1999 HONDA CIVIC ect

A/G GomPressor Belt
Adjustment
Detlection Method
'1. Apply a force of 98 N (10 kgf, 22 lbf), and measure
the deflection between the A,/C compressor and the
crankshaft PulleY
A/C ComPressor Belt
Used Belt: 816A2 engine
6.0 - 9.5 mm 10 2'l - 0.37 inl
Except 816A2 engine
7.5 - 9.5 mm (0.30 - 0.37 in)
New Belt: 816A2 engine
4.5- 6 5 mm (0.18-0.26 in)
Except 815A2 engine
5.0-5 5 mm (0.20-0.26 inl
Note these items when adjusting belt tens'on:
. lf there are cracks or any damage evident on the
belt, replace it with a new one.
. "Used belt" means a belt which has been used
for five minutes or more.
. "New belt" means a belt which has been used
tor less than five minutes.
2. Loosen, the center nut ofthe idler pulley (SANDEN), or
the pivot bolt of the idler pulley bracket and the lock
nut ofthe adjusting bolt (DENSO).
3. Turn the adjusting bolt to get proper belt tension'
4. Retighten the center nut of the idler pulley (SANDEN),
or the pivot bolt of the idler pulley bracket and the lock
nut of the adjusting bolt (DENSO).
5. Recheck the deflection of the A,/C compressor belt'
Tension Gauge Method
1. Attach the special tool to the IVC compressor belt as
shown below, and measure the tension of the belt
A/C Compressor Belt
Used Belt: 816A2 engine
390 - 540 N (40 - 55 kgf, 88 - 120 lbll
Except 816A2 engine
340 - 490 N (35 - 50 ksf, 77 - 110 lbfl
New Belt: B16A2 engine
?40 - 880 N {75 - 90 ksf' 170 - 200 lbf)
Except Bl642 engine
690 - 830 N (70 - 85 ksf, 150 - 190 lbf)
Note these items when adjusting belt tension:
. Follow the manufacturer's instructions for the
belt tension gauge.
. lf there are cracks or any damage evident on the
belt, rePlace it with a new one.
. "Used belt" means a belt which has been used
for five minutes or more.
. "New belt" means a belt which has been used
for less than five minutes
2 Loosen the center nut of the idler pulley (SANDEN)' or
the pivot bolt of the idler pulley bracket and the lock
nut of the adjusting bolt (DENSO).
3. Turn the adjusting bolt to get proper belt tension
4. Retighten the center nut of the idler pulley (SANDEN),
or the pivot bolt of the idler pulley bracket and the lock
nut of the adjusting bolt (DENSO)
5. Recheck the tension of the A/C compressor belt'
22-43

Condenser
Replacement
1.Recover the refrigerant with a recovery/recycling/
charging station lsee page 22-271.
Disconnect the condenser fan connector from theAy'C wire harness, then remove the A,/C wire harnessfrom the condenser fan shroud.
Remove the bolts, then disconnect the dischargeand condenser lines from the condenser.
NOTE: Plug or cap the lines immediately after dis-connecting them to avoid moisture and dust con-tamination,
6r1.0
6x1.0mmolscHARGE L|NE 9.8 N.m 11.0
9.8 N.m 11.0 kgl.m, 7.2 lbf.ftl
22-44
4. Remove the bolt from the suction hose bracket, andremove the two bolts and the upper mount bracket.Remove the condenser assembly by lifting it up.
NOTE: Be careful not to damage the condenser finswhen removing the condenser assembly.
UPPER MOUNT BRACKET
5. Install in the reverse order of removal. Make note ofthe following items.
. lf you're installing a new condenser, add refriger-ant oil (SANDEN, SP-10 or DENSO, ND-O|L 8)
\see page 22-22l.-
. Replace the O-rings with new ones at each fit-ting, and apply a thin coat of refrigerant oilbefo.e installing them.
NOTE; Be sure to use the right O-rings for HFC,134a (R-134a) to avoid leakage.o Be careful not to damage the condenser finswhen installing the condenser assembly.. Charge the system (see page 22-46), and test itsperformance (see page 22-24i.
6x1.0mm9,8 N.m 11.0 kg{.m, 7.2lbtft}
6x1.0mm9.8 N.m 11.0 kst m, 7.2 lbf.ftl

A/C System Service
Evacuation
Use only service equipment that is U L.-listed and is cer-
tified to meet the requirements oJ SAE J2210 to remove
HFC-134a (R-134a) from the air conditioner system'
CAUTION: Exposure to air conditioner reftig€lant and
lubricant vapor or misi can irrhaie eyes. noso and throat'
Avoid breathing the ail condhioner lefrigelant and lubri
cant vapor or mist.
lf accidental system discharge occurs, ventilate work
area before resuming servace.
R-134a service equipment or vehicle air conditioner sys-
tems should not be pressure tested or leak tested with
comDressed air.
!!@@ some mixtures of air and R-13'[8 haYo boon
ffiiE-n to be "ombustible at elovatod pressurcs and can
result in fire or explosion causing iniury or propsrtY
damag€. Never uso complsssod air to pre3surs tost R-
1344 ssrvico equipment or vehicle air conditioner sy3-
tems,
Additional health and safety information may be obtained
from the refrigerant and lubricant manuJacturers'
When an A,/C System has been opened to the atmo-
sphere, such as during installation or repair, it must
be evacuated using a R-134a refrigerant recovery/
recycling/charging station. (lf the system has been
open for several days, the receiver/dryer should be
replaced, and the system should be evacuated for
several hours.)
Connect a R-134a refrigerant recovery/
recycling/charging station to the vehicle, as shown'
following the equipment manufacturer's instruc-
trons.
NOTE: lf low pressure does not reach more than 93 3
kPa (7OO mmHg,27.6 in.Hgl in 15 minutes, there is
probably a leak in the system Partially charge the
system, and check for leaks (see Leak Test)
1.
R6covory/Recyclin g/Chal9ing Station
22-45'

A/C System Service
Charging
Use only service equipment that is U.L.-listed and is cer-
tified to meet the requirements of SAE J2210 to remove
HFC-134a (R-134a) from the air conditioner system.
CAUTION: Exposure to air conditioner refrigerant and
lubricant vapor or mist can irritale eyes, nose and
throat. Avoid breathing the air conditioner retrigerant
and lubricant vaoor or mist,
lf accidental system discharge occurs, ventilate workarea before resuming service, Additional health and
safety information may be obtained from the refrigerant
and lubricant manufacturers.
Refrigerant capacityt 600 - 650 g 121.1 - 22.9 ozl
CAUnON: Do not overcharg€ the system; the comprcssor
will be damaged.
Connect a R-134a refrigerant recovery/recycling/charging
station to the vehicle, as shown, following the equipment
manufacturer's instructions.
Recovery/Recycling/Charging Station
22-46
Leak Test
Use only service equipment that is U.L,-listed and is cer-
tified to meet the requirements of SAE J2210 to remove
HFC-134a (R-134a) from the air conditioner system.
CAUTION: Exposure io air conditioner refrigerant and
lubricant vapot or mist can itritats eyes, no36 and thtoat.
Avoid breathing the air conditioner refrigeranl and lubri-
cant vapor or mist,
lf accidental system discharge occurs, ventilate workarea betore resuming service.
R-134a service equipment or vehicle air conditioner sys-
tems should not be pressure tested or leak tested with
comoressed air.
@ some mixtures of air and R-134a have
been shown to be combugtibls at elevatgd prossures
and can result in tire or explosion causing iniuly orplopgrty damage. Nev€r usc compre33od air to pressure
test R-13'la servica oquipment or yohiclo air conditionor
systems.
Additional health and safety information may be obtained
from the refrigerant and lubricant manufacturers.
1. Connect a R-134a refrigerant recove rylrecycling/
charging station to the vehicle, as shown in the pre-
vious column, following the equipment manufactur-
er's instructions.
NOTE; Be sure to install the same amount of new
refrigerant oil back into the A,/C system before charg-In9.
Open the high-pressure valve to charge the system
to the specified capacity, then close the supply
valve, and remove the charging system couplers.
Rofrigerant capacity: 600 - 650 g (21.1 - 22.9 oz)
Check the system for leaks using a R-134a refriger-
ant leak detector with an accuracy of 14 9 10.5 ozlper yea. or better.
lf you find leaks that require the system to be opened(to repair or replace hoses. fittings. etc.), recover the
system according to the Recovery Procedure on page
22-27.
After checking and repairing leaks. the system must
be evacuated (see System Evacuation on page 22-451.

l'f .
Electrical
Special Toofs .,....................,23-2
Troubleshooting
Tips and Precautions ..............,.................... . 23-3
Five-step Troubleshooting .............. ......... . . 23-5
wire color codes ..........,23-5
Schematic Symbols ........,................... . . .. .... 23-6
Relay and Control Unit Locations
Engine Compartment ...,..................... ... .. . 23'7
Dashboard ......................23-8
Dashboard/Door ......... 23-12*Airbags ................. ....... Section 24
Air Conditioning ......... Section 21
Aftelnator ..........."""" """ 23-112
Anti-lock Brake System {ABS) Section 19*A/T Gear Position Indicator .....................,. .... ... 23-149
Automatic Transmission Svstem .... . ....... Section 14
Batterv ......... . . . ... ...... .......23-91
Blower controls .. . ... Section 2l
Charging System ....'...........23'112
Connector ldentilication and Wire Harness
Routing .................. ......23'13
Cruise Control ............,........23-240
Dash Lights Brightness Controller ............. ....... 23-180
Fan controfs "" 23'126
Fuel PumD ........ . ........ section 11
Fuses/Refay ...............,..,,.. 23'62
PGM-FI Control System ......................,....... Section 1 1
*Gauges
Circuit Diagram ....,.,.......23-131
Fuef Gauge ...........'.'.......23-142
Gauge/lndicator .. . .. 23-129
Ground Distribution .. . 23-75
Heatei controls .. . ..... Section 21*Horn................. ...............23-196
*tgnition Switch ....................23-89
lgnition System .......,.... 23-102
*lntegrated Control Unit ....................................... 23-156
fnterlock System ,........ . . , ,23-144
Lighting System . . . .. ......... 23-161
Lights, Exterior
Back-up Lights ..'............23'171
Brake Lights .................. 23'174
Daytime Bunning Lights (Canadal ............... 23'166
Front Parking Lights ......,................ .'. .......... 23-167
Front Turn Signal Lights .......... . . ............ ..,.23-167
Headtights ....".'....-... ..... 23'167
High Mount Brake Light ...................... ... .23'179
License Plate Lights ...... 23'176
Taitfights ................ .......23'171
lnterior Lights ..-.......,, . 23-142
Moonroof ..,.................,........ 23-235
Power Distribution ....... . . .23-61
Power Door Locks .......,,,. .23'251
Power Mirrors ,..............,.,...23'206
Power Relays ....... . ...... . . .. 23-86
Power Windows ............,,....23-220
Rear Window Defogger .......................... . . ... . . 23-2OO
Spark Plugs . ..... . ........ .....23-111
Slarting System ................23-93*stereo Sound Svstem ,................. ..... ... . ... ,.,.,,23'147'Supplemental Restraint System (SRS) ... . Section 24
Turn Signal/Hazard Flasher System .......'.'....-... 23-173
*Undel-dash Fuse/Relay Box ............,.................. 23-85
vehicfe soeed sensor (VSSI """" ""' 23-140+Wipers/Washers .........,.,.,...23-214
NOTE: Unless otherwise specified, references to auto-
matic transmission (Mf) in this section include the CVT.

Special Tools
Ref. No. Tool NumberDescriptionOty Page Reference
O)
@-
o
@
o
tol
A973X_041 _XXXXX
07JGG 00l0l0A
OTLAJ - PT3O2OA
07NAC - SR20100
07PM - 0010r 00
07MAJ - SP00300
Vacuum Pump Gauge, 0 - 30 in.Hg.
Belt Tension Gauge
Test Harness
Fuel Sender Wrench
SCS Service Connector
Keyless Entry Checker
1
1'I
1
1
1
23-245
23-140,141
23-142
23-105
23-264
': Included in Belt Tension Gauge Set 07T66 - 0010004
or/4,
(!
23-2

Troubleshooting
ll.
Tips and Precautions
Bef ore Troubleshooting
. Check applicable fuses in the appropriate fuse/relay
box.
. Check the battery for damage, state of charge, and
clean and tight connections.
. Check the alternator belt tension.
CAUTION:
. Do not quick-charge a battery unless the battery
ground cable has been disconneqted, otherwise you
will damage the alternator diodes.
. Do not attempt to crank the engine with the battery
ground cable loosely connecled or you will severely
damage the wiling,
Handling Connectois
. Make sure the connectors are clean and have no loose
wire terminals.
. Make sure multiple cavity connectors are packed with
grease (except watertight connectors)
. All connectors have push-down release type locks.
Some connectors have a clip on their side used to
attach them to a mount bracket on the body or on
another component. This clip has a pulltype lock.
Some mounted connectors cannot be disconnected
unless you first release the lock and remove the con-
nector from its mount bracket.
LOCKINGPAWL ONOTHERHALF OFCONNECTOR
Pull todrsengage
LOCKING TAB
BRACKET
Never try to disconnect connectors by pulling on
their wires; pull on the connector halves instead
Alwavs reinstall plastic covers.
Before connectang connectors,
nals are in place and not bent.
make sure the terml-
. Check for loose retainer and rubber seals.
RETAINER
The backs of some connectors are packed with
grease. Add grease if necessary. lf the grease is con-
taminated, replace it.
(cont'd)
23-3

Troubleshooting
Tips and Precautions (cont'dl
Insert the connector all the way and make sure it is
securelv locked.
Position wires so that the open end of the cover faces
down.
After installing harness clips, make sure the harness
doesn't interfere with any moving pans.
Keep wire harnesses away from exhaust pipes and
other hot parts. from sharp edges of brackets and
holes, and from exDosed screws and bolts.
V
F6c6op€n end
Handling Wires and Harnosscs
. Secure wires and wire harnesses to the frame with
their respective wire ties at the designated locations,
. Remove clips carefully; don't damage their locks.
Slip pliers under the clip base and through the hole at
an angle, then squeeze the expansion tabs to release the
clrp.
SNAP-BING PLIERS
23-4
NOT GOOO
ll il,/
s*' -.1}8."/_Y--_Y5\
il ,,
Testing and Repairs
o Do not use wires or harnesses with broken insulation.
Replace them or repair them by wrspping the break
with electricaltaoe.
. After installing parts, make sure that no wires arepinched under them.. When using electrical test equipment, follow the
manufacturer's instructions and those described in
this manual.
. lf possible, insert the probe of the tester from the
wire side (except waterproof connector).
. Seat grommets in their grooves properly.
. Use a probe with a tapered tip.
Refer to the instructions in the Honda Terminal Kit for
identification and replacement of connector termi-
nats.