1996 HONDA CIVIC 7P connector

Electrical Troubleshooting ('96 - 98 Modelsl
Troubleshooting Flowchart - Secondary Gear Shaft Speed Sensor
Po$ible Cause
. Disconnected secondary gealshaft speod sen3or connectol. Short ol open in s€condary gearshaft spe€d sen3or wiro. Faulty secondary gear shattspeed s€nsor
SECONDARY GEAR SHAFT SPEEDSENSOR 2P CONNECIOR
llll;ll
T_T
l@
tl
LJ
side of male terminalsTerminal
TCM CONNECTOR B {22P}
Wire side of female termanals
14-256
NOTE: Record all freeze data before you troubleshoot.
. OBD ll Scan Tool indicates CodeP1888.. Selt-diagnosis Iq indicator lightindicates Code 36.
Check the secondary gear shaftspeed sensor installation.
ls the secondary gear shaft speedsensor installed properly?
Measure Secondary Gear SheftSpeod Sensor R8istance at theSensor Connector:1. Disconnect the 2P connectorfrom the secondary gear shaftspeed sensor connector.2. Measure the resistance ol thesecondary gear shalt speed
ls the resistance 350 - 600 0?
Check Counterchaft Speed Son-sor for a Short Circuit:1. Disconnect the B 122P) connectorfrom the TCM.2. Check for continuity betweenbody ground and the 815 terminal and 816 terminal individually.
Repair short in the wir€6 bctuveenth. 815 and 816 torminrls.ndthe s€condary ge.r shaft speodls there continuity?
Measu.e Secondary Gear ShattSpeed Sensor Resistance:1. Connect the secondary gearshaft speed sensor 2P connec-
2. Meas u re the resistancebetween the 815 and 816 te.mrnals.
Reprir loose terminal or opcn inthe wires between the 815 and8'16 terminals and the secondaryg€ar shaft sp€ed s€nsor,
ls the resistance 350 600 O?
Check lor loose TCM connector.lf n€cessary, substitute a known-good TCM and recheck.
I2156910
12131a1516171820
WHT/RED T - ORN/BLU
D (o.
1a5678I10
1213141515171820
WHT/REI
A
I
ORN/BLU
L

Troubleshooting Flowchart - TMA and TMB Signals
NOTE: Record all freeze data before you troubleshoot'
Possible Cause
. Shorl or op.n in TMA wi.o
botwo6n 87 terminal and ECM. Short or open in TMB wiro
bdtwoon BG to.min.l .nd ECM. F.ulty ECM. Faulty TCM
TCM CONNECTOR B (22P)
GRY
Wire side oI temale terminals
o
I2a58910
1213111516171820
GRY
ECM CONNECTOR C 13lPI
123a56l89r0
1112t3la1618//
29130 /
::)
I2a568910
12t3141516171820
. OBD ll Scsn Tool indicate3 Codo
P1655.. Self-diagnosb E indicator light
indicales Cod6 37.
Check TMA Wire Continuity:1. Turn the ignition switch OFF.
2- Disconnect the I (22P) con-
nector lrom the TCM
3. Disconnect the c (31P) con'
nector from the ECM
4. Check for continuity between
the 87 terminal of the TCM
and the Cg terminal oI the
ECM,
Ropail open in the wire betwcen
the TCM and the ECM.
Check TMA Wir€ for a Short Cir-
cuit:Check for continuity between the
87 terminal of the TCM or the Cg
terminal ol the ECM and bodyground.
check rhe EcM:1. Reconnect the C (31P) con'
nector to lhe ECM, and the B(22P) connector to the TCM
2. Turn the ignition switch ON (ll).
3. Measure the voltage between
the C9 terminal oI the ECM
and body ground.
Chock tor loose ECM connectors.
lf nscossary, subdituta a known'good ECM .nd lecheck.ls there approx. 10 V?
To page 14 258
(cont'd)
14-257

Electrical Troubleshooting ('96 - 98 Models)
Troubleshooting Flowchart - TMA and TMB Sigrrals (cont,d)
TCM CONNECTOR 8 {22P}
Wire side of female terminals
PNK
PNK
PNK
from page 14 257
Check TMB Wire Continuity:1. Turn the ignirion switch OFF.2. Disconnect the C (31P) connec,tor from the ECM, and the I(22P) connector from the TCM.3. Check for continuity betweenthe 86 terminal ol the TCMand the C30 terminal of theECM,
Repair open in the wire betwe€nrhe TcM and the EcM.
Check TMB Wire tor a Short Cir-cuit:Check for continuity between the86 terminal ot the TCM or theC30 terminal ot the ECM andbody ground.
ls there continuity?
Check the TCM:1. Reconnect the B (22p) con-nector to the TCM, and the C(31P) connector to the ECM.2. Turn the ignition switch ON (ll).3. Measure the voltage betweenthe B6 terminat of the TCMand body ground.
ls there approx. S V?
Check for loose TCM connoctors.lf necessary, substitute e lnown-good TCM and recheck.
o
2I67t8I10
12131416171820
ECM CONNECTOR C 131P}
2a5678I10
ll1213la17118
/l/l )/)/l/l )aol'ol/
PNK
o
2456,8910
1213111516111E20
2157810
1213141516171820
It

Electrical Troubleshooting ('96 - 98 Models)
Troubleshooting Flowchart - Start Clutch Control System
NOTE: Record all freeze data before you troubleshoot.
Po$ible Ceuaa
Frulty start clutch cont.ol 3ys-tem
14-260
OBO ll Scan Tool indic.le3 Cod6P1891.Solt-diagnosis E indicator lightindicates Code (1.
Check for Another Codo:Check whether the @ indicatorlight indicates another code.
Poiform tho TroublcahootlngFlowchrrt lor the indicat.dCode(sl.
ls the E indicator light indi-cate another code?
Test Strrt Clutch Oper.tion:1. Turn the ignition switch OFF.2. Disconnect the 8P connectorfrom the solenoid harness con,nector.3. Start the engine, and shift toE position.4. Check whether the vehiclemoves.
Rcplaca th. strrt dudt r$amt ly.
Check Creeping Spe€d:1. Turn the ignition switch OFF.2. Reconnect the 8P connector tothe solenoid harness connec-tor,3. Start the engin6, and shift toE position.4. Check whether the vehiclecreeps, and chock the creep-Ing speed.
Does the vehicle move and isthe creeping speed approx.3mph (5 km/h)?
To page 14-261
E

Electrical Troubleshooting ('96 - 98 Modelsl
Troubleshooting Flowchart - Pl Indicator Light Does Not Gome On
TCM CONNECTOR A {26P)
BLI
l-I
123a589101t12nl
1a151617202325rt
o
8LK
Wire side of female terminals
The E Indicator light does notcome on when the ignition switchis tirst turned ON {ll). {lt shouldcome on for aboul two s€conds,)
Chock the Service Check Connec-lot:Make sure the special tool (SCS
Service Connector) is not connected to the seryice check connector,
ls the special tool (SCS ServiceConnector) connected to the ser-vice check connector?
Disconn€ct the sDecial tool fromthe seruice check connector andrecheck.
Check the E Indicator Light:Shift to [5] oosition.
Check fo. loose TCM connectors.lf neceasary, substitute a known-good TCM .nd rochock.
Does the E indicator lightcome on?
Ch€ck th6 Ground Circuit:1. Turn the ignition switch OFF.2. Disconnect the A 126P) con-nector from the TCM.3. Check tor continuity betweenthe A13 terminal and bodyground and the 426 terminaland body ground.
.Repair open in the wiresbetwoon lhe A13 or A26 termi-nel3 and G101.. Repai. poor ground {G1011.
To page 14-263
14-262
>.

Ftom page 14 262
ls there battery voltage?
Measure Powet SUPPIY Ci.cuit
Voltage:1. Turnthe ignition switch ON (ll)
2. Measure the voltage between
terminals A12 and A13 and
between terminals A25 and
426.
Repair open or short in the wire
between the A'12 andlor Ms ler-
minrls and the under-dash fuse
DOX,
Measure D IND Voltage:1. Turn the ignition switch OFF
2. connect the A (26P) connec
tor to the TcM.
3. Connect a digkal multitester
to the A20 and A'13 or A26 ter
minals.4. Turn the ignition switch ON (ll),
and make sure that the voltage
is available for two seconds.
Check tor opon in the wire
between the A20 l6rminal and
the gaug€ assembly. It the wite
is OK, check tor a faultY ipl indi-
calor light bulb or a faulty gauge
assembly prir ed circuit boatd.
Check D INO for an Shott Circuit:1. Turn the ignition switch OFF
2. Disconnect the A (26P) con-
nector from the TCM.
3. Check for continuity between
the A20 terminal and the No. I
terminal of the gauge assem-bly connector (see section 23).
Bepair open in the wire between
the A20 terminal and the gauge
assembly.
Check tor looso TCM connecto.s.
Check the A/T ge.r Positionswitch. lf nec6ssary, substitute a
known-good TCM and r€check
BLK/WHTI
r
2a710111213
14t5161720232526
BLK/WHT
A
II
TCM CONNECTOR A I26P)
Wire side of female terminals
TCM CONNECTOR A (25P}
BLK
BLK
GRN/BLK
12a58910111213
1l15161720232526
o
GRN/BLK
GAUGE ASSEMBLY14P CONNECTOR
a5
78910111214
GRN/BLK
Wire side of female terminals

Electrical Troubleshooting ('96 - 98 Modelsl
Troubleshooting Flowchart - lq Indicator Light On Constantly
TCM CONNECTOR A {26PI
Wire side of female terminals
YEL
The E indic.tor light is on con-stantly {not blinking} whoneverthe ignilion switch is ON llll.
Measure D INO Voltage:1. Turn the ignition switch OFF.2. Disconnect the A (26P) con'nector from the TCM.3. Turn the ignition switch ON (ll).4, Measure the voltage betweenthe A20 terminal and bodyground,
Repeir 3hort to power in thc wirebetween tho A20 terminal andihe gauge ass€mbly.
Measure ATP DVohage:1. Turn the ignition switch OFF.2. Connect the A (26P) connec-tor to the TCM.3. Turn the ignition switch ON (ll).4. Shift to any position other thanE,5. Measure the voltage betweenthe A9 terminal and bodygrou nd.
Check tor a short to ground onthe wire. ll wire is OK, .epl.cethe A/T gear position indic.tor.
2347810ll1213
1a15161720232526
GRN/BLK
123a5789101t1213
1at5161720a2526
14-264
-

Electrical Troubleshooting ('99 - 00 Models)
Troubleshooting Flowchart - A/T Gear Position Switch (Short)
NOTE: Record all freeze data before you troubleshoot.
Po3sible Cause
. Short in A/T gear po3ition 3witch
. F.ulty A/T ge6r Position switch
NOTE: Code P1705(5) is caused when
the PCM received two gear Positioninputs at the same time.
PCM CONNECTORS
LGl (BRN/8LKI LG2 (BRN/8LKI
Wire side of female terminals
(cont'd)
14-265
B t25Pt llO(16P1
. oBD ll scln lool indicats code
P't705.. Self-diagnosb E indicator light
blinks fivetim€s.
Obseive tho A/T Gear Polition
lndicetor:1. Turn the ignition switch ON (ll).
2. Observe the A,/T gear positaon
indicator, and shift oach Posi-tion separately.
Tho ry3t6m is OK at this tims.
Check th€ wiro hsrno!! tor
damage.
Does any indicator stay on
when the shift lever is not an
that position?
M.Furo ATP R Vohtge:1. Shift to all positions other than
E.2. Measure the voltage between
the D6 and 820 or 822 termi'
nals,
Chock for lhort in tho wit€
betwe€n the D6 telminal and thg
A/T ge.r position 3witch or A/T
gear po3ition indicttoi, !nd
chcck for open in the witgs
botwo€n the 820 lnd 822 tetmi_n.ls and body g.ound (G1011. F
wiro3 ere OK, check tor loo3o ter'
minal fit in the PrCM connoctors.ll n6c€3sary, 3ubstitute a known-good PCM and rochock.
ls there approx. 10 V?
To page 14 266