1994 HONDA INTEGRA connector

Measure the resistance betweenthe A4 and A25 or A26 terminals.
Check for looso TCM connocto.s.lf nocoasary, substitute a known-good solenoid valvo assombly otTCM and rochock.
is the resistance 14- 16 0?
Disconnect the 2P connector fromthe lock-up control solenoid valveassemory,
Check lor continuitv between theA4 and A25 or A26 terminals.
Ropair 3horl to Itound in GRN/BLK wir6 botwoon tho 44 totmi-nal and th6 lock-up cont.ol solo-noid valv6 B.
Measure the resistance ol thesolenoid at the 2P connector.
Chock lor opon in GRN/BLK wiiobotwaen tho A4 torminal and th6lock-up contrcl solonoid valvo B.ls the resistance 14- 16 07
R6Dlaco tho lock-up conttol 3016-noid valvs assembly.
2P CONNECTORView trom terminal side.
q
.UP CONTROLSOLENOID VALVEASSEMBLY
(cont'd)
14-55

Troubleshooting Flowchart (cont'd)
Sof{irgnolis D! indic€tor tightblinks throo rim6s.
Turn the ignition switch ON.
Check whother the MalfunctionIndicator Lamp (MlL) blinks (seesection 1 1).
Replir thc PGM-FI Syrtom l.s.!.ction 111.ls the MIL blinking?
Turn the ignition switch OFF.
Oisconnect rho 26P 6nd 22P con-nectors lrom the TCM.Connect the Test Harness "A"
and "D" connectors to the wireharness only, not to the TCM lseepage |4-491.
Turn the ignition switch ON.
Measure the voltage between theDl8 and A25 or A26 teiminats.
Rcpalr opon or shon In WHT/BLK wlr. botw.cn th. D18 t.mi-nsl rnd th. ECM.
ls the voltage 4.75-5.25 V?
Turn the ignirion swirch OFF.
Connect the Test Harness "A"
and "D" connectors to the TCM.
Turn the ignition switch ON.
Measure the voltage betwe€n theD7 and A25 or 426 rerminals.
Roprlr oprn o. lhon in RED/BLKwil. botwaan tha DT ta]minal andtha TP ranaor.
ls the voltage 0.4-0.6 V?
Chock tor looro TCM connoctora.ll noce$rry, subatitulo r known-good TCM and rechock.
Possible Cause
. Disconnocted throttle position{TP) sensoa connoctor. Short or oDen in TP s€nsor wire. Faulty TP senaor

S. d.gno.b lql indic.to. lightbllnkr tour tlm...
R.lor to Soctlon 23 for vohiclerpood lonsoi {vSSl to!t.
Shift t.nsmisiion to A position.
Ch6ck to. shoft or opon in OFilwlro b€twoen tho .)9 t6tminsl andrho VSS. lf wiro is OK, ch€ck thoVSS lsoo soction 231.
Doss lhe voltage O V and ap-p.ox. 10 V appe.r alternately?
Ch.d( tor loo.. TCM co.!n.cto.r.ll nacaaalay, lubrtituta ! known_geod TCM and t chock.
Possible Caus6
. Disconnectsd vehicle speedsensor {VSS} connector. Short or open in VSS wire. Faulty VSS
Disconn6ct the 26Pand 22P con-n.ctors trom th€ TCM.Connect ths Tgst Harnoas "A"
8nd "O" connectors to tho wireharnsss only, not to the TCM (see
page 1+49).
Turn the ignilion switch ON.
a Mak€ sure lifts,lacks, and safety stands aro placod plopor-
ly {see Eaclion 1}.
a S6t th6 parking brake eecurely and block tho tear wh6ol3'
a Jack up tho f.ont ot tho car and rupport whh sstoty standa.
(cont'd)
Rotat€ th€ tront wh6ol and chsckfo. volt6g€ botwean the D9 andA25 o. A26 terminals. Block theother whaol 30 it do€s not turn.
14-57

Electrical Troubleshooting
Troubleshooting Flowchart lcont'dl
Possible Cause
'Short in A/T gear posilionswitch wire. Faulty A/T gear position switch
NOTE: Code 5 is caused whenthe TCM receives two gear po-sition inputs at the same time.
Or425 t- |
-l@r
A19l+) A25 (-)
YES
14,59
Solt-diagno8is l!4 indicato. tightblinks fiv6 timos.
Turn the ignition switch ON.
Observe the A/T gear position in-dicator, and select each positionseparately.
Do any indicators stay onwhen the selector lever isnot in that position?
The systom is OK ai this timo.Ch.ck tho wiro ha|noss toroamago.
Turn the ignition switch OFF.
Connect the Test Harness be,tween the TCM and connectors{see page 14-49}.
Turn the rgnition switch ON.
Shilt to other than E position.
Measure the voltage b€tween theA21 and A25 or 426 terminats.
Chock for short in GRN/RED wi.o botwoon tho A2t torminaland th6 A/T goar po6ition swirch or A/T 96ar posirion indi-cator. lf wire is OK, chock for loo8o TCM connocioF. lfnecassary, subatituto a known-good TCM and rochsck.
Measure the voltage between the419 and A25 or 426 terminals.
Ch6ck for 6hon in LT GRN/BLK wi.e borwoon tho A19 tor-minal and tho A/T goar position indicato., o. a shon inGRN/WHT or GRN wiros botwson tho A/T goa. position in-dicato. and tho A/T goa. position swhch. ll wire is OK. chockfor looso TCM connactoE. lf nocos$sry, substituto a known-good TCM and .ech6ck,
ls the battery voltage?
14-58
To page

14-58
Measure the voltage between theAl l and 425 ot 426 tetminals.
ls thgre battery voltage?
YES
shift ro other than E posirion.
Measure the voltage belween lheA17 and A25 or A26 terminals.
Chock to. short in PNK/GRN wire betwoon tho Al7 torminal andth6 A/T gsar position switch. It wire is OK, chsck for looso TCMconnoctors. lf nocessary, substitute a known-good TCM androch€ck.
ls there battery voltage?
Shifi to other than E] position.
Measure the voltage between theA15 and A25 or 426 terminals.
Chock for short in GRN/BLU wire betweon the A15 terminal andthe A/T gosr position switch or A/T g€a. position indicato.. ll wirois OK, chock for loose TCM connectors. ll nocessary, substitulsa known-good TCM and rochock.
ls there battery voltage?
Shilt to other than E position.
Measure the voltage between theA13 and A25 or 426 terminals.
Chock for short in GRN/YEL wire betweon ths A13 torminal andthe A/T gear position switch or A/T gear posilion indicator. l{ wirois OK, check lor loose TCM connectors. lI necessarv, substitutaa known-good TCM and rechsck.
ls there battery voltage?
Shift to other rhan I oosirion.
Chock tor shon in LT GRN/WHT wi.e b€twoan th6 A1'l lerminaland the A/T gear position switch or A/T gear position indicator.lf wira b OK, ch6ck foi loose TCM conneclors. lf noc€ssary, sub-stituto a known-good TCM and rocheck.
Chock for looso TCM conn€ctors.lf noce$ary, substitute a known-good TCM and recheck.
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ll
{cont'd)
14-59

Electrical Troubleshooting
Troubleshooting Flowchart {cont'dl
ls there voltage?
ls there voltage?
NO
To page l4-61
- - r9ta21(+ I A25{-)
Self-diagnosis E indicator lightblinka six timos.
Connect the Test Harness be,tween the TCM and connectors(see page '14-49).
Turn the ignition switch ON.
Measure the voltage between theA21 and 425 or 426 terminals.
Ropair open in GRN/RED wire be,tweon th6 A21 terminal and theA/T gssr position switch.
Shilt ro N or E position.
Measure the voltage between theA19 and A25 or A26 terminals.
Ropair open in LT GRN/BLK wireb€tw6on the 419 torminal and th€A/T gear position indicato..
Possible Cause
. Disconnected A/T gear positionswrtcn connector' Open in A/T gear position switch
. Faulty A/T gear position switch
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14-60

Measure the voltage between theA17 and 425 or A26 terminals.
Roprir opon in PNK/GRN wire botwoonthe A17 torminal and rh6 A/T goar posi-
tion switch.
Measure thevoltage between theA15 and A25 or A26 terminals.
Ropair open in GRN/BLU wir6 bolwoenthe A15 r6.minal and tho A/T goar posi-
tion switch.
Measure the voltage between theA13 and A25 or A26 terminals.
ReDair open in GRN/YEL wito botw€onthe Al3 torminaland th€ A/T goar posi-
lion switch.
Measure the voltage between theA11 and A25 or A26 terminals.
Ropaii opon in LT GRN/WIIT wiro bo-tw€en the A 1 1 te.minal and tho A/T goar
oosition switch.
Check lor loos€ TCM connectors.It necossaty, substituto a known_good TCM and r6ch6ck.
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voltage?
voltage?
All(+ I
voltageT
(cont'dl
14-61

Electrical Troubleshooting
S€ltdiagno3b Lql indicaror lighrblinks sovon timgs.
Turn the ignition switch ON.
Check whether the MalfunctionIndicator Lamp {MlL) blinks (seesection 11).
Ropai lhe PGM-FI Sysrem (so€Bection 1 11,ls the MIL blinking?
Turn th6 ignition switch OFF.
Disconnect the 26P and22P con-nectors from the TCM.Connect the Test Harness "A"
and "D" connectors to the wireharness only not to the TCM (seepage 14-49).
Turn the ignition switch ON.
Measure the voltage betw€€n theD18 and A25 or A26 lerminals.
Repair opon o. sho.t in WHT/BLKwire botwoon th€ D18 tarminaland the ECM.
fs the voftage 4.75-5.25 V?
Measure the voltage between theA5 and A25 or A26 terminals.
Ropair lhon to powor sourc6 inBLU/YEL wiro botwoon the A5torminal and th6 lhift control solo-noid valve A.
Turn the ignition switch OFF.
Troubleshooting Flowchart (cont'dl
Dl8( r I
Possible Cause
. Discohnected shift control sole-noid valve A connector. Short or open in shift controlsolenoid valve A wire. Faulty shill control solenoid
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