Main shaft speed sensor HONDA CIVIC 1998 6.G User Guide

Electrical Troubleshooting ('96 - 98 Modelsl
Troubleshooting Flowchart - Mainshaft Speed Sensor
NOTE: Record all freeze data before you troubleshoot.
Po$ible Cause
. Disconnect€d mainshaft sD€edSensor @nnoctot. Short or open in mainshattsJt€ed s6nsoa wire. Faulty mainshaft lpeed s6nso.
NOTE: Code P0715 (15) on the PCMdoesn't always mean there's an electricalproblem in the mainshaft or countershaftspeed sensor circuit; code P0715 (15)may also indicate a mechanical problemin the transmission.
MAINSHAFT SPEEOSENSOR CONNECTOR
Terminal side of male terminals
PCM CONNECTOR B I25PI
. OBD ll Scan Tool indicates Codem715.. Self-dirgnosi3 E indicatorlight indicstes Code 15.
Check the mainshaft and counter-shaft speed sensor installation.
Are the mainshaft and countershaftspeed sensor installed properly?
Moasure Mainshaft Spoed SgnsolRosistance at the Sensor Con-n€ctor:1. Disconnect the 2P connectorfrom the mainshaft speed sen-sor connector.2. Measure the resistance ot themainshaft speed sensor.
ls the resistance 400 600 O?
Check Mainshaft Sp6ed Sensorfor a Short Circuil:1. Disconnect the B {25P) connec'tor lrom the PCM.2. Check for continuity betweenbody ground and 815 terminaland the 814 terminal individu,
Repai. shon in the wi.os bstwoenthe 815 and 814 te.minals andthe mainshatt .Dood 3ensor.
ls there continuity?
To page 14-71
14-70
Wire side of female terminals

From page 14-70
Mea3uro Main3haft speed sensor
Resistance:1. Connect the ma;nshaft sPeed
sensol 2P connector,2. [/leasu re the resistancebetween the 815 and 814 ter_minals.
Run the Electical TrouH€.hootingFlowcirrt for cod. P0720 l9l.Check for loose P1CM connoctors.ll n€cesslrY, 3ubstitute a known'good PCM and racheck.
ls the resistance 400 - 600 O?
Check NM wire Continuityl1. Disconnect the 2P connectorfrom the mainshaft speed sen'
sor connector.2. Check for continuity between
the 815 terminal and the No. 1
terminal of the mainshaft
speed sensor connector.
Rgpsi. opon in thc wira bctwg€n
the 815 torminrl and th6.tain_shatt soeod lensoa,
Check NMSG Wire ContinuitYr
Check for continuity between the
814 terminal and the No.2 terminal of the mainshaft sp€ed sensorconnector,
Repair open in the wira botwGonthe 814 terminal and lhe main'shsft spo€d 3en3or.
Check for loo3o PCM connoctoB.ll neca$8ry, subditute a known-good PCM and rgchock.
PCM CONNECTOR B I25PI
Wire side oI female termlnals
MAINSHAFT SPEED SENSOR
CONNECTOR
14-71

Troubleshooting Flowchart - Mainshaft Speed Sensor
NOTE: Record all freeze data before you troubleshoot.
Possible Causg
. Diaconn€cted mainshaft spoed
sen3or connector'Short or open in mainshaft
sDeed sen3or wile. Faulty main3halt speed sensor
NOTE: Code P0715 (15) on the PCM doesn't
always mean there's an electrrcal problem in
the mainshaft or countershaft speed sensor
circuit; code P0715 {15) may also indicate a
mechanical problem in the transmissjon Any
problem causing irregular countershaft to
mainshalt speed difference can cause thls
code.
lll ,..TT
(ol-i-l
tl
side oI male terminals
MAINSI{AFT SPEEDSENSOR CONNECTOR
Terminal
PCM CONNECTOR D (16P)
NMSG (WHT)
Wire side of female terminals
(cont'd)
14-95
. OBD ll Scan Tool indicates Codem715.. Sell-diagno3is E indicator indi-
cates Code 15.
Check the mainshaft and counter-
shatt speed sensors installation,
and check them for damage.
Are the mainshaft and countershaft
speed sensor installed properly,
and not damaged?
Rsinalall or replace and rocheck.
Mea3u.e Meinshalt SPeod
Sensor Residance al the Sen3or
Connector:1. Disconnect the 2P connectorfrom the mainshaft sPeedsensor.2, Nreasure mainshaft speed sen_sor resistance at the sensorconnector.
ls the resistance 400 - 600 O?
Check Mainshaft Sp.ed Sen3o.
for a Short Circult:1. Disconnect the D (16P) con-nector trom the PCM.2. Check lor continuity betweenbody ground and the D11 ter'minal and D12 terminal indi
vidually.
Bopair 3hort in the wiros b€twe€nthe 011 and D12 termin.ls rndth€ main3hett sp€€d aensoa.ls there continuity?
To page 14 96

Electrical Troubleshooting ('gg - 00 Models)
Troubleshooting Flowchart - Mainshaft Speed Sensor (cont,dl
Wire side of female terminals
PCM CONNECTOR D {16PI
23/)
618
rghrll [e]
NM IREDI
(
I
NMSG {WHTI
(REDI
MAINSHAFT SPEEDSENSOR OONNECTORRED
Wire side of female terminals
NMSG IWHTI
From page l4-95
Measure Mainshatt SpeedSensor Resistance:1. Connect the mainshaft speedsensor connector.2. Measure the resistance bet-ween the Dl1 and D12 termi-nats.
Run the Electricel Troubl€shootingFlowchart lor cod6 m?m l9).Ch€ck lor loo.o te.minol fit in th6PCM connectors. lf necossary,substitute r known-good PCMend .echeck.
ls the resistance 400 - 600 0?
Check NM Wire Continuity:1. Disconnect the 2P connectorfrom the mainshaft speed sen-sor.2. Check for continuity betweenthe D11 terminal and the No. 2terminal ot the mainshaftspeed sensor connector,
Ropair opon in the wiro lratwoentho Dll tsrminal and tha main-3hatt spe€d sensor.
Check NMSG Wire Continuity:Check for continuity between theDl2 terminal and the No. 1 termi-nal of the mainshaft spoed sen-
Repai. open in the wire betwoenthe D12 terminal and the mein-shaft 3peod sansor.
Check Ior loose terminal fit in thePCM connectors. lf necesaary.substitute a known-good PCMand recheck.
1235
678
t1vNM
o
617 89ll12
Io
t1v
WHT
1
\
14-96

Mai nshaft/Cou ntershaft
Linear Solenoid AssemblySpeed Sensors
Replacement
1. Remove the mounting bolts and the linear solenoid
assemory.
Clean the mounting surfaceand flu id passages.
6x1.0mm12 N.m 11.2 kgl m,8.7 tbf.ftl
@
@
GASKET
Clean the mounting surface and fluid passage of the
linear solenoid assembly and transmission housing.
Install a new linear solenoid assembly with a new
gasl(et.
NOTE; Do not pinch the gasket when installing the
linear solenoid; make sure that the gasket is installedproperly in the mounting groove of the linear sole-
noid.
Check the linear solenoid connector for rust, dirt or
oil, and connect it securely,
LINEARSOLENOIDASSEMELY
I
14-108
Replacement
't.
6x128.7
Remove the 6 mm bolt and the countershaft speed
sensor from the right side cover.
COUNTERSI{AFTSPEED SENSOR
O.RINGReplace.
MAINSHAFTSPEEDSENSOR
MAINSHAFT SPEEDSENSOB WAS}IER(D16Y7 enginel
6x1.0mm12 N.m (1.2 kgf m,8.7 tbf.ft)
1.0 mmN.m (1.2 kgf.m,rbf ft)
\\
/,
%/E:)
Remove the 6 mm bolt and the mainshaft sDeed
sensor from the transmission housino.
Replace the O-ring with a new one before installing
the countershaft speed sensor or th€ mainshaft speed
sensor.
NOTE: Installthe mainshaft speed sensor washer on
the mainshaft speed sensor. The mainshaft speed
sensor washer is used on models with the D'|6Y7
engine.

6. Remove the transmission housing mounting bolts
and the rear engine mounting bolt.
Disconnect the shift control solenoid, the linear sole-
noid, and the mainshaft speed sensor connectors'7.
SHIFT CONTROLSOLENOID CONNECTORLINEAR SOLENOIDCONNECTOR
MOUNTING BOLTS
BRACKET
8. Remove the drain plug, and drain the automatic
transmission fluid (ATF). Reinstall the drain plug
with a new sealing washer.
DRAIN PLUG18 x 1.5 mm'9 N m t5 o kgf'm' 36 lbf'ft|
9. Remove the splash shield.
Replace.
SPLASH SHIELD
{cont'd)
14-123

O ROLLER
O COLLAR
O o-RING Replace.
@ FEED PIPE FLANGE
@ O-RING Replace.
@ SNAP RING
€) 3RD CLUTCH FEED PIPE
€) COUNTERSHAFT LOCKNUT (FLANGE NUT)
23 x 1.25 mm Replace.
o coNlcAL SPRING WASHER Replace.
@ PARK GEAR
@ ONE.WAY CLUTCH
@ COUNTERSHAFT lST GEAR
@ NEEDLE BEARING
@ COUNTERSHAFT lST GEAR COLLAR
@ o-RlNGs Replace.
@ END covER GASKET Replace.
E) DOWEL PINS
@ PARK PAWL STOP
@ LocK WASHER Replace.
@ PARK STOP Selective part
€D PARK LEVER
@ PARK LEVER SPRING
€D DRAIN PLUG
€) SEALING WASHER Replace
@ o-RING Replace.
@ COUNTERSHAFT SPEED SENSOR
@) PARK PAWL
@ PARK PAWL SPRING
@ PARK PAWL SHAFT
@ LINEAR SOLENOID ASSEMBLY
@ LINEAR SOLENOID GASKET REPIACE.
@) END COVER
@ lsT CLUTCH FEED PIPE
@ O-RINGS Replace.
@ FEED PIPE FLANGE
C) SNAP BING
@ MAINSHAFT LOCKNUT (FLANGE NUTI 21 x 1 25 mm
Replace.
@ CONICAL SPRING WASHER RePlace
@) lST CLUTCH ASSEMBLY
@ o-RlNGs Replace.
€) THRUST WASHER
@) THRUST NEEDLE BEARING
@ NEEDLE BEARING
@ MAINSHAFT lST GEAR
@ MAINSHAFT lST GEAR COLLAR
@) ATF COOLER LINE
@ SEAUNG WASHERS Replace.
@ LINE BOLT
@ ATF DIFSTICK
@ ATF COOLER LINE
@ UNE BOLT
@ SEALING WASHERS Replace.
@ VEHICTT SPEED SENSOR
@ O-RING Replace.
TOROUE SPECIFICATIONS
Bolt/Nut No.Torque ValueSizeRemarks
6B
8F
12A.'l8D
2'tM
23C
'12 N'm (1.2 kgim,8.7 lbift)
14 N.m (1.4 kgf.m, 10 lbf'ft)
22 N.m (2.2 kgf.m, 16 lbf'ft)
28 N.m (2.9 kgf.m, 21 lbf'ft)
49 N.m (5.0 kgf.m, 36 lbf'ft)
78 N.m (8.0 kgf'm, 58 lbf'ft)
103 N.m {10.5 kgf'm,75.9 lbift)
6x1.0mm
6x1.0mm
8 x 1,25 mm
12 x 1.25 mm
18 x 1.5 mm
21 x 1.25 mm
23 x 1.25 mm
Line bolt
Drain plug
Mainshatt locknut: Left-hand threads
Countershaft locknut:
Left-hand threads
14-127

O LocK WASHER Replace,
O REVERSE SHIFT FORK
O COUNTERSHAFT REVERSE GEAR COLLAR
G) COUNTERSHAFT REVERSE GEAR
@ NEEDLE BEARING
@ REVERSE SELECTOR
O REVERSE SELECTOR HUB
@ COUNTERSHAFT 4TH GEAR
O NEEDLE BEARING
@ DISTANCE GOLLAR, 28 mm Selective part
O COUNTERSHAFT 2ND GEAR
@ THRUST NEEDIE BEARING
@ COUNTERSHAFT 3RD GEAR
@ NEEDLE BEARING
@ COUNTEBSHAFT 3RD GEAR COLLAR
@ THRUST NEEDLE BEAFING
O SPLINED WASHER
@ 3RD CLUTCH ASSEMBLY
@ O-RtNGs Replace.
@ COUNTERSHAFT
@ SNAP RING
@ THRUST WASHER
€) THRUST NEEDTE BEARING
@} MATNSHAFT 4TH GEAR/REVERSE GEAR
@i NEEDLE BEARINGS
@ THRUST NEEDLE EEARING
@) MAINSHAFT 4TH GEAR COLLAR
@ 2ND/4TH CLUTCH ASSEMBLY
@ o-RlNGs Replace.
@ THRUST WASHER,36.5 x 55 mm Sel€ctive part
@ THRUST NEEDLE BEARING
@ MAINSHAFT zND GEAR
@ NEEDLE BEARING
@ THRUST NEEDLE BEARING
@ MAINSHAFI
@ S€ALING RINGS, 35 mm
@ SEALING RING,29 mm
@} NEEDIE BEARING
@ SET RING
@ sHrFT CONTROL SOLENOID VALVE A/B ASSEMSLY
@ HARNESS CLAMP BRACKET
@ SHIFT COI,ITROL SOI"ENOID FILTER/GASKET Replace.
@ CONNECTOR BFACKET
@D TNANSMISSION HANGER
@ BREATHER CAP
@ MAINSHAFT SPEED SENSOR
@ MATNSHAFT SPEED SENSOR WASHER {Dl6Y' ongine}
@ O-RING Replace.
@ SNAP RING
@ MAINSHAFT TRANSMISSION HOUSING BEARING
@ OOUNIERSHAFT TRANSMISSION HOUSING BEARING
@ REVERSE IDLER GEAR SHAFT HOLDER ASSEMBLY
@ NEEDI.E BEARING
@ olL SEAL Replace.
@ SET RING, fll mm Selective part
@ rnANsMrssloN HouslNG
@ REVERSE IDI."ER GEAR
@ DowEL PINS
@ TRANSMISSION HOUSING GASKET Replace.
@ DIFFERENfIAL ASSEMBLY
@ OIL SEAL Replace.
@ TOROUE CONVERTER HOUSING
TOROUE SPECIFICANONS
Boh/Nut No.Torquo valueSizeRomarks
6B
10A
12 N.m {1.2 kgf.m,8.7 lbf.ft)
14 N.m (1.4 kgf'm, 10lbf'ft)
44 N.m (4.5 kgf.m, 33 lbf'ft)
6x1.0mm
6x1.0mm
10 x 1.25 mm
14-129

Transmission Housing
Removal
MAINSHAFT
TRANSMISSION HOUSINGMOUNTING BOLTS18 Bolts
TRANSMISSIONHANGERTRANSMISSION HOUSING
MAINSHAFTSUB.ASSEMBLY
SENSOR WASHERlD16Y7 engine)
MAINSHAFTSPEED SENSOR
TRANSMISSIONHOUSING GASKETDIFFEBENTIALASSEMBLY
TOROUE CONVERTERHOUSING
SUB.ASSEMBLY
L,
14-134

Transmission
_\,]ffil
Reassembly (cont'd)
TRANSMISSIONHANGER
MAINSHAFTSUB.ASSEMBLY
*''
Ufln
$*U ./
TRANSMISSION HOUSINGMOUNTING BOLTS10 x 1.25 mm4{ N.m {4.5 kg{.m,33 lbI.ft)
TRANSMISSION HOUSING
REVERSE GEARCOLLAR
REVERSE GEAR
LOCK WASHER
SHIFT FORK
MAINSHAFT SPEEDSENSOR WASHER(D16Y7 engine)
MAINSHAFT
COUNTERSHAFTSUB.ASSEMBLY
OIFFER€NTIALASSEMBLY
SPEED
TRANSMISSIONHOUSING GASKET
TOROUE CONVERTERHOUSING
14-178