MAIN WIRE HONDA CIVIC 1998 6.G Workshop Manual

Headlights (cont'd)
- How the Circuit Works
Low Beams
With the headlight switch in HEAD and the dimmer
switch in LO, current tlows through the headlight
switch. fuse 21 . fuse 22. and the low beam
tilaments to ground, and the low beams come on.
High Beams
With the headlight switch in HEAD and the dimmer
switch in Hl, current flows through the headlight
switch, dimmer switch, fuses 4, 5, and the high
beam filaments to ground, and the high beams
come on.
Current also llows through the high beam indicator
light to ground. The high beam indicator comes on
to remind the driver that the high beams are on.
Flash-to-Pass
The flash feature works with the headlight switch in
OFF, PARK, or HEAD (low beams). When you move
the flash-to-pass switch to ON, current flows
through the switch, fuses 4 and 5, and the high
beam filaments to ground, and the high beams
flash. The high beam indicator also flashes during
the flash operation. The flash function has no effect
if the high beams are already on
Daytime Running Lights (Canada)
When you turn the ignition to ON (ll) with the
parking brake released, the daytime running lights
control unit supplies battery voltage at the
WHT/RED wire. This voltage is applied to the high
beam headlights through the daytime running lights
resistor. Each high beam headlight receives less
than battery voltage causing them to come on at
reduced brightness.
lf the parking brake is set, a ground signal is applied
to the daytime running lights control unit at the
RED/GRN wire. lf the parking brake is set when you
first turn the ignition switch to ON (ll), the high beam
headlights will remain off until you release the
parking brake. Once the high beam headlights are
on, setting the parking brake will not turn them ofi.
When low or high beam operation is requested,
battery voltage from the headlight switch is applied
to the daytime running light control unit via the RED
wire. The daytime running lights control unit then
turns off the headlights.
Refer to the Service Manual (Section 23, Electrical)
for specific tests or lroubleshootrng procedures.
110-14

Power Door Locks (cont'd)
- How the Circuit Works
Keyless Entry System
The keyless door locks combine the power door
locks with a remote keyJob transmitter. The keyless
receiver unit is part of the radio. The keyless
receiver unit receives direct inputs f rom the ignition
key switch, the passenger door switches, and an
indirect input trom the driver's door switch through
the integrated control unit.
Power Door Locks (With or Wlthout Keyless)
The power door lock system is made up of the
oower door lock control unit. driver's door lock
switch, and individual door lock actuators. The
power door locks are controlled by the driver's door
lock switch and the driver's door lock actuator
switch.
Transmitter (With Keyless Entry)
The transmitter sends coded radio wave signals to
the keyless receiver unit when one ot its buttons is
pressed. Each transmitter has a unique code that
must be 'laught" to the keyless receiver unit before
it can operate the door locks or any other lunction.
Up to 4 transmitters can be programmed to operate
the keyless door locks.
Door Locking (With or without Keyless Entry)
When you push the driver's door lock switch to the
lock position, ground is applied to the GBN/IVHT
wire to the oower door lock control unit. The control
unit then applies battery voltage to the WHT/RED
wire and ground to the YEURED wire. The
passenger door lock actuators then activate to lock
the corresponding door locks.
When you lock the driver's door with the key or door
lock knob, it is mechanically locked, and the driver's
door lock actuator switch applies ground to the
oower door lock control unit. The control unit then
applies battery voltage to the WHT/RED wire and
ground to the YEURED wire, activating the
passenger door lock actuators which lock the doors.
Dool Locking with Transmitter
When you press the LOCK button on the remote
transmitter, the power door lock control unit applies
battery voltage to the WHT/RED wire and ground to
the YEURED wire. The passenger door lock
actuators then activate and lock the doors. A ground
slgnal is also applied to the BLU/RED wire to lock
the driver's door. lf any door is open, you cannot lock
it using the remote transmitter.
Door Unlocking (With or Without Keyless Entry)
When you push the driver's power door lock switch
to the unlock position, ground is applied to the
GRN/ORN wire to the power door lock control unit.
The control unit then applies battery voltage to the
YEURED and BLU/RED wires and ground to the
WHT/RED wire. The door lock actuators then
activate to unlock the doors.
When you unlock the driver's door with the key or
the door lock knob, it is mechanically unlocked; the
other doors do not unlock.
Door Unlocking (With Transmltter)
When you press the UNLOCK button on lhe remote
transmitter once. the power door lock control unit
applies battery voltage to the WHT/RED wire and
ground to the BLU/RED wire to unlock the driver's
door. When you press the UNLOCK button twice,
the control unit then applies ground to the YEURED
wires to activate the passenger door locks. lf you do
not open a door within 30 seconds after unlocking
the doors with the transmitter, the doors
automatically relock.
Transmltter Programming
1 . Turn the ignition switch ON (ll).
2. Press and hold the Valet-Disarm button on the
radio (between the AM/FM button and the
CD/TAPE button) to enter the programming
mode. (Continue to hold the button during the
procedure, or programming will be cancelled.)
Check that the power door locks cycle to confirm
that you're in the programming mode.
3. Press the "LOCK' or "UNLOCK' button on the
transmitter. Check that the power door locks
cycle to confirm that the code was accepted.
4. Press the "LOCK" or "UNLOCK" button on each
of the remaining transmitters. (You can program
up to four transmitters per vehicle.)
5. After all the transmitters have been
programmed, release lhe Valet-Disarm button to
exit the programming mode.
Beep On/Oft Feature
'I . Press and hold the LOCK and OPTION buttons
on the transmitter.
2. Watch the transmitter's LED:
One flash: Beeo activated.
Two tlashes: Beeo deactivated.
130-4

Power Door Locks (cont'd)
Keyless Receiver Unit Input Test
The following tests are pertormed with A (Main) and B (Keyless) disconnected from the audio unit.
TerminalNo.WireColorTest ConditlonTest: Desired RasultPossible Cause it resull is not obtained
4WHT/BLUUnder all conditionsCheck for vollage to ground:
There should bs batteryvoltage.
aBlown No. 47 (7.5A) tuse in the
under-hood fuss/relay box
An open in the wireo
5YEUREDlgnition switch ACC (l)Check lor voltage to ground:
Th€re should be battery
voltage.
aBlown No. 28 (10A) fuse in the
underdash fusg/relay box
An open in the wirea
TerminalNo.WireColorTest CondiiionTest: Desired ResultPossible Cause if rssult i3 not obtalned
BLU/RED
lgnition key insertedinto the ignition key
switch
Check for voltage to ground:
There should bs 1 V or less.aPoor ground (G401, G402)
Faulty ignition key switch
An open in the wire
Short in the wire
a
a
algnition key r€moved
trom the ignition key
switch
Check lor voltage to ground:
There should be 4 V or more.
3BLUI/ELUnder all conditions
Check for continuity betweenthe audio unit 16P connectorNo- 3 terminal and power doorlock control unit 12P connsctorNo. 6 terminal: There should
be continuity.
I An open in the wire
6BLK/YELlgnition switch ON (ll)Check for voltage to ground:
Thers should be batteryvollage.
. Blown No. 14 (7.5A) fuse in the
under-dash fuse/relay box
. An open in the wire
8LT GRN/BLKCeiljng light switch in"middle position"Connect to ground: The ceilinglight should come on.
aBlown No. 43 (7.5A) fuse in the
undsr-hood fuse/relay box
Blown ceiling light bulb
Faulty ceiling light
An open in the wire
a
a
o
14LT GRN/REDEach door oponed,one at a timeCheck for continuity to ground:
There should be continuity.
aFaulty door switch
An open in lhe wirea
tcBLKUnder all conditionsCheck for continuity to ground:
There should b€ continuity.
aPoor ground (G401, G402)
An open in the wirea
16GRYUnder all conditionsConn€ct to ground:
Horn should sound.
. Blown No.52 (15A) fuse in the
under-hood tuse/relay box
. Faulty horn
. Faulty horn relay
. An open in the wire
130-6

\
The following tests are performed with A (Main) reconnected to the audio unit.
B
\
TerminalNo.WireColorTest CondilionTest: Desired ResultPossible Cause it result is not obtained
9GRN/ORN
Driver's door lockswitch in UNLOCKCheck tor voltage to ground:There should be l V or less.
o Poor ground (G551)
. Faulty driver's door lock switch
. An open in the wire
. Short in the wire
Driver door lockswitch in LOCKCheck for voltage to ground:
There should be 4 V or more.
10GRN/vvHT
Driver's door lockswitch in UNLOCKCheck for voltage to ground:
There should be 4 V or more.
r Poor ground (G551)
. Faulty driver's door lock switch
o An open in the wire
o Short in the wire
Driver's door lockswitch in LOCKCheck for voltage to ground:
There should be 1 V or less.
\
130-7

Connector Views (cont'd)
1. C202 (with Cruise Control)
- Gray- Left side ol engine compartment- Connects main wire harness to engine
compartment wre harness
gRN/BLK
(Cruise control)
BRN,ryVHT(Cruise control)
RED/BLK(Headlight switch)
BRN {Cruise conkol)
WHT/BLK(Front wipetwashel)5
4.c568
- Gray- Below Juel tank unit connector- Connects floor wire harness to tuel tank
pressure suo-narness
BLU (PGi.4-Fr)
LT GRN (PGM-FI)
BLl(WHT (PGI\4-FD
YEUBLU (PGM,FI)
GRN/BLK (PGI\,4.FD
4
5
2. C407 ('98-'00 Models)
- Gray- Behind left side ol dash, above kick panel
- Connects main wire harness to roof or moonroo{
wtre harness
WHT/RED(Ceiling light)
l\4ale - LT GRN/REDFemale - LT GRN/BLKor LT GRN/RED(Ceiling light)
5
5.c570
- Blue- In right door pillar- Connects floor wire harness to right rear door
wlre hafness
2
3
YEL(Power windows)
WHT/RED(Power door locks)
YEUGRN(Power wrndows)
YEL/BLK(Power windows)
YEURED(Power door locks)
5
6
3.c423
- Green- On Jront of under-dash tuse/relay box- On main wire harness
*1: YEL (Fuse 3)*2: GRN(Rear wiper/washe4
GRN/YEL(Turn signals)
GRN/ORN {Tu.n signals)
GRN/BLK(Front wiper/washer)
GRN/RED(Turn signals)
5
62
3
*1= USA: tX, EX, HX, DX-V SiCanada: EX, Si*2= Hatchback
202-2
6.c571
- Blue- In lett door pillar- Connects floor wire harness to lett rear door
wlre harness
MaIe _ YELFemale - GBN/YEL(Power windows)
WHT/RED(Power door locks)
Male - YEUGRNFemale - GBN(Power windows)
5
6
N4ale YEUBLKFemale - RED,ryVHT(Power windows)
YEURED(Power door locks)

\7. C604 (Hatchback)
GRN/BLK(Back-up lights)
l\4ale GRNIYELFemale - GRN/RED(Turn signaland hazardwarning lights)
BLK (G601)
- Gray- Left rear ol cargo area- Connects rear wire harness to left outer
taillight assembly
4
5
6
1
2
GRNAVHT(Brake lights)
FED/BLK(Headllght switch)
10. Exhaust Gas Recirculation
(EGR) Valve and Lift Sensor
1
2
3
(D16Y5 MfI D1685)
- Gray- Top right side of engine- On engine wire harness
WHT/BLK (EGR input)
GRN/BLK(Sensor ground)
YEUBLU(Reference voltage)
4
5
6
BLK (Ground)
PNK (EGR control)
of cargo area
rear wire harness to right outer
assembly
n- -n
a t | _ a2a
l3I4t5tttl
IJ
I
8. C605 (Hatchback)
- Gray- Right rear- Connects
taillight
GRN/BLK(Back-up lights)
GRNTYEL(Turn signaland hazardwarning lights)
3
4
5
6
1
2
BLK (G601)
GFNAVHT (Brake lights)
RED/BLK(Headlight switch)
11. Heater Fan Switch
('96-'98 Models)
- Brown
Center of dash- On heater-sub B wire harness
BLK (Ground)
BLUAVHT (L4edium
LO speed input)
BLU/BLK(Hl speed input)
4
5
6
1
2
3
BLU (LO speed input)
BLU/YEL (Medium
Hlspeed input)
GFIN (Blowerswitch ON input)
9. C607 (Hatchback)
- Blue- Right side o{ cargo area- On rear wire harness
BLU/BLK (lndicators)
RED/BLK(License lights)
GBN,ryVHT (8rake lights)
LT GBN(Rear wiper/washe0
5
6
1
2
3
4
GRN(Rear wiper/washer)
LT GRN/BLK(Rear \/iper washer)
)/
202-3
12. Security Starter Cut Relay/C416
- Natural* Upper left kick panel- On main wire harness
1
2Allexcept CX and DXI[,4ale: BLK,^r'r'HTFemale: BLKI/ELCX and DXi BLI(WHT(Battery input)
All except CX and DX:BLK^/ELCX and DX: BLK/WHT(Baftery input)
[.4ale - BLK/WHTFemale - BLKAVHTor BLKRED(Starter output)
All excepi CX and DX:RED/YELCX and DX: GRN(Security starter c!1relay control inpul)
5
6
tl3'

Connector Views (cont'd)
13. Moonroof Close Relay
'96-97 Models:
1 WHT (Battery input)
2 GRN//EL
{Motor conirol)
3 GRN/ORN(lgnition lnput)
- Brown ('96-'97 models) or Gray ('98-'00 models)- Upper left kick panel- On moonroof wire harness
5
6
BLK (Ground)
GBN/RED (Coilconkol)
'98r00 Models:
GRN/YEL(Motor control)
WHT (Battery input)
GRN/RED(Coil control)
4 BLK (G401)
5 GRN/ORN(lgnition input)2
3
15. Moonroof Open Relay
- Brown ('96-'97 models) or Gray ('98-'00 models)- Upper left kick panel- On moonrool wire harness
'96.97 Models:
1 WHT (Battery input)
2 GRN/FED(lvlotor control)
3 GRN/ORN(lgnition input)
'98r00 Modelsi
BLK (Ground)
YEL (Coil conkol)
5
6
GBN/RED(lvlotor control)
WHT (Battery input)
YEL (Coil control)
4 BLK (G401)
5 GRN/ORN(lgnition input)2
3
,1^t
6
14. C415
- Brown- Above underdash fuse/relay box- Connects main wire harness to steering lock pigtail
* 1: [,4ale BLKryELFemale - BLKMHT*2: BLK,/WHT(Start oulput)
l\.4ale - BLU/REDFemale - BLUruVHT(lgnilion key switchoutpur)
N4ale - WHT/BLKFemale - WHT(Battery input)
l\,4ale BLKFemale - BLU^VHT(Ground)
Ani Male - WHTFemale - WHT /EL
(Key interlock switchourpur)
A/T:WHT/BLU(Key interlocksolenold control)
A"rT: WHT/GRN(Battery inpul)
*1= Vehicles pre-wired for accessory security system*2= Vehicles not pre wired for accessory security system
202-4
16. C422
- Green- On tront ol under-dash tuse/relay box- On main wire harness
7
l
2
3
4
5
6
7
FED/BLU (Headlights)
REDAVHT (Headlights)
WHT (Fuse 48)
BED/GRN(Headlight switch)

-17. Mode Control Motor
- Green- Behind dash, right of steering column- On heater sub-harness-A
1 BLK,TYEL (lgnition input)
2 YEUBLU (Detrost input)
3 YEL (H/DEF input)
4 BLUA/VHT (Heat input)
5 GRN/YEL (BI-LEV input)
YEURED (Vent input)'96.98: BLK (G402)'99-'00r BRNAVHT
{Motor ground input)
6
7
18. PGM-FI Main Relay
- Brown- Behind right side o{ dash- On main wire harness
'l
4
1 GRN/YEL(Fuel pump control)
2 BLUAVHT (Fuse 31)
3 BLK (G101)
*1: YEUGRN(Fuel pump output)*2: WHT/RED(Fuel supply control)
YEUGRN (Fuse 13)
YEUBLK (Power output)
WHT/BLK (Fuse 44)
6
7
*1= All except Dl685*2= D16Bs
19. Cl23 (D16Y5 M/T)
2
3
BLI(WHT
{Heater control)
BLK (Heater ground)
GRN/BLK(Sensor ground)
- cray- Right tront o{ engine- Connects engine wire harness to primary
HO2S pigtail
5
6
7
8
WHT (Hgater control)
WHT (Sensor input)
BLK (Sensor input)
RED (Sensor ground)
20. c136
- Gray- Left rear of engine compartment- Connects engine wire harness to main wire harness
'96198 D't6Y5:
1 Male - BLUAVHTFemale - BLU|/EL(A"/T controls)
2 GRN,^WHT (A,/T controls)
3 YEL (A/T controls)
4 GRN/YEL (A/T controls)
5 PN(BLK (fff gs6lrq;s;
6 PNI(BLU (A/T controls)
7 GRN/BLK (Ar/T controls)
8 RED/BLU (A/T controls)
9 WHT (A/T controls)
'96198 D16Y7/D16Y8:
GRN/BLK (A/T controls)
WHT/RED(lnterlock system)
10 WHT/RED (A"/T controls)
11 '98 models: GRN/BLK(PGr,4-Fr)
12 GRN (A/T controls)
13 l\4ale - REDMHTFemale - RED/BLU(4,/T controls)
14 N4ale - BLIVWHTFemale - ORN/BLU(A/T controls)
5 WHT (A/T controls)
6 BLU (Antf se11re;s;
7
A

01685:
3
1
2
3
4
5
6
7
8
BRN (PGM-FD
RED (PGIV-FD
BLU (PGI\4-FD
YEL (PGI,4,F|)
l\4ale - GFNFemale - WHT/RED(PGM-FD
GRN/BLK (A'tl gs6trels;
BLU (A/T controls)
wHT (A/I controls)
202-5

21. C214
- Gray- Right side of engine compartment- Connects engine wire harness to main wire harness
'96- 97 models:Male - WHT/GRNFemale - BLU/FED(Horn)'98-'00 models:BLU/RED (Horn)
BLKRED (Fans)
WHT (Fans)
4
5
6
7
*io t0,,"compressor controls)
BLU/RED (A,/C
compressor controls)
BLU,ryVHT (I'/C
compressor controls)
2
3
23. C639
- Black,ryVhite- Top front ot driver's door- Connects driver's door wire harness to driver's
power mirror pigtail
Without Defogger:
1
2
4
6 Male - LT GRNFema|e - BLU/BLK(Left/right control)
With Oelogger:
1
2
3 l\,lale - BLKAVHTFemale - BLK(Ground)
4 lvlale - BLU/REDFemale ORNAVHT(Delogge4
lvlale PNKFemale - YEURED(Common)
MaIe _ GRYFemale BLUA/VHT(Up/down control)
lvlale - LT GRNFemale BLU/BLK(Corrmon)
i.4ale - PNKFemale - YEURED(Up/down conkol)
Male - GRYFemale - BLU,ryVHT(Lett/right control)
22. C552
- Green- On rear of under-dash fuse/relay box- On tloor wire harness
1 *1: FEDA/VHT(Power windows)
2 *1: YEL/BLK(Power windows)
3 *1:YEL/BLK
(Power windows)
4 *1 | RED/WHT(Power windows)
*1= Sedan only*2='96''98:All'99-'00r GX
6
7
GRN/BLK(Power windows)
GRN/BLK(Power windows)*2: BLK/YEL(Power mifiors)
BLU/BLK
{Power windows)
202-6
24. C556
- Black,ryVhite- Top front of front passenger's door- Connects tront passengefs door wire harness
to passenger's power mirror pigtail
Without Defogger:
l
2
3 l\4ale -
Female BLK(Not Used)
4 l\4ale -
Female - ORN/WHT(Not Used)
With Delogger:
1
2
3 Male - BLK^VHTFemale - BLK(Ground)
4 l\.4ale - BLU/REDFemale - ORNAVHT(Defogger)
Male OBNFemale - YEUBLK(LefVright control)
l\4ale - PNKFemale - YEL/RED(Common)
Male BRNFemale - GRNA/VHT(Up/down conkol)
[.4ale - ORNFemale - YEL/BLK(Left/right control)
lrale - PNKFemale - YEURED(Up/down conkol)
l\,lale - BFNFemale'GFiN(Common)

-25. CW Transmission Solenoid
- Gray- Lower front of transmission- On engine wire harness
1
2 GRNAVHT (H LC LS +)
3 BLUAVHT (SH LS +)
4 YEL (SC LS +)
5
6
7
8
GRN/BLK (SOL IN H)
PNK/BLK (HLC LS _)
GRN|VEL (SH LS -)
PNK/BLU (SC LS _)
26. Interlock Control Unit
- Gray- Behind left side oJ dash, right of steering column- On main wire harness
1
7
2
3
4
WHT/BLU (Key interlocksolenoid control)
YEL (lgnition input)
YEUBLK (Shift locksolenoid control)
BLK (G401)
WHT (Key
interlock switch input)
BLKBLU (Park lnput)
WHT/RED (Shinlock circuit control)
WHI/BLK(Park pln switch input)
6
7
27. C352
- Gray- On bottom of under-hood {use/relay box- On main wire harness
1
789
I
1
2
3
4
GRN (Fans)
BLUAVHT (fuC
compressor controlS)
WHT/BLK(Hazard warning lights)
WHT/BLK (Fuse 42)
BLKRED (A/Ccompressor clutchrelay control)
BLK,/YEL (Fuse 17)
WHT/GRN (Fuse 52)
WHT (Fuse 48)
6
7
8
I
28. C101
- Gtay- Left rear of engine compartment- Connecls engine wire harness to main wire harness
1 l\,4ale - BLK/YELFemale - BLK,ryVHT(Fuse 15)
2 BLK (G101)
3 YEURED (Oilpressure indicator light)
4 *1/*4: BRN/BLK (G101)
5 YEUBLK (PGI\4,FD
6 WHT/BLU(Charging system)
7 YEL/GRN (Gauges)
I *1: BLU (lgnition
sYstem)
9 Male - BLK VHTFemale - BLKRED(Slarting system)
10 *2: BLKryEL(lgnition system)*3: Male - BLK/YELFemale - RED(lgnition system)
*1= 96-'98 models: All'99: D16Y5 with M,iT*2= '96-'97 models: All'98-'99 modelsr GX*3= '96-'98 models: All except GX*4=: '98''00 Models: GX
202-7