ignition HONDA INTEGRA 1994 4.G Manual Online

Blower Motor
View from wire side
View from wire side
Blowor motor doos noi iun at all.
check the No. 37 (4o A) fuse intho under-hood fuse/relay box.
At th€ blower motor 2P connec-tor, connect the BLU/8LK wirc ter-minal to body ground wath ajumpe. wire.
Turn the ignition switch ON (ll).
Does the blower motor run?
Disconnect the blower motor 2Pconnector, and measure the vol-tago between the ELU/wHT wireterminal {+} and body ground
{-}.
Turn the ignition switch OFF.
Remove the blower motor relavfrom the under-hood fuse/relavbox and test it {see page 21-3O}.
Roplaco tho blowor motor rolay.
Measure the voltage betwgen theNo. 1 terminal (+) and bodyground (- ).
To page 21-12
To page 2l-13
"uf"'\'
,)
(cont'dl
21-11

From page 21-11
Turn the ignition switch OFF.
Remove the heater control pan6l(see page 21-25).
Turn the ignition switch ON (lll.
Measure the voltage b€twsen the8LU/BLK wire terminal l+) andbody ground {- ).
Rgp.lr op.n In lh. BLU/BLK wh.batwoen lh! blowar motor lndtho hcolar f.n .wltch.ls there battory voltage?
Turn the ignition switch OFF.
Check tor continuity in lhe BLKwire between the heater lanswitch and body ground.
Ch.ck tor an opan in lhr Bl-K wirobdtwaan tho hortar tln lwftch.nd body ground. lf tho wlra l.OK, ch.ck for poor ground .tG201 .nd /rO1.
Roplaco tho hsator tan lwitch.
Troubleshooting
Blower Motor (cont'dl
View trom wire side
BLU/BLK{ + }
21-12

From page 21-11
Tu.n the ignition switch ON (ll).
Measure tho voltage botwoon thoNo. 4 torminal (+) 6nd bodvground (- l.
Ropair opan in tho BLK/YEL wir.batworn lha undor-hood fuaa/ra-hy box snd tho undor-dr.htur./rolay box.
ls there battery voltage?
Turn the ignirion switch OFF.
Check for continuity between theNo. 2 torminal and body ground.
Ch.d( to. !n oF|rn in th6 BLK wirobatwagn lho undar-hood luro/ra-lry box lnd body ground. ll th.wlre it OK. chock tor poo. groundat G2Ol lnd G/lol.
Rop.ir opon in th. BLU/WHT wlr.betweon tho undsr-hood lura/l.-lay box and tho blowor motoi.

Troubleshooting
Mode Control Motor
21-14
Modo control motor dooa not nm,
or ono oa moto modo arc In_
oporgtivo.
Disconnect th6 mode control mo_
tor 8P connector.
Turn the ignition switch ON (ll).
Measuroth€ voltage b€tween tho
BLK/YEL wire terminal (+) and
bodv ground (- ).
R.p.lr op.n In lho BLrrYEL wl..
bctw.rn lha undard!.h fuaa/ru-
l.y box .nd ih. mod! corttol
motor.
Turn the ignition switch OFF.
To page 21-1 5

Recirculation Control Motor
ffi
Rocirculation control doo. dooanot chsng€ botwoon FRESH 6ndRECIRCULATE.
Disconnect the rgcirculation con-trol motor 4P connector.
Turn the ignilion switch ON l).
Measure the voltage between theBLK^/EL wire rerminal {+) andbody ground (- ).
Reprir op.n In th. BIK/YEL wir.botwoon thr und.r+rh fu!./r.-by box 6nd lha radrculdion co.r-trol motoi.
ls there battery voltage?
Turn the ignition switch OFF.
To page 21-18
{cont'd)
21-r 7

From prge 22€
Disconn.ct the iump.r wirc lndtu.n th6 ignition gwitch ON (fD.
Mo66u,o tho voltlgs botwoon thoNo. 4 torminll (+) 6nd bodvground {-}.
Rap.lr o9.|| ln th. GRN wlr. b+,twaan tha ondar.hood tuaa/rtLy box .nd thr A/C diod..
B.p.lr olrn h th. BLX.IYEL wlrrbatw..n th. undar.hood tu../rcl.y bor aDd iha undar.darhfur/r.Ly box.
22-9

From page 22-10
Disconnect the iumper wire andturn the ignition switch ON (ll).
Measure the voltage between theBLK/WHT wire terminal (+) andbody ground (-).
Reptir open in tha BLK/WHT o.BLK/YEL wire betwoon tho con-den3o. f.n rel.y and tho unde.-dash tus6/rel.y box.
Remove the iay'C diode from theAy'C diode 3P connector.
ls the A,/C diode OK?
Reprir op6n in th. BLU/YEL wirebetwocn tho conden3er tsn reltv.nd tho A/C diod€.
22-11

Troubleshooting
Bolh tanr lradiltor and con-
dan.arl do not run fot anginacooling. bul th.y bolh tun whh
th. A/C on.
Disconnect tho engino coolanltemporsture (ECT) switch 2P con-
n6ctor.
Turn rhe ignition switch ON (ll).
Measure th€ voltago botw€en th6
cRN wire terminal (+) and bodyground {-}.
R.p.ir op.n in ih. GRN wir. b.-
tw..n th. ECT .wilch .nd th.
undrr.hood ful./t l.y box.
Turn the ignition switch OFF and
check lor continuity in the BLK
wire beMeen the ECT switch and
body ground.
Ch.ck tor.n op.n in th. BLK
wir. b.lw.!n th. ECT .witch.nd body ground. It th. wit. i.
OK, chacl lor poor Oround tt
G10r.
Do€s it road above normal?
22-12

Frcm page 22-11
Bdt ry vohro.?
_@_____-l
Turn the ignition switch ON (lI).
M€asure the voltage betweon th6BLK/YEL wire terminsl {+) andbody ground (-).
R.p.i. opcn in th. 3LX/YEL wirrbalwarn tha undar.da3h tuaa/.clay box and iha como.aaao.clutch rahy.
ls there battery voltage?
Turn the ignition switch OFF andinstall the comprossor clutchrelay.
Connect the test harness "A" and"8" conoectors to th6 main wireharness only, not to the ECM (s6gsection 11).
Turn th6 ignition switch ON (II).
Measure the voltagG between theA15 terminal (+) and bodyground (-1.
R.prir op.n in th. BLK/RED wirtb.twran the compraa.or clotch..1.y .nd th. ECM.
Make sure the A/C and heate. tenswitch6s are OFF.
Measure tho voltage b€tween the85 terminsl (+) and body ground(-).
R.p.ir op.n in th. BI-U/RED wir.b.tw.rn th. A/C diod. .nd th.CCM.
Sub.titute r known-good ECMand rocheck. lt lymptom/indicr-tion go€3 rwry, rapbca th. origi-nrl ECM.
Blttary vohago?
r_--@_Bs {+)
TEST HARNESS07t4, - PT3010a
" , -1llltf,'tfrSfiiwiafi
22-15

Troubleshooting
A/G System
10 page 22-17
A/C ay3t6m doe3 not como on(compro!3or and both f.ns).
Disconnect the A/C pressure
switch 2P connector.
Turn the ignition switch ON (II).
Measure the voltage beoveen the
BLU/RED wire terminal (+) and
bodv ground 1-).
Reprir opon in thc 8LU/RED wire
batwoan tho A/c prossute
rwitch rnd th. A/C diod..
Turn the ignition switch OFF.
Check lor continuity betwoen the
No. 1 and No. 2 terminals of the
A,/C pressure switch.
Check for NC system Pressure.
Reco n nect the A/C pressure
switch 2P connector.
Rophce tha A/C pre3!u.6 awitch.
View from wire side
YEL/WHTBLU/RED {+l
22-16