electrical ACURA INTEGRA 1998 Service Owner's Manual

Diagnostic
Trouble Code(Drc)*
,94
lndicator
Light
SymptomPossible CauseRefer to
Page
P1153(1)Blin ks
Lock-up clutch does not engage,
Lock-up clutch does not disen-
gage.
Disconnected lock-up control solenoid
valve A connector
Short or open in lock-uP control
solenoid valve A wire
Faulty lock-up control solenoid valve A
14-56
P1758
t2lBlinks
. Lock-up clutch does not engage.Disconnected lock-up control solenoid
valve B connector
Short or open in lock-uP control
solenoid valve B wire
Faulty lock-up control solenoid valve B
14-58
P1790(3)Blinks
. Lock-up clutch does not engage.Disconnected throttle position (TP)
sensor connector
Short or open in TP seflsor wire
Faulty TP sensor
14-60
P1191(4)Blinks
. Lock-up clutch does not engage.Disconnected vehicle speed sensor
{VSS} connector
Shon or open in VSS wire
Faulty VSS
14-61
P1705
(5)Blinks
. Fails to shift other than 2nd - 4th
gears.
. Lock-up clutch does not engage.
. Shod in AvT gear position switch wire
. Faulty A,/T gear position switch14-62
P1706(6)OFF
' Fails to shift other than 2nd -
3rd - 4th gears.
. Lock-up clutch does not engage.
Disconnected A/T gear position switch
connector
Open in A/f gear position switch wire
Faulty A/f gear position switch
14-64
P0753
(71Blinks
. Fails to shift (between 1st - 4th
or 2nd - 3rd gear only).. Fails to shift (stuck in 4th gear).
Disconnected shift control solenoid
valve A connector
Short or open in shift control solenoid
valve A wire
Faulty shift control solenoid valve A
14-66
P0758(8)Blinks
. Fails to shift (stuck in 1st or 4th
gears).
Disconnected shift control solenoid
valve B connector
Short or open in shift control solenoid
valve B wire
Faulty shift control solenoid valve B
14-68
P0120(9)Blin ks
Lock-up clutch does not engage.Disconnected countershaft speed sen-
sor connector
Short or open in countershaft speed
sensor wrre
Faulty countershaft speed sensor
1+10
P1192
00)Blinks
. Lock-up clutch does not engage,Disconnected engine coolant tempera-
ture (ECT) sensor connector
Short or open in ECT sensor wire
Faulty ECT sensor
14-72
P0725
{1 1)OFF
Lock-up clutch does not engage.Disconnected ignition coil connector
Short or open in ignition coil wire
Faulty ignition coil
14-73
Symptom-to-ComPonent Chart
Electrical System
(DTC)*: The DTCS in the parentheses are the codes the E indicator light indicates {blinks) when the service check connec-
tor is connected to the special tool (SCS service connector)
4-54

Electrical Troubleshooting
Troubleshooting Flowchart - Lock-up Control Solenoid Valve A
Po+tible Cauta
' Diaconnac'tad lock-up control
lolanoid valva A connac'toa. Shon or opan in lod(-up co|ltrol
3olonoid valva A wire. Faulty lock-up cont?ol lolanoid
TCM CONNECTORS
WIRE SIOE OF FEMAI."E TERMINALS
WIRE SIDE OF FEMA.E TEBMINAIS
L/
. OBD ll Scrn Tool indic|t.3 Cod.
P17!i:t.. Self-Dirgnoii! E indic.torlight blinkr onco.
M.Nur. VREF Voh.go:'t. Disconnect the A (26P) and B(22 P) conn€ctors lrom th€
TCM.2. Turn tho ignition switch ON (ll).
3. Nleasure tho voltage betwson
the 820 and A13 or A26 tormi-nals.
Raplir opan or 3hort in tha wi.a
b.twa.n th. B20 t.lmin!l .nd
th€ EcM.lsthere approx. 5 V?
Check tor a Short to Powa.i
Measure tho voltag€ botwoen the
A16 and A13 or A26 terminals.
Rap!fu ahorl to Pow.t in tha wlra
b!tw..n th. A16 t rmln.l rnd tho
lock-up c!filtol lolaooid valvo A.
Moaaurc Lock-uP Contlol Sole-
noid Vrlvo A Be3bianco:1. Ttrrn the ignition switch OFF.
2. Measure the rssistancebetween the A16 and A13 or
A26 terminals.
Chack tor loolc TCM conncctora.lf naca!3!ry, rub3tftuta a known'good rolcnold v.lva a$amblY ol
TCM .nd r.ch.ck.
ls the rosistanco 12 - 25 O?
To page 14-57
\
14-56

Electrical Troubleshooti n g
Troubleshooting Flowchart - Lock-up Control Solenoid Valve B
Poitibl. Cau3o
. Dbconn.stsd lock-up controlsolenoid valv6 B connectol. Short or open in lock-up cont.ol3olonoid valva B wiro. Faulty lock-up conttol solcnoidvalva BTCM CONNECTORS
WIRE SIDE OF FEMALE TERMINALS
wlRE SIDE OF FEMAIE TERMINALS
Moa3ure Lock-up Control Sol.-noid Vrlv. B R$btanco:1. Turn the ignition switch OFF.2. Measure the reslstancebotween the A15 and A13 or426 terminals.
.. ls the r€sistance 12 -25A?
14-58
u,
NO
. OBD ll Scrn Tool indicrt.3 Cod.P1758.. Self-Oiagnosis E indicato.light blink3 twics.
Moasuro VREF Vohago:1. Disconnect the A (26P) and B(22P) connectors from theTCM.2. Turn the ignition switch ON (ll).
3. Measure tho voltage betweenthe 820 and A13 or 426 termi-nats.
Rapair opan or lhort in iho wirobatwaan tho 820 terminal andth. ECM.ls there approx. 5 V?
Check for a Shon to Powar:Measure the voltage between th€A15 and A13 or A26 terminals.
Rapair .hort to powar in tha wircbatr.,aon tha A15 ta.mlnal and thalock.up control rol.noid valva B.
Chack for loo.. TCM connactoB.It necassrry, 3ub3thuta ! known-good 3olcnoid valve .ir€mbly olTCM .nd r6ch.ck.
To page 14-59
*d
*,

Electrical Troubleshooting
Troubleshooting Flowchart - Throttle PositionITP}Sensor
Po3Cblc C!us.
. Dirc.nn.c.t d throttlo pothion
lTPl ranaor connac'tor. Shon of opan in TP aanror wiro. Faulty TP ianror
TCM CONNECTORS
WIRE SII'E OF FEMAI.I TERMI'TALS
' OBD ll Sc.n Tool indlclto3 CodcP1790.. Soll-di.gnosi. E indic.tollighi blinks tht.e tim*,
Check tor Anoth.r Code or MILBlinking:1. Turn the ignition switch oN (ll).
2. Check whether rhe OBD llscan tool indicatss anothercode or the Malfunction lndi-cator Lamp (MlL) blinks (seo
soction l1).
Ooes the OBD ll scan tool indi-cate the anothor code or is theMIL blinking?
Morrur. VBEF Vohag.:1. Turn the ignition switch OFF.2. Disconnect the A (26P) andB (22P) connectors trom theTCM.3. Turn the ignition switch ON (ll).
4. Measure the voltage b6twsonthe 820 and A13 or 426 termi-nats.
RcpaiJ opon or thort in tha wlJab.tt r..n lho 840 t rlnlnal md lh.ECM.ls there approx. 5 V?
Mer3uro TPs vohrg.:Measure th€ voltage between th684 and A13 or A26 terminals.
Rapair opon oa rhoat in thr wlrab.tw.cn th. B4 t.rmln.l .nd th.TP aansor.ls there 0.4 - 0.6 V?
Ch.ck lor loosa TcM connactorr.ll nocassary, rubditut. r known-good TCM and r.chock.
t26Pl
U
\./
\"/
14-60
.d
{
4

Electrical Troubleshootin g
Troubleshooting Flowchart - A/T Gear Position Switch (Short)
Llu
Po$ible Cause
' Shon in A/T gea. position
switch wire. F.ulty A/T g€at position switch
NOTE: Code P1705 (5) is set when theTCM receives two gear position inputs
at the same time.
TCM CONNECTOR A {26FI
WIRE SIDE OF FEMALE TERMINALS
{
Measure ATP D. Voltagel1. Shift to all positions other than
o;.2. Measure the voltage betweenthe Ag and 413 or A26 termi'nals.
{
14-62
. OBO ll Scan Tool indicates CodeP1705.. S6lt-diagnosis Pr-,.. indicatorlight blinks five times.
Observe the A/T gear position
indicator:1. Turn the ignition switch ON {ll).2. Observe the A/T gear position
indicator, and shift each Posi-tion separately.
The syslem is OK at this time.Ch€ck the wite hotn€ss for dam-a9e,
Do any indicators stay on when the
shift lever is not in that position?
Measure ATP R Voltage:1. Turn the ignition switch ON (lli.
2. shitt to all positions otherthan E.3. Measure the voltage betweenthe A11 and 413 or 426 termi-nals.Check for short in ihe wire
betwe€n the 411 termin.l and theA/T gear position switch or A/Tg6ar position indicator. lf wire is
OK, check tor lo6e TCM connec-
tors. lf necessary, substitute a
known-good TCM and rech€ck.
ls there battery voltageT
Measure ATP PN Volt.go:1. Shift to all positions otherthan E or E.2. Measure the voltage betweenthe 410 and A13 or 426 terminals.
Check for 3hort in the wire
between the A10 tetminal andthe A/T gear position indicator,or a short in the wir63 betweenthe A/T gear position indicatorand A/T g€ar position switch. lfwires are oK, check for looseTCM connecto13. lf necessarv,3ubslitute a known-good TCM
and recheck.
Check for 3hort in the wirebetween the Ag terminal and thoA/T gear po3ition switch. lf wireis OK, check tor loose TCM con-neclors. ll necessary, substitute aknown-good TCM and recheck.
To page 14 63

Electrical Troubleshooting
Troubleshooting Flowchart - A/T Gear Position Switch(Openl
Po3.ible Cause
. Di"""."."i"d A/T ,"". p""iti
switch connoctor. Open in A/T ge.r position
switch wire. Faulty A/T gear position switch
TCM CONN€CTOR A (26PI
WIRE SIDE OF FEMAI.E TERMINALS
Measuro ATP D. Voltage:1. Shift to E position.2, Measure the voltage betweenthe Ag and A13 or 426 termi-nals.
ls there voltage?
14-64
BRN/BLK
NO
. OBD ll Scsn Tool indicate. CodeP1706.. Self-diagnosis E indicatorlight blinks six times.
Measuro ATP R Voltago:1. Turn the ignition switch ON (ll).
2. Shift to E position.
3. Nleasure the voltage betweenthe 411 and 413 or 426 terminals.
Repair open in the wire bctweanthe A11 te.minal and the A/Tgear position switch.
Moasure ATP PN Volt.ge:1. Shift to E or E position.
2. Measure the voltage betweenthe 410 and A13 or 426 termi-nals.
Ropai. open in the wirs betweentho A10 terminal snd the A/Tgear position indicator.
Repair open in the wire betweenthe Ag terminal end the A/T g€arpo3ition switch.
To page 14-65
VJ

Electrical Troubleshootin g
Troubleshooting Flowchart - Shift Gontrol Solenoid Valve A
,
Possiblc Cause
. Dbconnoctod shift controlsolonoid vrlv€ A conneclot. Short or oDen in 3hift controlsolenoid valve A wire. Faulw 3hift control solanoid
Morsure VREF Vohag6:1. Disconnect the A (26P) andB (22P) connectors trom theTCM,2. Turn the ignition switch ON (ll).
3. Measure the voltage betweenthe 820 and A13 or 426 termi-nals.
TCM CONNECTORS
WIRE SIDE OF FEMALE TERMINALS
WIRE SIDE OF FEMALE TERMINALS
14-66
TCM CONNECTOR A (26PI
. OBD ll Scan Tool Indicat . Codem7$.. Self-Diagnosis E indicatorligln blinb sovon times.
Repair open or 3hort in the wirobetwoon tho 820 terminal 3nd
the ECM.ls there approx. 5 V?
Chock lol a Short to Power:Measure the voltage between the
43 and Al3 or 426terminals.
Repail short to powgr in the wirebelwoon the A3 termin.l and th6shift control solonoid valvo A.
Measure Shift Contlol SolenoidValvo A R63btenc.:1. Turn the ignition switch OFF.2. Measure the resista ncebetween the 43 and A13 or426 torminals.
Chock for loo3. TCM connectors.ll nec€ssary, 3ubsthute a known-good solenoid v.lve sssombly orTCM and r6check.
ls the resistance 12 - 25 O?
To page 14-67

Electrical Troubleshootin g
Troubleshooting Flowchart - Shift Control Solenoid Valve B
Po3sibl. Cauao
' Diaconncctad ahift controlsolanoid valve B connoc'tor. Short ol op.n in shift contlolsolanoid valvo B wiro. Faulty lhift control solonoidvalvo B
TCM CONNECTORS
WIR€ SIDE OF FEMALE TERMINALS
WIRE SIDE OF FEMAI."E TERMII{ALS
Me.sure Shift Control Solenoidvalvo B Raliatanco:l. Turn the ignition switch OFF.2. Measure the resistancebetween the 42 and A'13 orA26 terminals.
J
Ug
TCM CONNECTON A (26PI
. OBD ll Scan Tool Indicrt.3 Codem758.. sell"Diagnosi3 [Q indicatorlight blink3.igl|ttlm.!.
Moasur. VREF Voh.go:1. Disconnect the A (26P) andB (22P) connectors from thoTCM.2. Turn the ignition switch ON (lll.
3. Measure the voltage betweenthe 820 and Al3 or A26 termi-nals.
R.pair opan or 3hort in thc wirab.twrqn th. 820 tormin.l and
th. ECM.ls there approx. 5 V?
Check for . Short to Powor:Measure the voltage bstween theA2 and A13 or 426termin8ls.
Rapair Bhort to power in tho wilobotwecn thr 42 laiminal and th.3hift control solanoid valvo B.
Chack lor loos. TCM connactoB.lf n.ceasary, subsiituto a known-good sol.noid valv6 tasambly olTCM rnd rech.ck.
ls the resistance 12 - 25 O?
To page 14-69
Ug

Electrical Troubleshootin g
Troubleshooting Flowchart - Countershaft Speed Sensor
Posalbla Cruae
. Loora or faulty connactionb.tw.$ tho TCM and 61 h!1.
na33. Dbconnactad couniaBhaftlocad lantot oonnac{ot. Shorl or opan in counta6hatttDaad $naor wha. F.ultv coufiaEh.ft apaad acn-aol
COUNTERSHAFT SPEEDSENSOR CONNECTOR
\IJ
U\lO
.-_
lfr-trtlL+l-r-T-
t@tl
L__l
TENMINAL SIDE OF MAIE
TCM CONNECTON B (22PI
TERMINALS
L
14-70
WIBE SIDE OF FEMALE TERMINALS
. OBD ll Scrn Tool Indlcat ! Cod.m720.. Self-diagnosis E indicatollighl blinks nine tim6.
ls the countershaft speed sen-sor installed properly?
Moas{ra Cour 6Ghaft Sp€od Sen-60r R6Btanca gt iha SaGol Con-n€c'tor:1. Disconnect the 2P connectortrom the countershafl spgodsensor connectof.2. Measure the resistance ol thecountershaft speed sensor.
ls the rosistance 400 - 600 O?
Check Countorrhcft Spe.d Son-3ol for r Shon Circuit:1. Disconnect the 8{22P) con-nector lrom the TCM.2. Ch€ck lor continuity betweenbody ground and the 88 t€r-minal and Bg terminal individ-ually.
Rapair rhon In th6 wiro! hwaantho E8 rnd Bg te.min.l. .nd th.countaFhaft !D..d aanaol.
To page'14-71
\,a,

Electrical Troubleshooting
Troubleshooting Flowchart - Engine Coolant Temperature
(EGTISensor
Polribl. Cluta
. Dirconnoct.d Engin. CoollntTampaolur€ IECTI aanaor con.noctot. Short or opcn In ECT..n.or
. F.ulty ECT r.n.or
Tctrrt oot{NEcToRs
WIRE SIDE OF FEMAII TERi'IINAIS
U
{
M6esur. ECT Voh.ge:1. Turn the ignition switch OFF.2. Connect the A (26P) andB (22P) connectors to the TCM.3. Start the engine and w6rm ituP to normal operating tem-pe ratu re (the radiator fancomes on),4, Measure the voltage betweenthe 83 and A13 or A26 termi-nats.
Ii
:
rt.fls there less than 1 V?
Ch.cl fo. looso TCM connac{or3,t nacaasary, substituto a known"good TCM rnd r.chock.
' OBD ll Scsn Tool Indicat6 CodeP1792.. Sett'diagno3i3 E indicatollight indicates Code 10.
Chock tor Anothor Codo or MILBlinking:1. Turn the ignition switch ON (ll).
2. Check wh€ther rhe OBD llscan tool indicates anothercode or the Malfunction Indi-cator Lamp (MlL) blinks (see
section 11).
Does the OBD ll scan tool indi-cate another code or is theMIL blinking?
Moasure VREF Voh.go:1. Turn the ignition switch OFF.2. Disconnect the A {26P) andB (22P) conneotors from theTCM.3. Turn the ignition switch ON (ll).
4. Measu.e the voltage betweenthe 820 and A13 or A26 tormi-nals.
Bap|ir open or thort in tha wircb.two.r th. B:m t.rminll .nd thoECM.
ls there approx. 5 V?
napalr opln in iha wlra brtwaanthe lB t.rminrl lnd th. ECT r.n-ao1.