no. 25 HONDA CIVIC 1999 6.G Workshop Manual

CavityWireTest conditionTest: Desired resultPossible caus! d r"suh rs nol obtrincd
to:
c1
BLK
UnderallconditionsCheck for continuity to groundl
There should be continuity., An ope^ ^ :he tt .e
. Blown No.7.6 10 r' " 20 A
fuse in the unde. oast f.se 'e a,
box. Faulty power windo$ 'e a,. An open in the wire
B3BLU/BLKlgnition switch ON (ll)Check for voltage to grou nd:
There should be battery voltage.
B2GRN/BLK
YE L/BLK
R EDA/VHT815
81RED/BLU
RED/YEL
Connect the BLU/BLK
terminal to the RED/YEL
terminal, and the RED/
BLU terminal to the
BLK terminal, then turn
the ignition switch ON
1I i.
Check the driver's window motorl
It should run (the window moves
oown).
. Faulty driver's window motor
. An open in the wire
B1BLUIVEL
Connect the GRN/BLK
terminal to the BLU|YEL
terminal, and the BLU/
Check the front passenger's
wrnoow motor:
It should run (the window moves
Fau lty front passenger's window
motor
Faulty front passenger's window
An open in the wire
811BLU/ORNBLK terminal, then turn
the ignition switch ON
0 r).
B9YEL
connect the YEL/BLK
terminal to the YEL ter-
minal, and the YEU
GRN terminal to the
BLK terminal, then turn
the ignition switch ON
0 r).
Check the right rear motor:
It should run (the window moves
down).
Fauity right rear window motor
Fau lty right window switch
An open in the wire
Bt0YEUGRN
814GRNI/EL
connect the RED,ryVHT
terminal to the GRN/
YEL terminal, and the
GRN terminal to the
BLK terminal, then turn
the ignition switch ON
0 r).
Check the left rear motor:
It should run (the window moves
Faulty left rear window motor
Faulty left rear window switch
An open in the wire
816GRN
B6BLU
Connect the BLU/BLK
terminal to the RED/
YEL terminal, and the
BLK terminal to the
RED/BLU terminal,
then turn the ignition
switch ON (ll).
Check for voltage between the
BLU and BLK terminalsl
Approx. 6 V should be indicated as
the driver's window motor runs.
Faulty pulser
Faulty driver's window motor
An open in the wire
B4BLK
23-231

Driver's Window Motor Test
Motor Test:
l. Remove the driver's door panel (see section 20).
Terminal side of male terminals
Disconnect the 4P connector from the motor.
Test the motor in each direction by connecting bat-
tery power and ground according to the table.
CAUTION: When th€ molor stops running, discon-
n€ct one lead immediat€ly.
4. lf the motor does not run or fails to run smoothlv.
reDlace it.
3.
l.,,
Terminal
;."t1."
-_l\1
UPo@
DOWNoo
Puls€r Test:
5. Connect the test leads of an analog ohmmeter to the
No. 3 and No. 4 terminals.
6. Run the motor by connecting power and ground to
the No. 1 and No.2 terminals. The ohmmeter needle
should move back and forth alternately.
23-233

Funstion Test
CAUTION: Bo careful not to damago the moonroof switch
or ths driv6r's dashboard lowsr cover when prying the
3witch out.
NOTE: Check the No. 51 (20 Al fuse in the under-hood
tuse/relay box and No.24 (7.5 A) fuse in the under-dash
fuse/relay box, before testing.
1. Prv the switch out of the driver's dashboard lower
cover.
swtTcH
Wire side of female terminals
2. Disconnect the 4P connector from the switch
4P CONNECTOR
l-t
23-237
Connect the No. 1 (YELI terminal to body ground
with a jumper wire, then turn the ignition switch ON
(ll). The moonroof should open.
. lf the moonroot opens, check the switch.
. lf the moonroot does not open, check for:
- an open in the YEL wire.
- faulty moonroof open relay.
- faulty moonroof close relay,
- poor ground (G401, G402).- fa u lty open/close switch.
Connect the No. 3 (YELnED) terminal to body ground
with a jumper wire. then turn the ignition switch ON
(ll). The moonroof should close.
. lf the moonroof closes. check the switch.
. lf the moonrool does not close, check for:
- an open in the YEURED or GRN/RED wire'
- faulty moonroof close relaY.
- faulty moonroot oPen relaY.
- faulty tilvclose switch.
Connect the No. 2 (BLU) terminal to body ground with
a jumper wire, then turn the ignition switch oN (ll).
The moonroof should tilt up.
. lf the moonroof tilts up, checkthe switch.
. lf the moonroof does nottilt up, checkfor:
- an open in the BLU wire.
- taulty tilvclose switch
Connect the No. 3 (YEURED) terminal to bodY ground
with a jumper wire, then turn the ignition switch ON
(ll), The moonroof should tilt down.
lf the moonroof does not tilt down, the open/close
relay must be taulty.
Check for continuity to body ground on the No. 4
{BLK}terminal.
There should be continuity.
. lf there is continuity, check the switch
. lf there is no continuity, check for:
- an open in the BLK wire
- poor ground (G401, G402).
6.
7.

)
CavityWireTest conditionTest: Desired resultPossible cause if result is not obtained
BRNA/VHTUnder all conditionsCheck for resistance to ground:
There should be 80 - 120 O.
Fau lty actuator solenoid
Poor ground (G202)
An open in the wire
1BRNUnder all conditionsCheck for resistance to ground:
There should be 40 - 60 0.
11BRN/BLKUnder all conditionsCheck for resistance to ground:
There should be 70 - 110 0.
2GRY
lgn jtion switch ON (ll),
main switch ON and
brake pedal pushed,
then released
Check for voltage to ground:
There should be 0 V with the Pedal
pushed and battery voltage with
the pedal released.
'Faulty brake switch
. An open In the wlre
3BLKU nderall conditionsCheck for continuitY to groundl
There should be continuity
' Poor ground (G401, G402)
. An open in the wire
5GRNA,A/HT
Brake pedal pushed,
then released
Check for voltage to groundl
There should be batterY voltage
with the Pedal Pushed. and 0 V
with the pedal released
. Blown No. 52 (15 A) fuse in the
under-hood fuse/relaY box
. Faulty brake switch. An open in the wire
LT GRN/
RED
Set button pushedCheck for voltage to ground:
There should be batterY voltage.
Blown No. 52 (15 A) fuse in the
under-hood fuse/relaY box
Faulty horn relay
Faulty sevresume switch
Faulty cable reel
An open in the wire7LT GRN/
BLK
Resume button Pushed
10RED/BLU
lgnition switch ON (ll)Attach to ground:
Cruise indicator light in the gauge
assembly should come on.
Blown bulb
Blown No. 25 (7.5 A) fuse in the
under dash fuse/relay box
Faulty dimming circuit in the
gauge assemDly
An open in the wire
BLU,A/VHT
lgnition switch ON (ll)
and main swilch ON;
raise the front of the
car, and rotate one
wheel slowly with the
other wheel blocked.
Check for voltage between the
BLUMHT @ and BLK O terminals:
There should be 0- 5 V or more
-0- 5 V or more repeatedlY
. Faulty vehicle speed sensor {VSS)
. An open in the wire
LT GRN
lgnition switch ON (ll)
and main switch ON
Check for voltage to ground:
There should be batterY voltage.
Blown No. 14 (7.5 A)fuse in the
under-dash luse/relaY box
Faulty main switch
An open in the wire
14PNK
A,T: Shift lever in E,
ojorE
M/T: Clutch pedal
released
Check for continuity to ground:
There should be continuity.
NOTE: There should be no conti-
nuity when the clutch Pedal is
depressed or when the shift lever
is in other positions.
Faulty A/f gear position switch
Faulty or misadjusted clutch
switch (M/T)
Poor ground (G401, G402)
An open in the wire
BLU/GRN
Under all conditionsCheck for continuity between No. I
terminal and No. 5 terminal of the
PCM connector A.
There should be continuity
. An open in the wire
*: '99 - 00 models with A,/Tl-,
23-243

)Actuator Test
't.Disconnect the actuator cable from the actuator rod
and the 4P connector.
Connect battery power to the No 4 terminal and
ground to the No. 1, No. 2 and No. 3 terminals.
Connect a vacuum pump to the vacuum hose Then
apply vacuum to the actuator.
2.
VACUUM PUMPGAUGE,0 - 30 in.Hg.
{A973X - 041 -
xxxxxl
ACTUATOR
,lP CONNEcToR
Terminalside o{male termrnals
4. The actuator rod should pull in completely. lf the rod
pulls in only pan-way or not at all' check for a leak-
ing vacuum line or defective solenoid.
ACTUATOF ROD
l-t
23-247
5. With voltage and vacuum still applied, try to pull the
actuator rod out by hand. You should not be able to
oull it out. ll you can, it is defective
1.
Disconnect ground from the No.3 terminal. The actu-
ator rod should return lf it does not return, but the
vent hose and filter are not plugged, the solenoid
valve assembly is defective.
Repeat steps 2 through 5, and disconnect ground
from the No. 1 terminal. The actuator rod should
return. lI it does not return, but the vent hose and
filter are not plugged. the solenoid valve assembly
is defective.
It you replace the solenoid valve assembly, be sure
to use new O-rings on each solenoid.
Disconnect power and ground from the 4P connector.
Disconnect the vent hose from the actuator. Connect
a vacuum pump to the actuator vent hose port, and
apply vacuum. The actuator rod should pull in com-
pletely. lf not, the vacuum valve is stuck open.
Replace the actuator'
8.

Power Door Locks
Circuit Diagram (With Keyless Entry System: '96 - 98 modelsl
WHTi BLK
WHT/BED
WHT/BLU
LOCK KNOB
n
Y KEY| -----.f--;-)
i-q__!J
8LK
G551
ll,o"., L
I PASSENGER'SI DoOF LOCKI ACTUATOR
IIYEUREO
WHT/RED WHT/FED
l,l,
tA-r rA] r.
qJ_*:[:,,,:
liqi*"""r llqi*'€trYELIRED YELi REDBLK
I
No.4l 180A) N0.42 (40A)
WHT/GRN
UNDER.HOOD FUSEi RELAY BOX
POWER OOOR LOCK CONTROL UN T
uNLocK@ rocK @
t'8LU/REDI'YELTRED
GRNiORN
GRN/]/VHT
BLK
G55l
23-252

Power Door Locks
Control Unit lnput Test ('96 - 98 models and'99 - 00 models without
Keyless Entry Systeml (cont'dl
Disconnect the 12P connector from the power door lock control unit.
CAUTION: To prevsnt damage to the actuator, apply battery voltage only momentarily.
Cavity WireTest conditionTest: Desired resultPossible cause if result is nol obtained
*: With keyless entry system
Reconnect the 12P connector to the power door lock control unit.
Cavity WireTest conditionTssl: Desirsd losullPossible cause it resull b not obtained
4BLKUnder all conditionsCheck for continuity to ground:
There should be continuity.
. Poor ground (G55'l ). An open in the wire
WHT/GRN
Under all conditionsCheck for voltage to ground:
There should be battery voltage.
. Blown No. 51 (20 A)fuse in the
under-hood fuse/relay box. An open in the wire
2YEURED
Connect the YEURED
terminal to the WHT/
GRN terminal, and the
WHT/RED terminal to
the BLK terminal
momenraflty.
Check door lock operation:
All passenger's doors should
untocK.
Blown No. 51 {20 A) fuse in the
under-hood fuse/relay box
Faulty actuator
An open in the wire
3BLU/RED
Connect the BLU/RED
terminal to the WHT/
GRN terminal. and the
WHT/RED terminal to
the BLK terminal
momenraflry.
Check door lock operation:
Driver's door should unlock.
5WHT/RED
connect the WHT/RED
terminal to the WHT/
GRN terminal, and the
YEL/RED terminal to
the BLK terminal
momenrafl ty.
Check door lock operation:
All passenger doors should lock.
BLU/YEL
Under all conditions.Check for continuity between the
power door lock control unit l2P
connector No. 6 terminal and
audio unit 16P connector No. 3 ter-
minal: The.e should be continuity.
An open in the wire
GRN,ryVHTDriver's door lock
switch in LOCK
Check for voltage to ground:
There should be 1 V or less.
Faulty driver's door lock switch
Poor ground {G551)
An open in the wire
8GRN/ORNDriver's door lock
switch in UNLOCK
7BLUA/VHT
Driver's door lock knob
in LOCK
Check for voltage to ground:
There should be 1 V or less.
Faulty driver's door lock actuator
Poor ground {G551)
An open in the wire

)Control Unit Input Test ('99 - 00 models with Keyless Entry System)
1.Remove the driver's kick panel.
Disconnect the 18P connector from the control unit.
Inspect the connector and socket terminals to be sure they are all making good contacl.
. lf the terminals are bent, loose or corroded, repair them as necessary, and recheck the system
. lf the terminals look OK, make rhe following input tests at the connector.
- lf anv test indicates a problem, find and correct the cause, then recheck ihe system
- lf all the input tests prove OK, the control unit must be faulty; replace it
Wire side oI female terminals
Disconnect the 18P connector from the power door lock control unit.
CAUTION: To provent damage to the actuator, apply battery Yoltage only momentarily.
Cavity Wir€ Test conditionTest: Desired resultPossible cause if result is not obtained
BLK/YELRED/SLK
25618
910/,'2 ,/
'151718
LTWHT
17BLKUnder all conditionsCheck for contlnuity to ground:
There should be continuity.
. Poor ground (G551)
. An open in the wire
t8WHT/GRN
Under all conditionsCheck tor voltage to ground:
There should be battery voltage.
. Blown No. 5'1 (20 A) luse in the
under-hood tuse/relay box
. An open in the wire
4B LK/YEL
lgnition switch ON (ll)check for voltage to ground:
There should be battery voltage.
Blown No. l4 (7.5 A) fuse in the
under-dash fuse/relay box
An open in the wire
(cont'd)
23-259
l-r

Power Door Locks
Control Unit Input Test ('99 - 00 models with Keyless Entry System) (cont'd)
BLU/RED WHT/RED
8LU/WHT8LK/YELRED/BLK
2345618
91012/t/t517td
LT GRN,/RED
BLK
Wire side of female terminals
Disconnect the 18P connector from the oower door lock control unit.
CAUTION: To prevent damage to the actuator, apply baftery voltage only momentarily.
Cavity WileTest conditionTest: Desired resultPossible cause if result is not obtained
BLU/RED
YEL/RED
WHT/GRN
GRN/WHT
IYEURED
Connect the YEURED
terminal to the WHT/
GRN terminal, and the
WHT/RED terminal to
the BLK terminal
momenraflty,
Check door lock operation:
All passenger's doors should
untocK.
Blown No. 51 (20 A) fuse in the
under-hood fuse/relay box
Faulty actuator
An open in the wire
5BLU/RED
Connect rhe BLU/RED1
terminal to the WHT/
GRN terminal, and the
WHT/RED terminal to
the BLK terminal
momenlaflry_
Check door lock operation:
Driver's door should unlock.
7WHT/RED
Connect the WHT/RED
terminal to the WHT/
GRN terminal, and the
YEURED terminal to
the BLK terminal
momenlaflry.
Check door lock operation:
All passenger doors should lock.
23-260

I
Reconnect the 18P connector to the power door lock control unit
Cavitv Wire Test condition Tost: Desired resultPossible cause it r€sult is not obisinod
23-261
l-l
'10GRNA/VHTDriver's door lock
switch in LOCK
Check for voltage to groundl
There should be 1 V or less.
. Faulty driver's door lock switch. Poor grou nd (G551)
. An open in the wire
9GRN/ORNDriver's door lock
swirch in UNLOCK
2BLU,ryVHT
Driver's door lock knob
in LOCK
Check for voltage to ground:
There should be 1 V or less.
Faulty driver's door lock actuator
Poor ground {G551)
An open in the wire
3BLU/RED
lgnition key inserted
into the ignition key
swttcn
Check for voltage to groundl
There should be 1 V or less
Check for voltage to ground:
There should be 4 V or more
Ch."k f"r ".lt"r" t. g|'"r^d
There should be banery vollage
Poor ground (G401, G402)
Faulty ignition key switch
An open in the wire
Shon in the wire
A o*n tto gO ,i5 A' fr." in tf'"
Lrnder hood fuse/relay box
Faulty combination light switch
An open in the wire
lgnition key removed
from the ignition key
swtrcn
RED/BLK
Combination light
switch in " :m: "
position
LT GRN/
RED
Each door open, one at
a trme
Check tor voltage to ground:
There should be 1 V or less.
Faulty door swilch
An open in the wire
GRY
U nder all conditionsBlown No. 52 (15 Al fuse in the
under hood fuse/relay box
Faulty horn
Fau lty horn relay
An open in the wire
Connect to ground:
Horn should sound.