Honda PGM Tester.
Start the engine. and let it idle for 5 minutes.
Check the FTP sensor readings.
ls the reading above 0.5 kpa (4 mm Hg, 0.16 in.
Hg) pressure, or about 3 V?
YES Update the ECM if it does not have the latest
software, or substitute a known-good ECM, then
recheck {see page 1 1-6). lf the symptom/indication
goes away with a known-good ECfvl, replace the
original ECM.t
NO Check the following parts for leaks:l
. Fueltank (A)
. Fuel fill cap (B)
. Fuel fill pipe (C)
. Fueltank vapor control valve(D). Fueltank vapor recirculation valve (E)
. Fueltank vapor recirculation tube (F)
. Fueltank vapor signaltube (G)
. Fueltank vapor control venttube(H). FTP sensor (J)
- Repair or replace any leaking parts.
5t.
11-179

28. Connect the transmission ground cable (A).
8 x 1.25 mm
B
22 N.m (2.2 kgf.m, 16lbf.ft)
[---.-.---e
e
6x1,0mm9.8 N.m{1.0 kgl m. 7 lbf ftl
29.
30.
8x125mm22Nm12.2 kgt m, 16 lbf ft)
lnstall the battery tray (B).
Installthe intake air duct (see step 36 on page 5-14).
Installthe air cleaner housing (see step 39 on page
5-15).
Installthe intake manifold cover (see step 41 on
page 5-15).
Install the battery. Connectthe positive (+) cable
first, then the negative (-)cable to the battery.
Reflllthe transmission fluid (see page 13-3).
Test-drive the vehicle.
Check the clutch operation.
Check the front wheel alignment (see page 18-4).
Enter the anti-theft code for the radio, then enter
the customer's radio station presets.
Do the engine control module (ECM) idle learn
procedure (see page 11-139).
32.
33.
34.
35.
36.
31.
38.
39.
13-13

6.
5. Remove the 8 mm flange bolts in a crisscross
Dattern in several steos.
Remove the transmission hanger A, and
transmission hanger B.
Remove the 32 mm sealing cap (A).
Expand the 72 mm snap ring (B) on the
countershaft ball bearing, and remove it from the
groove using a pair of snap ring pliers.
Remove the transmission housing (C) and
14 x 20 mm dowel pins (D).
7.
L
10. Remove the reverse lock cam.
g
t.l Y
g
11.Remove the reverse idler gear {A) and reverse gear
shaft {B).
(,
^A
(cont'd)
13-17

Steering
Steering Wheel Installation
1. Before installing the steering wheel, make sure the
front wheels are aligned straight ahead, then center
the cable reel (A). Do this by first rotating the cable
reel clockwise until it stops. Then rotate it
counterclockwise about two and a half turns. The
arrow mark (B) on the cable reel label should point
straight up.
Position the two tabs (A) of the turn signal
canceling sleeve (B) as shown. Installthe steering
wheel onto the steering column shaft, making sure
the steerlng wheel hub (C) engages the pins (D) of
the cable reel and tabs of the canceling sleeve. Do
not tap on the steering wheel or steering column
shaft when installing the steering wheel.
17-8
3. Install the steering wheel nut (A), and tighten it to
the specified torgue.
A_B39 N.m (4.0 kgf m.29lbt ftl
Connect the cruise control set/resume switch
connector (B). fvlake sure the wire harness is routed
and fastened properly.
Install the driver's airbag, and confirm that the
system is operating properly {see page 23-113).
Check the horn, turn signal canceling and cruise
control switches for proper operation.
Reconnect the battery and do the following:. Do the engine control module (ECM) idle learn
procedure (see page 1l-139),. Power window control unit resetting procedure
\see page 22-1281.. Enter the anti-theft cord for the radio, then enter
the custmer's radio station presets.. Set the clock.
{
7.
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;. _,:!
'' '1i::..'.' l

EPS Gomponents
7.
8.
DTC Troubleshooting (cont'dl
Turn the ignition switch OFF, and disconnect EPS
control unit connector C (20P).
Start the engine, and let it idle.
Measure the voltage between EPS control unit
connector C {20P) terminal No.19 and body ground.
EPS CONTROL UNIT CONNECTOR C {2OP)
ls there about 6 V at idle? (With the meter set lol
t requency, is there 33 Hz per 1,000 engine rpm? )
YES Check for loose EPS control unit connectors.
lf necessary, substitute a known-good EPS control
unit and recheck.l
NO Repair open in the wire between the EPS
control unit and the ECM.I
Turn the ignition switch OFF, and disconnect EPS
control unit connector C (20P).
Start the engine, and let it idle.
9.
10.
Wire side of {emale terminals
17-34
11. Measure the voltage between EPS control unit
connector C (20P)terminal No. 19 and body ground.
EPS CONTROL UNIT CONNECTOR C {2OPI
Wire side of female terminals
ls there about 6 V at idle? (With the metet set tor
trequency, is therc 33 Hz per 1,000 engine rpn?)
YES Check for loose EPS control unitconnectors.
lf necessary, substitute a known-good EPS control
unit and recheck.I
NO Go to step '12.
Turn the ignition switch OFF.
Disconnect the ECM connector E (31P) connector.
12.
13.
!

Dashboard
Dashboard Removal/lnstallation
(cont'd)
11. From outside the driver's door, remove the caps (A),
then remove the bolts (8, C, D), and lift up on the
dashboard (E) to release it from the guide pins
(F. G) on the body.
Fastener Locations
B>rBolt.3 C>: Bolt,2 D>: Bolt,2
m6[-,,,,",",,-,F6't---'' ffi'!--v{/- Kr* w-
B
$7:
^/761:
/,-,. r:; 8 x 1.25 mm22Nm(2.2 kgf.m, 16lbf.ft)
13.
{2.2 kgf m, 16lbf.ftl
Carefully remove the dashboard through the front
door opening.
lnstall the dashboard in the reverse order of
removal, and note these items:
. Make sure the dashboard fits onto the guide pins
correctly.. Apply liquid thread lock to the dashboard
mounting bolts of the middle portion before
reinstallation.. Before tightening the bolts, make sure each wire
harness and control cables are not pinched.
. Make sure the connectors are plugged in
properly, and the antenna lead is connected
propeny.. Reconnect the negative cable to the battery.. Enter the anti-theft code for the radio, then enter
the customer's radio station presets.
. Reset the clock.. Do the ECM/PCM idle learn procedure isee page
1 '1-139).
20-68
Steering Hanger Beam
Replacement
NOTE: Put on gloves to protect your hands.
1, Remove the dashboard (see page 20-66).
2. Remove these items from the dashboard:
. lnstrument panel (see page 20-59). Driver's pocket (see page 20-60). Gauge assembly (see page 22-64). Passenger's airbag (see page 23-'l 14)
Remove the screws, then remove the glove box
striker (A).
Fastenea Locations
):Screw,4
\

Seats
Front Seat Removal/lnstallation (cont'dl
Lift up the front seat, then detach the harness clip(A). and disconnect the seat belt switch connector(B) and seat belt buckle tensioner connector (C). lf
equipped with a side airbag, disconnect the side
airbag connector (D), and on the passenger's seat,
disconnect the OPDS unit connector (E). The
passenger's seat is shown, the driver's seat is
similar except it has no OPDS unit connector.
With the help of an assistant, carefully remove the
front seat th rough the front door opening.
Installthe seat in the reverse order of removal, and
note these rtems:
. l\4ake sure each connector is plugged in properly.
. Apply liquid thread lock to the seat mounting
bolts before reinstallatlon.. Reconnect the negative cable to the battery.. Enter the anti-theft code for the radio, then enter
the customer's radio station presets.
. Reset the clock.. Do the ECM/PCM idle learn procedure (see page
1 1-139).
6.
7.
20-72

Heating and Air Conditioning
Radiator and Condenser Fans
Common
(cont'dl
Circuit Troubleshooting
9. Using a Backprobe Set, measure the voltage
between the No. 6 terminal of ECN4 connector B
{24P) and body ground with the ECM connectors
connecteo.
ECM CONNECTOR B {24P}
ls there battery voltage?
YES UDdate the ECM if it does not have the latest
so{tware, or substitute a known-good ECM, then
recheck (see page 11-6). lf the symptom/indication
goes away with a known-good ECM, replace the
original ECM.I
NO Repair open in the wire between the radiator
fan relay, the condenser fan relay and the ECM. t
Wire side of female terminals
21-30
Compressor Clutch Circuit
Troubleshooting
1. Check the No. 1 (20A) fuse in the under-hood
fuse/relay box, and the No. 14 {10A)fuse in the
under-dash fuse/relay box.
Are the tuses OK?
YES Go to step 2.
NO Replace the fuse(s), and recheck.I
2. Check the engine coolant temperature, the throttleposition sensor, and the idle speed (use the Honda
PGM Tester PGM-Fl data list if possible).
ls the coolant temperaturc above nomal, the
throttle position sensor rcading too high, or the
idle speed too low?
YES Troubleshoot and repair the cause of the
high engine coolant temperature, high throttle
position sensor reading, or low idle speed.l
NO-Go to step 3.
3. Remove the compressor clutch relay from the
under-hood fuse/relay box, and test it (see page 22-
51 ).
ls the relay OK?
YES Go to step 4.
NO Replace the compressor clutch relay.I
4. Measure the voltage between the No. 2 terminal of
the compressor clutch relay 4P socket and body
ground.
\
COMPfiESSON CLUTCH BELAY 'P SOCKET
ls there battery voltage?
YES Go to step 5.
NO Replace the under-hood fuse/relay box.I

Heating and Air Gonditioning
Blower Unit Removal and Installation {cont'd}
Remove the steering hanger beam bracket cover
from the right side of the glove box opening, then
remove the bolts and the olove box frame.
1.
8.
9.
Remove the ECM (see page 11-4).
Remove the EPS control unit (see page 17-67).
Disconnect and remove the PGM-Fl main relays
and bracket assembly, then remove the ECM
bracket.
Disconnect the connectors {A) from the blower
motor and the power transistor, then remove the
wire harness clips (B) and the connectors (C).
Remove the self-tapping screws and the bracket (D).
A
21-40
10. Disconnectthe connector {A) from the recirculation
control motor, then remove the wire harness clip
{B). Remove the mounting bolts, the mounting nuts
and the blower unit (C).
6x 1.0 mm I9.8 N.m (1.0 kgt.m,7.2 tbt.ftl
6x1.0mm9.8 N.m (1.0 kgf.m,?.2 tbf.ft)
11.
14.
Installlhe unit in the reverse order of removal.
Make sure that there is no air leakage.
Reconnect the negative battery terminal.
Do the engine control module (ECM) idle learn
procedure {see page 11-139).
Enter the anti-theft code for the radio, then enter
the customer's radio station presets.
\
'13.