1997 HONDA CIVIC Ground

Ftom page 22 18
Check tor an open in the wire:1. Turn the ignition switch OFF,then disconnect the iu mper
2. Remove the center dashboardlower cover lsee section 20),
and disconnect the heater con'
trol panel 14P connector.
3. Turn the ignition switch ON (ll).
4. Measure the voltage betweenthe No. 11 terminal and bodyground.
Repair op6n in the wire bstween
the A/C th€rmostat and th6 hoater
control panel.
Check lor an open in the wire:
1. Turn the ignition switch OFF.2. Disconnect the heater Ian
switch 6P connector,3. Check for continuity between
the No. 14 terminal of theheater control panel 14P con_nector and the No.6 terminalof the heater fan switch 6P con-nector.
Repair open in the wiro betweGnthe heal.r control Panel and theheater fan switch.
Check for an open in thG wire:Check for continuity between theNo. 1 terminal of the heater lanswatch 6P connector and bodYground.
Chock tor an open in tho wir€
between the heater lan switch
and body ground. lf the wire is OK,check for poor ground at G401 sndG402.
ls there continu;ty?
ReDlace the heater tan switch.ls the heater fan switch OK?
Check for loose wiaes or poor
connections at the heater controloanel 14P connoctor and hoetertan 3witch 5P conn€clor and atthe A/C thermostet 3P connec-tor. ll the connections are good,
raplace the heator control Panel.
r'oA - qe m^.lalal
HEATER CONTROL PANEL lilP CONNECTOR
tra6
7II'o lx't1121314
BLU/RED
Wire side of female terminals
HEATER CONTROL PANEL 1'P CONNECTOR
Wire side of female terrninals
HEATER FAN SW]TCH 6P CONNECTOR
Wire side of female terminals
(cont'd)
12;--?45
7I10X'll121314
GRN
123
a56GRN
22-19

Troubleshooting
('99 00 models)
From page 22 18
Check lor an open in the wire:1. Turn the ignition switch OFF,then disconnect the ju mper
2. Disconnect the heater controlpanel 20P connector.3. Turn the ;gnition switch ON{

i.4. Measure the voltage betweenthe No. 11 terminal of theheater control panel 20P con-nector and body ground.
Ropai. opan in tho wira batwaonthe A/C thermostat and thehoater control oanol.ls there battery voltage?
Check the push switch:1. Turn the ignition switch OFF.2. Disconnect the push switch12P connector.3. Check for continuity betweenthe No. I and No. 10 terminalsof the push switch 12P con-nector with the A/C switch ON.
Check for loose wi.es or poor
connections el the hgater controlpanel 20P connector and pushswitch 12P connector and at theA/C thermostat 3P connector. Ittha connections are good, substi-tute a known-good heatea con-trol pan€|, and recheck. lf thesymptom/indication goe3 away,replace lhe original healer con-trol oan€|,
HEATER CONTROL PANEL anP CONNECTOR
Wire side of temale terminals
PUSH SW]TCH 12P CONNECTOR
Wire side of female terminals
,/1,/156
7819t01112
I
I
I

A/C ThermostatRelays
Test
1.Remove the Ay'C thermostat (see page 22-29).
Connect baftery power to the No. 3 terminal, ground
the No. 2 terminal, and connect a test light between
the No. 1 and No. 3 terminals.
NOTEr Use a 12 V,3 W- l8 W test light.
Dip the IVC thermostat into a cup filled with ice water,
and check the test light.
Serp6ntine-type evaporator
The light should go off at 36 - 39'F {2 - 4"C} or less, and
should come on at 39 - 41"F (4 - 5"C) or more
Laminale-type evaporator
The light should go off at 39 - 43'F (4 - 6'C) or less, and
should come on at 43 - 45"F (6 - 7'C) or more
lf the light doesn't come on and go off as specified,
replace the PVC thermostat.
12V,3W-18W
Test
There should be continuity between the No, 1 and No.2
terminals when power and ground are connected to the
No.3 and No. 4 terminals, and there should be no conti-
nuitv when Dower is disconnected.
2
Condenser fan relay
Compressor clutch relay
a
a
,I Ib
In Io'r I
t\----,'
t:n
,,l[4..-.
22-21

5. Remove the screw from the field coil ground termi-
nal, then disconnect the field coil connector.
Remove snap ring A with snap ring pliers, then
remove the field coil
NOTE:
. Be careful not to damage the field coil and com-
pressor during remove/installation.
. Once snap ring A is removed, replace it with a
new one.
. When installing the field coil, align the boss on
the field coil with the hole in the compressor.
SNAP RING AReplace.
Position the rotor pulley squarely over the field coil.
Press the rotor pulley onto the compressor boss
with the special tool. lf the rotor pulley does not
press on straight, remove it, and check the rotor
pulley and compressor boss for burrs or damage.
CAUTION: Maximum press load: 39,200 kPa
(,[00 kgf/cm', 5,590 Psi)
Press
THUB ASSEMBLYGUIDE ATTACHMENT07965 - 6920500
ROTORPULLEY
t'l
i,'
7. Assemble in the reverse order of disassembly
Make note of the following items.
. lnstall the field coil with the wire side facing down.
. Clean the rotor pulley and compressor sliding
surfaces with non-petroleum solvent.
. Make sure the snap rings are fully seated in the
groove.
. Make sure that the rotor pulley turns smoothly
after it's reassembled
. Route and clamp the wires properly or they can
be damaged bY the rotor Pulley.
22-35

Compressor (SANDENI
Thermal Protestor Replacement
1. Remove the bolt, the ground terminal and the hold-er. Disconnect the field coil connector. then removethe thermal Drotector.
7.{ N.m 10.75 ksf.m,5lbtfr)
/
SILICONE SEALANT
3. Install in the reverse order of removal.
GROUNDIERMINAL
HOI.I'ER
PNOTECTOR
Replace the thermal protector with a new one. andapply silicone sealant to the top of the thermal pro-
tector.
22-36
oo
Relief Valve Replacement
'1.Remove the relief valve and the O-ring.
NOTE:
. Do not let the compressor oil runout.. Make sure that no foreign matter enters the sys-tem,
RELIEFVALVE9.8 N.m {1.0 kgl.m,7.2 tbl.lrl
O.RINGReplace.
Clean the mating surfaces.
Replace the O-ring with a new one at the relief valve.and apply a thin coat of refrigerant oil beforeinstalling it.
NOTE:
. To avoid contamination. do not return the oil tothe container once dispensed, and never mix it
with other refrigerant oils.o lmmediately after using the oil, replace the capon the container, and seal it to avoid moistureabsorption.
. Do not spill the refrigerant oil on the vehicle; itmay damage the paint; if the refrigerant oil con-tacts the paint, wash it off immediately.
Install and tighten the relief valve.
Charge the system {see page 22-461, and test itsperformance 1se6 page 22-241.

Compressor (DENSO)
Clutch Overhaul (cont'd)
Remove the screw from the field coil ground termi-nal. Remove the snap ring A with snap ring pliers.
then remove the field coil. Be careful not to damaoethe field coil and compressor.
SNAP NING AReplace.
Reassemble the compressor clutch in the reverseorder of disassembly, and note these rrems:
o Install the field coil with the wire side facingdown.
a Clean the pulley and compressor sliding surfaceswith non-petroleum solvent.. Install new snap rings, and make sure thev arefully seated in the groove.
. Make sure that the pulley turns smoothly afterit's reassembled.
. Route and clamp the wires p.operly or they canbe damaged by pulley.
FIELOcorL
22-42
13.2 N.m 11.35 kgt m,9.76lbtttl
Relief Valve Replacement
L
4.
Recover the refrigerant with a recovery/recycling/charging station {see page 22-27),
Remove the relief valve and the O-ring. plug theopening to keep foreign matter from entering thesystem and the compressor oilfrom running out.
Clean the mating surfaces.
Replace the O-ring with a new one at the relief valve.and apply a thin coat of refrigerant oil before install-ing it.
Remove the plug, and install and tighten the reliefvatve.
Charge the system (see page 22-46), and test its per-formance (see page 22-24),

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.

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