1998 HONDA INTEGRA indicator

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14-55
Diagnostic
Trouble Code(DTC).
Ej
lndicator
Light
SymptomPossible CauseRefer to
Page
P1794
(131Blinks
. No specific symptom appears.. Short or open in LT GRN wire between
82 terminal and ECM. Faulty barometric pressure (BARO)
sensor
NOTE: BARO sensor is built into ECM.
't 4-7 4
P1786
(14)Blinks
. Transmission jerks hard when
shifting.
Short or open in FAS (YEL) wire
between 819 terminal and ECM
Faulty ECM
14-76
P0715
(15)Blinks
. Lock-up clutch does not engage,Disconnected mainshaft speed sensor
connector
Short or open in mainshaft speed sen-
sor wrre
Faulty mainshaft speed senso.
14-74
P0740
{ none,OFF. Lock-up clutch does not engage.Faulty lock-up control system14-80
P0730
I none,
. Fails to shift (between lst - 2nd,
2nd - 3rd, 1st - 4th. 3rd - 4th,
1st - 2nd - 3rd, 1st - 2nd - 4th,
1st - 3rd - 4th, or 2nd - 3rd - 4th
gears onry).. Fails to shift (stuck in 1st gears).
. Faulty shift control system
14-81
P0700
(none)
. Other automatic transmission problem (s)
Inspeclthe a utomatic transmission problem (s)accordingto the DTC (s)indicated with code m700.
(DTC)*: The DTCS in the parentheses are the codes the E indicator light indicates (blinks) when the service cnecK connec-tor is connected with the sDecialtool {SCS service connector).
NOTE: WhentheOBDll Scan Tool orHonda PGM Tester indicates the DTC(S) for the automatic transmission control sys-
tem, the scan tool or tester also indicates code P0700 simultaneously. Code P0700 means detection of some automatic
transmission problem on the PGM-Fl control system.
lf the self-diagnostic E indicator light does not blink. perform an inspection according to the table below.
NOTE:
. lf a custombr describes the symptom for code P1706 (6), P0725 (11) or P0715 (15), it will be necessary to recreate the
symptom by test-driving, then recheck the DTC,. Sometimes the E indicator light and the Malfunction Indicator Lamp (MlL) may come on simultaneously. lf so, check
the PGM-Fl system according to the DTC, then reset the memory by removing the BACK UP fuse in the under-dash
fuse/relay box for more than l0 seconds. Drive the vehicle for several minutes at a speed over 30 mph(50 km/h). then recheck the DTC.
. Disconnecting the BACK UP fuse also cancels the radio anti-theft code, preset stations and the clock setting. Get the
customer's code number, and make note of the radio presets before removing the fuse so you can reset them.
SymptomInspectionR€f. page
E indicator light does not come on for two seconds after ignition is
first turned on (ll).14-42
E indicator light is on constantly (not blinking) wheneverthe ignition is on {ll).14-84
Lock-up clutch does not have duty operation (ON - OFF).Check A,/C signal with Ay'C
on.14-85Lock-up clutch does not engage.
Shift lever cannot be moved from E position with the brake pedal
oeDresseo.Check brake switch signal.14-86

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

Measure ATP D3 Voltrg.:1. Shift to all positions other than
E.2. Moasure the voltago botwg€nthe A8 and A13 or A26 termi-nals.
Chock for shori in the wirsbotwoon tho A8 torminal snd tfieA/T goai position switch or theA/T ge.r po.idon indicaioi, It wirois OX, ch6ck for loore TCM con-n€cto]s. lf n.ceacary, aub6tftrjt6 aknown.good TC.M .nd Jocicck.
ls there battery voltage?
Me.suro ATP2 Volt6go:1. Shilt to all positions otherthan
A.2. Measure the voltage betlveenthe A7 and A13 or A26 termi-nals.
Check fo? 3hort in tho wirebstwaon tha At torminal and thoA/T goar position switch or thoA/T ge.r po.ldon indlcltor. lf wirois OK. ch.ck for looso TCM con-noctors. lf nocoalary, lubctiiuto aknown-good TCM rnd rech.ck.
M6a.urc ATPI Voltagc:1. Shift to all positions other thantr.2. Measure the voltag€ betweonthe 46 and Al3 or 426 termi-nals,
Chock for 3holt in the wirob6two6n tho AO torminal and thoA/T gear po3ition .witch or thoA/T ger. po.ition indicator. I wir6is OK. ch.ck tor looso TCM con-nocto6. lf noca3srry, sub6titut6 aknown-good TCIVI .nd r.ch€ck.
ls there battery voltage?
Chack for looaa TCM connocioF.ll n6ce$ary, iubstitute a known-good TCM .nd rech.ck.
TCM CONNECIOR A {26P)
BRN/BLK
BFN/BLK
WIRE SIDE OF FEMALE TERMINALS
GRN/YEL
LT GRN/WHT
BRN/BLK
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
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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.
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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 Troubleshooting
Troubleshooting Flowchart - Barometric Pressure (BARO) Sensor
t\l,
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. OBD ll Scan Tool lndicatos Code
P1794.. Self-diagnosis El indicator
light indicatos Code 13.
Check BAROS S Wire ContinuitY:1. Turn the ignition switch OFF.
2. Disconnect the 22P connedortrom the ECM.3. Check for continuity betweenthe 82 terminal ot the TCM
connector and C21 terminal of
the ECM connector.
PGsible cau3€
' Short ot oDen in LT GRN wite
betwoen the 82 lcrminal and
ihe ECM. Faulty baromotric PrelsureIBAROI ignsolNOTE: Tho BAFO sensor is
built into the ECM.
VqJ
WIRE SIDE OF FEMALE TERMINALS
Measure VREF Volttge:1. Turn the ignition switch OFF.
2. Disconnect the A (26P) and B(22 P) connectors from the
TCM.3. Turn the ignition switch ON {ll}.
4. Measure the voltage between
the 820 and 413 or 426 termi-
nals,
Repair shon or oPen in the wite
betwcon the 820 tsrminal and
tho EcM.ls there approx.5 V?
Repair open in the wiro betwoon
the TcM and ECM.ls there continuity?
To page 14-75
14-74
V!

Troubleshooting Flowchart - Shaft Control System
NOTE: Do not continue with this troubleshootlng until the causesof any other DTCS have been corrected.
Chock foi Another Code:Check whether the OBD ll scantool indicates another code.
Psrtorm tho Tioubla3hootingFlowch.rt fo. th. indicatodCodcl.l.Rechsck tor code P0730 attoltroublolhooting.
Does the OBD ll scan toolindicate anothor code?
Tost 1st, 2nd, 3rd, and 4th ClutchProssuro:Measure the 1st,2nd,3rd, and4th clutch pressure (see page 14-
ls each clutch pressure withinthe service limit?R.p!ir lhG hydraulic ry3t.m ranac.3!.ry l3€e pago 1+991.
Roplace the Shilt ContiolSolonoid Valve A/B Assombly,thon Recheck:1. Turn the ignition switch OFFand reset the TCM memoryby removing the BACK UPfuse in the under-hood fuse/relay box for more than '10
seconds.2. Orive the vehicle at over 12mph (20 km/h) in lst,2nd,3rd, and 4th gear for morethan 30 seconds in E posi-tion.3, Recheck for code P730 (41).
Does the OBD llscan toolorthe E indicator light indicatecode P0730 (4'1)?Tho systom is OX etthi3 timo.
Poitible C.uBe
F""lty "hlft ".^t..t ",/"t".