2000 HONDA CIVIC Ground

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 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
>.

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 (Openl (cont'dl
Bepair opon in the wiro bgtw€enlho A22 torminal and the A/Tgoar poihion lwitch.
PCM CONNECTORS
B (25P1
LGT (BFN/ALK}
PCM CONNECTOR B I25PI
12.15 / 7I
9't0l1Br1/l/41it8
ll lLG2
o) (o)
IBRN/BLKI
Wire side of female terminals
From page 14-8-269
Msasuro ATP L Voftage:1. Shiftto E position.
2. Measure the voltage betweenthe A22 and 820 or 822 termi-nals,
Check LG Wiro for .n Open Cir-cuit:'] Turn the ignition switch OFF.2. Check lor continuity betweenthe 820 t€rminal and bodyground, and between the 822terminal and body ground.
Ropai' op.n in the wir€a botw.€nthe 820 rnd 822 toJminals .ndbody ground, and .opsi. poolground (Gl01l.
Check tor loose te.minal frt in th6PCM conn€ctors, lf n€cessary, sub-stitut€ a knowo-good PCM anda6check,
Wire side of female terminals
14-270

JTroubleshooting Flowchart - Shift Control Linear Solenoid
NOTE: Record all freeze data before you troubleshoot
Possiblc Cause
. Disconn€cted solenoid harnos3
connectol. Short or oDen in shilt controllinetr solonoid wiro. Faulty shift control linear sole_
noid. Op€n in VB SOL wite. ODen in PG'l and PG2 wires or
poor ground {G10'l)
f,
wire side ot female terminals
LG1 IBRN/BLKILG2IBRN/BLK)
{cont'd)
14-271
PCM CONNECTORS
B(25P) - Dll6P)
.OBD ll Scan Tool indicatos
Code P1870.. Solf-diagnosis E indic.lor light
indic.t€s Code 30.
M6a3ure VB SOL voltage:1. Turn the ignition switch OFF.
2. Disconnect the B 125P) and D(16P) connectors from the
PCM,3. Turn the ignition switch ON (ll).
4. Measure the voltage between
the D5 and 820 or 822 terminals.
Repair open or shod in the wire
between the D5 terminal and the
under-dash tuso/telay box.
Check the Ground Circuitl1. Turn the ignition switch OFF.2. Check lor continuity between
the terminafs 82 and 822 and
between terminals 810 and
820.
Repair open in the wi.e betwoen
the termin.ls 82, B10, B20, and
822 and G101. Repair Poolground (G101).
LG1 IBRN/BLKI
PCM CONNECTOR B PsPI
PG,I IBLK)
10 page 14-272
a

ElectricalTroubleshooting ('99 - 00 Models)
Troubleshooting Flowchart - Shift Gontrol Linear Solenoid (cont'dl
SOI."ENOID HARNESS 8P CONNECTOR
Terminal side of male terminals
PCM CONNECTOR D {16P}
SH LSM IGRN/YELI SH LSP {BLU/WHTI
Wire side oI temale terminals
SH LSM {GRN/YELI SH LSP IALU/WHT}
tuom page 14 271
Measure Shift Control LinearSolenoid R6sistance at the Sole-noid Hrrness Connector:1. Disconnect the solenoid harness 8P connector.2. Measure the resistancebetween the No. 3 and No- 7terminals oI the solenoid harness 8P connector,
ls the resistance 3.8 - 6.8 o?
Check Shift Control Lin€ar Sole-noid tor a Short Circuit:Check for continuity between thebody ground and the D3 terminaland D4 terminal individually.
Rep.ir short in th€ wir€ tr€twlrenihe D3 and D4 torminab .nd theshift cont.ol line.. solenoid.
Measure Shitt Conirol LineerSolenoid Resbtance:1. Connect the solenoid harness8P connector.2. Measure the resistancebetween the D3 and D4 termi-nats.
Repeir loose ierminrl or open inthe wire3 between tho D3 and D4terminals end the shift controllinear solenoid.
ls the resistance 3.8 - 6.8 O?
Check tor loose terminal fit in thePCM connector3, It necessary,substitute a known-good PCMand recheck.
SH LSP
SH LSM
14-272