ACURA INTEGRA 1994 Service Repair Manual

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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{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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oooooooooooMeasure the resistance betweenthe A5 and 425 or 426 terminals.
ls the resistance 14-16 0?
NO
3P CONNECTORView from terminal side.
SHIFT CONTROLSOLENOID VALVEASSEMBLY
(cont'd)
Chock lor loora TCM connectoE.lf n6c€53ary, sub3titut6 a known-good solonoid valvo assembly orTCM and r6check.
Disconnect the 3P connector tromthe shift control solenoid valve as-sembly.
Check for continuitv between theA5 and A25 or 426 torminals.
Ropair shon to ground in BLUI'ELwir6 botwoon tho A5 tstminal andtho shift conlrol solonoid valvo A.
Measure lhe resistance of thesolenoid at lhe 3P connector.
Check fo. opon in BLU/YEL wirobolween th6 A5 torminal and thoshift control solenoid valve A.
ls the resistance '14-16 0?
14-63

Electrical Troubleshooting
Troubleshooting Flowchart (cont'dl
Possible Cau6e
. Disconnected shift control sole-noid valve B connector. Short or open in shift controlsolenoid valve B wire. Faulty shilt control solenoidvalve B
Solfdiagnolir [!4 Indicato. lightbllnk! eight tim6r.
Turn the ignition switch ON.
Check whother the MalfunctionIndicator Lamp {MlL) blinks (seesection I 11.
Rcpsir rho FGM-FI Syrtem lso6scciion l1l.ls the MIL blinking?
Turn the ignition swirch OFF.
Oisconn€ct the 26P and 22P con-nectors trom the TCM.Connect the Test Harness "A"
and "D" connectors to the wirohamess only. not to the TCM {sesp6ge 14-49).
Turn the ignition switch ON.
Measure the voltage betwe€n theD18 and A25 or A26 terminals.
Ropeir opon or short in WHT/BLKwiro trotweon th6 D18 termineland tho EcM.
ls the voltage 4.75-5.25 V?
Measure the voltage between th€A3 and A25 or A26 terminals.
Ropair rhort to powor rourco inGR /WHT wir6 b€twgan tho A3tormirEl and shift conLol lolonoidvalve B.
Turn the ignition switch OFF.
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To page

Measure the resistance betweenthe A3 and A25 or A26 terminals.
Chod. lor looro TCM connoctoB.lf nocdaary. 3ubatltute a known-good rolonold valv6 6ra6|nbly otTCM snd recheck.
ls the resistance I +16 07
Disconn€ct th6 3P conngctor fromthe shift control solenoid valveassembly.
Check for continuity between theA3 and A25 or A26 terminals.
Ropair short to ground in GRt{/WHT wiro botwoon th6 A3 tormi-nrl and tho shitt control aolonoidvalve B.
Measure the resistance ot thesolenoid at the 3P connector.
Chock to. open in GRN/WHT wirob6twe.n th€ A3 lerminal and thoshifl control solonoid valvo B.ls the r€sistance 14- 16 O?
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Roplace lhe rhift control solenoidvalve arr€mblv.
SHIFT CONTROLSOLENOID VALVEASSEMELY
(cont'd)
14-65

Electrical Troubleshooting
Troubleshooting Flowchart {cont'dl
ls the countershaft speedsensor installed properly
2P CONNECTOR
COUNTERSHAFTSPEED SENSOR
Possible Cause
. Loose or faulty connection be-rween the TCM and car harness.. Disconnected countershaft speedsensor connector. Short or open in the counter-shatt speed sensor wire. Faulty counlershaft speed sensor
Self-diagnosis Lq! indicator lighrblinks nino timos.
Disconnect the 2P conneclor lromthe countershaft speed sensorconnector,
Measure the resistance ot theco!ntershaft speed sensor.
ls the resistance 4OO 600 0?
To page 14-67
14-66

Disconnoct the 22P connectortrom the TCM. Connecr tho T€stHarness "D" connector to thewhe harness onlv, not to the TCMlsee page '14-49).
Check for continuitv betweenbody ground and 017 terminaland D15 terminsl individually.
Rgpllr short in BLU/GRI{ otBLU|/EL wlro b€twgon Dl7 andDl5 torminsla and ths countar-rhaft apo€d sengor.
Reconnect the countershaftsDe00 sensor connector.
Msasure the rgsistance betweenD 1 7 and 015 terminals.
Rgpair looa6 ta.minsl or opon in8LU/GRN o. 8LU/YEL wiro bo-trvaon D'17 and D15 tormindgand tho count6rlhafl !p6gd!€ntor,
ls the r€sistance 4OO-600 07
Ch6ck for looaa TCM conn6cto..ll nocaslrry, aubrlitut6 a known-good TCM a.d .6ch.ck.
(cont'd)
4-67

Electrical Troubleshooting
Troubleshooting Flowchart (cont'dl
Possibl€ Caus6
. Disconnoct€d engine coolantt€mp€rature (ECTI sensor con-noctor. Short or open in the ECT sensor
. Faulty ECT s€nsor
Self-diagnosis E indicator lightblinks ten times.
Turn the ignition switch ON.
Check whether the MalfunctionIndicator Lamp {MlL} blinks (seesection 1 1)-
ls the MIL blinking?Rop.ir tho PGM-FI Syrt.m (!go
!.ction 111.
Turn the ignition switch OFF.
Disconnectthe 26P and 22P con-nectors trom the TCM.Connect the Test Harness "A"
and "D" conneclors to the wireharness only, not to the TCM (seepage 14 49).
Measure the voltage between theD'18 and A25 or A26 lorminals.
Bopair op.n or .hofi In WHT/BLKwiro botwoon tho O18 tanni.|al.nd the ECM.ls the voltage 4.75-5.25 V?
Turn the ignition switch OFF.
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