1994 HONDA INTEGRA body

Supplemental Restraint System (SRSI
Troubleshooting (cont'dl
SRS Indicator Light Stays on Continuously
NOTE: Before troubleshooting, make sure that battery
voltage is 12 V or mo.e. Otherwise you'll obtain wrong
test readings.
1. Make a photocopy of the chart on page 23-283,
2. Connect Test Harness A to the SRS unit as shown.
Tu.n the ignition switch ON (lll.
. Voltages in the chart assume the car's "battery
voltage" is about 12 volts. Less than 12 volts will
result in different or possibly talse readings.
. Do not disconnect the airbags ftom the circuit
when checking SRS unit voltages.
First, check for voltage between Test Harnoss
Terminal No. 12 (+) and ground (-).
. lf no voltage is indicated, go to step I and contin-
ue checking all the other terminals.
o lf vottsge is indicated, there is a poor ground at
the SRS unit. Read the following NOTE, and then
go on to step 5.
I21I
tolll2t3tlrt
23-282
TEST HANNESS
NOTE: The original .adio has a coded theft protection
circuit. Be sure to get the customer's code number
before disconnecting the battery cables.
Before disconnecting any pan of the SRS wire har-
ness, connect the short connecto(s) {RED) to the
airbag(s) (see page 23-2721.
Connect Test Harness B between the SRS unit and
SRS main harn€ss 18-P connector.
7. Check for continuitv between the 85 terminal and
body ground, and the Bl5 terminal and body
ground.
TEST HARNESS B07MAZ - SPqrS{X)
lf there is continuity at either terminal, the SRS
unit is faulty. Replace it and check the voltages
according to the chan on page 23-283.
lf there is no continuity at either terminal, the
SRS unit ground, the SRS unit component
grounds or the SRS main harness is faulty
Check the grounds (check wire and control unit
mounting bolts) and, if necessary, replace th€
SRS main harness. Then check the voltages
according to the chart on page 23-283

Supplemental Restraint System (SRSI
Troubleshooting (cont'd)
NOTE: Do not disconnect the airbag when checking SRS unit voltages.
Without lront Passongor's sirbag:
Modo A: Open in one cowl sonsor conlact
r The SRS unit is faultY. Substitute a known-good SRS
unit and recheck the voltages according to the chart
on page 23-283.
Mods B:
. Short to driver's or Passonger's aitbag inflator body
(body groundl
. Short in dash sonsor
. Opsn in both cowl sgnsor contacts
NOTE: The original radio has a coded theft protection
circuit. Be sure to get the customer's code number
before disconnecting the battery cables.
1. Disconnect the battery negative cable and then the
positive cable. Then connect the short connectots(s)
(RED) to the airbag(s) (see page 23-272).
2. Connect Test Harness B between the SRS unit and
A
B
SRS main harness 18-P connector.SRS UN]T'...SRS MAIN HARNESS18.P CONNECTOR
3. Reconnect the driv€r's airbag connector, then check
continuity between the B1 terminal and body
ground, and b€twesn the 87 terminsl and body
grounq,
TEST HABT{ESS B
. lf there is continuity at either terminal, go to step
o.
. lf there is no continuity at sither terminal'
- go to step 5 (without front passonge/s airbag)'
- go to step il (with front passenger's airbag)'
Reconnect the front passonger's sirbag connector,
then check continuity betwo€n ihs 82 t€rminal and
body ground, and between the 88 terminal and
body ground.
lf there is continuity at either terminal, go to step
10.
lf there is no continuity at either terminal, go to
step 5.
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23-284

Check continuity between body ground and eachterminal of both dssh sensors.
TEST HARNESS Bo?MAZ - SFmSd)
. lf there iscontinuity at anyof theterminals, go tostep 12.
. lf thsre is no continuity at any terminal, go tosteo 13.
Disconnect the cable reel 6-p connector from theSRS main harn€ss, then connect Test Harness Conly to the cable reel side of the 6-p connector.
CABLE NEEL &P CONNECTOR
7.Check continuity between the No. 4 terminal andbody ground, and between the No. 5 terminal andbody ground.
TEST HABI{ESS C07LAiZ - SLIO:loo
lf there is continuity at either terminal, go to step8.
lf there is no continuity at either terminal, theSRS main harness is faulty. Replace it and re_chsck the voltages according to the chart onpage 23-283.
(cont'd)
23-285

Supplemental Restraint System (SRS)
Troubleshooting {cont'd}
8. Disconnect the drive/s airbag 3-P connector trom
the cable reel, then connect Test Harness C to the
driver's airbag 3-P connector.
Check continuitv between the No. 7 terminal and
body ground, and between the No. 8 terminal and
body ground.
lJ there is continuity at either terminal, the driv-
er's airbag inflator is faulty. Replace it and
recheck the voltages according to the chart on
page z3- z6J.
lf there is no continuity at either terminal, the
cable reel is faulty. Replace it and recheck the
voltages according to the chart on page 23-283.
DRIVER'S AIRBAG
23-286
10. Disconnect the front passenger's airbag 3-P connec-
tor from the SRS main harness, then connect Test
Harness C to the airbag side of the connector.
FRONT PASSENGER'SANBAG
Check continuitv between the No. 7 terminal and
body ground, and between the No. 8 te.minal and
body ground.
lf there is continuitv at either terminal, the Jront
passenger's airbag inflator is faulty. Replace it
and recheck the voltages according to the chart
on page 23-283.
lf there is no continuitv at either terminal, the
SRS main harness is faulty. Replace it and
recheck the voltages according to the chart on
page 23-283.
11.
o7LAiZ - Slao:tq,

12.Connect Test Harness D between the dash sensorand SRS main harness 2-P connector. Check conti-nuity between the No. 1 terminsl and body ground,
8nd between the No.2 terminal and body ground,
sRs MA[{HARNESS2-P OOTTNECTOR
TEST HARNESS Do?LAiZ - SL()a(xt
. lf there is continuity at either terminal, the dashsensor is faulty. Replace it and recheck the volt-ages according to the chan on page 23-293.
. lf there is no continuity at either terminal, theSRS main harness is faulty. Replace it andrecheck the voltages according to the chart onpage 23-283.
Measure the resistance between the l6ft dash sen-sor terminals B'12 and Bl6, and between the rightdash sensor terminals B4 and 86.
IEST HARNESS B07MAZ - SPqt500
TEST HARNESS DotlA:z - sl(,(x)
rffi-l
??
t'l
o lt rssistance is 3.8 - 4.2 kO for both sensors. theSRS unit is faulty. Substitute a known-good SRSunit €nd recheck the voltages according to th€chart on page 23-283.
o lf resistancs is l6ss thsn 3.8 kO for either sensor.go to step 14.
1il. Connect Test Harness D between the dash sensorand SRS inain harness 2-P connector. Measure theresastance between the No. 1 terminal and No. 2 ter-minal.
SRS MAINHARNESS2.P CONNECTOR
TEST HAR ESS D07LAZ - SL.{)a(xl
TEST XARNESS DotlA:z - sl4|)4tx)
lf resistance is 3.8 - 4.2 kO, the SRS main harnessis faulty. Replace it and recheck the voltagesaccording to the chan on pag€ 23-283.
lf resistance is less than 3.8 kO, the dash sensoris faulty. Replace it and recheck the vottagesaccording to the chart on psge 23-283.
(cont'd)
23-287

Supplemental Restraint System (SRSI
Troubleshooting {cont'dl
Modc H: Blown SRS No. 25 fur., ol opcn in the wire
NOTE: The original radio has a coded theft protection
circuit. Be sure to get the customer's code number
betore disconnecting the battery cables.
1. Ch€ck the SRS No. 25 (10 A) fuse in the under-dash
fuse/relay box. lf it's OK, go on to step 2.
lf it's blown, replace it with a now 10 A fuse, then
turn the ignition switch ON (ll):
. lf the fuse doesn't blow, 90 on to step 2.
. lf the fuse blows. troublsshoot as necessary to
find th6 short.
2. Disconnect the battery negative cable and then the
positive cable. Then connect the short connector(sl
(RED) to the airbag(s) (see page 23-272).
3. Conn€ct Teat Harnsss B between the SRS unit and
the SRS main harness 18-P connector.
SRS UNIT
23-292
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26161oll12161a17|a
Reconnect th6 positiv€ 8nd negative cable to the
battery.
Measure ths voltage between the 813 terminal (+)
and body ground {-)with the ignition switch ON (ll).
TEST HAN ESS BoTMA:Z - SPOOs{X'
lf there is battery voltage, the SRS unit is faulty.
Replace it and rscheck the voltages according to
the chan on page 23-283.
lf there is lsss than b8ttery voltage, the SRS main
harness is faulty. Replace it and recheck the volt-
ag6s according to the chart on page 23-283.

Modc l: Short 01 opcn in SRS indicrtor whc hrrnaas
1. Disconnect tho SRS main harness 4-p connectorfrom the main wirs harn6ss.
WIRE HABNESS
2. Turn the ignition switch ON (ll) 8nd wait for six sec-onds. Measu.s the voltage between ths No. il termi-nal (+) in the SFS main harness 4-P connector andbody ground,
. lf voltage is more thsn 8.5 V, go to step 8.
. It voltage is less than 8.5 V, go to step 3.
NOTE: The original radio has a coded theft protec-
tion circuit. Be sure to get the customer's codenumber before disconnecting the banery cables.
*-
F4
BLU
d.L
Vrow llom wi|! rftro.
Disconnect the battery negative cable and then thepositive cable. Then connect the sho.t connector(s)(REDlto the airbag(s) (see page 23-272).
Connect Test Harness B between the SRS unit andSRS main harness 18-P connector.
5. Reconnect the battery positive cable and negativecaote.
6, Check for continuity between the 811 terminalbody ground.
lf there is continuity, the SRS main harness isshorted. Replace the SBS main narness anorecheck the voltages according to the chart onpage 23-283.
lf there is no continuity, go to step 7.
(cont'dl
23-293

Supplemental
Troubleshooting(cont'dl
RestraintSystem (SRSI
7.Check for continuity between the 811 terminal of
Test Harness B and the No. 4 terminal of the SRS
main harness 4-P conngctor,
oTurn ths ignition switch ON {ll} and wait for six sec-
onds. Measure the voltage between the No. 5 termi-
nal (+) and body ground (-).
TEST HARNESS B07MAZ - SF|D500
OASHSOARO IVIRE HARNESSs.PCO ECTOR
Vraw from sil! rira,
8.
. lf there is continuity, the SRS unit is faulty,
Replace it and recheck the voltages according to
the chart on page 23-283.
. lf there is no cootinuity. there is an open in the
SRS main harness. Replace the SRS main h8r-
ness and recheck the voltages according to the
chart on page 23-283.
Reconnect the SRS main harness 4-P connecto. to
the main wire ha.ness. Disconnect the dashboard
wire ha.ness 5-P connector from the gauge assem-
Dtv.
lf voltage is mora than 8.5 V, the SRS indicator
circuit is faulty (in the gauge assemblyl. Replace
the SRS indicator circuit assembly and recheck
the voltsges according to the chart on page 23-
243.
lf voltage is less than 8.5 V, the dashboard wire
harness (or th€ main wire harness) is faulty.
Replace it and recheck the voltages according to
the chart on page 23-283.
DASHBOARD WIRE HARNESS5.P OONNECTOR
23-294