1997 HONDA CIVIC Shaft

tCrankshaft Speed Fluctuation (CKF) Sensor -
('99 - 00 Mociels except D16Y5 engine with M/T)
The scan tool indicates Diagnostic Trouble code (DTC) P1336: Intermittent interruption in the crankshaft speed
Fluctuation (CKF) sensor circuit
The scan tool indicates Diagnostic Trouble Code (DTC) P1337: No signal in the Crankshaft Speed Fluctuation (CKF)
sensor circuat,
Description
Thediagnosticsystemhasapulserrotoronthecrankshaftandapu|sepick-upsensorontheengineb|ock.TheEcM/PcM
monitors the crankshaft speed fluctuation based on the cKF sensor signal. and judges that an engine misfire occurred if
the fluctuation goes beyond a predetermined limit'
I
Ftu6l
tF13g7l
CKF SENSOR 3P CONNECTOR
r--r t|-.r-r'--]llll l2l3ll.l---'.-T_
CKFM I I CKFP
twHTl |/Ai i lBlul--\9-
Terminal side oI male terminals
CKF M(WHT)CKF P(BLU)
t(cont'd)
1 1-185
- The MIL has b€on reportad on.- DTC P1336 and/or P1337 are
stored.
Problem verification:1. Do the ECM/PCM Reset Proce'
dure.2. Start the enginelntermittcnt failuro, sydcm is OK
ai this time. Check lot Poor con_
noctions or loo3e wiros at C102
ICKF s€nsor) and ECM/FCM, and
make suro CKF sansor mounting
bolt b tight.
Check tor an open in the CKF sen_
1. Turn the ignition switch OFF
2. Disconnect the CKF sensor 3P
3. Measure the resistance
between the CKF sensor 3P
connector terminals No. 1 and
No.3.
ls there 1.6 3.2 kO?
Check for a short in ihe CKF sen_
sot:Check for continuity betweenbody ground and the CKF sensor
3P connector terminals No 1 and
No.3 individuallY.
(To page 11-186)

PGM-FI System
Crankshaft Speed Fluctuation (GKFI Sensor('99 - 00 Models except D16YS engine with M/Tl (cont,d)I\
ECM/PCM CONNECTOR C 13lPI
Wire side of femaleterminals
aI
(Frorn page l1-185)
Check Ior an opsn in the wires(CKF lines):1. Reconnect the CKF sensor 3pconnector.2. Disconnect the ECM/PCM con-nector C {31P}.3. Measure resistance betw€enECM/PCM connector termi-nals C22 and C31.
Repair opqn in th. wire bo{weenECM/PCM (CZ, Ctll and th. CKFlon30r.
ls there 1.6-3.2 k0?
Check tor a short in the wireICKF line):Check for contin!ity betweenbody ground and ECM/PCM con-nector terminal C22.
Roplir thort in tho wirg b.iwoonECM/FC'ftl lc22l and tho CKF 3€n-
Substituto a known-good ECM/PCM, and r.ch.ck. It symptom/indication 90o. aw!y, 6pbco theoriginal ECM/PCM.
1 1-186

l,a
Crankshaft Position/Top Dead Center/Cylinder Position (CKP/TDC/CYPI Sensor
Thescantoo|indicatesDiagnosticTroub|ecode(DTc)P1359:Aprob|eminthecrankshaftPosjtion/TopDead
Center/Cvlinder Position (CKP/TDC/CYP) sensor circuit'
- The MIL has been reported on- DTC P1359 is stored
Problem veritication:1. Do the ECM Reset Procedure
2. Stan the engine lftheengine
won't start, crank it for at least
10 seconds-
lntermittent failure, sYstem is OK
Check for poor connecllon3 or
loose wires at C120 {distributor}and ECM,/PCM.
ls DTC P1359 indicated?
Check for poor connections or
loose wires between the distribu
tor and the ECM/PCM
Substitute a known'good ECM/
PCM, and rccheck. lt 3ymPtom/
indication goes awtY, rePlace
the original ECM/PCM.
r ta
11-1A7

ldle Control System
ldle Air Control (lAC) Valve ('96 - 98 A/T and Dl6Y7 enginel
The (Rotary) IAC Valve changes the amount of air bypassing the throttle body in response to a current signal from theECM/PCM in order to maintain the proper idle speed,
BIMETAL
VALVESTOPPER
1P1509 Thescantool indicates Diagnostic Trouble Code (DTC) P1509: A problem in the idle Air Control (tAC)valve circuit.
ECM/PCM CONNECTOR A I32PIPGl IBLKI
IAC VALVE 3P CONNECIOR
IACV NIACV P
IGP
Terminal side of maleterminals
*: IACV N line
1 1-198
The MIL has b€€n roported on.DTC P1509 is stored.
Problem verification:1. Do the ECM/PCM Reset Proce-oure.2. Turn the ignition switch ON (ll).
Intermittent failura, systom ia OKat this time. Check tor poo. con-noctions or loose wires at C109llAC valve) and ECM/PCM.
ls DTC P1509 indicated?
Check for an opon in the wirer{PG lines):Measure voltage between bodvground and ECM/PCII connectorterminals A10 and A23 individu
Repair op€n in the wires betwoenECM/PCM and G101 llocated attho thermostat housing).
ls there more than 1.0 V?
Chock th€ ECM/PCM inpui volt-agel1. Turn the ignition switch OFF.2. Disconnect ECM/PCM connec-tor A (32P)from the ECM/PCM.3. Turn the ignition switch ON (ll).4. Measu re voltage betweenbody ground and ECM/PCMconnector terminals A14 andA13* individually.
Ch6ck th6 IAC valve:1. Turn the ignition switch OFF.2. Disconnect the IAC valve 3Pconnector,3, Measure resistance betweenIAC valve 3P connector termi-nal No.2 and terminals No. 1and 3 individually.
ls there 16 - 28 g?
Substitute a known-good ECM/PCM and recheck. lf symptom/indication goos away, replaceth€ origin.l ECM/PCM.
SHAFT
rAcv N loRNl*
(To page 11-199)
Wire side of lemale terminals
123a56El011
121314r5161718t9202:22321
272AA30
IACV P {BLK/BLUI

ldle Gontrol System
The (Rotary) IAC Valve changes the amount of air bypassing the throttle body in response to a current signal from the
ECM/PCM in order to maintain the proper idle speed.BIMETALHOLDER
BIMETAL
SHAFTVALVESTOPPER
ECM/PCM CONNECTOR B {25P}
(To page 11-201)
IAC VALVE 3P CONNECTOR
IACV NIACV P
ldle Air Control {lACl Valve ('99 - 00 A/T and Dl6Y7 enginel
YES
1P1509 lThescantool indicates Diagnostic Trouble Code (DTC) P1509:A problem inthe idleAirControl (lAC)valve circuit.
IGP
Terminal side of maleterminals
Sub3titute e known-good ECM/PCM .nd recheck. lf 3vmptom/indicalion goos away, replac6thc original ECM/PCM.
*: IACV N line
11-200
Tho MIL has b€en reported on.OTC P1509 is sto.ed.
Problem verilicationr1. Do the ECM/PCM Reset Proce-dure.2. Turn the ignition switch ON (ll).
Intermittont tailure, sy3tem i3 OKat thb time. Check for poor con'noctions or loose wiros at C109(lAC velvel and ECM/PCM.
ls DTC P1509 indicated?
Check for an oDen in the wilosIPG linesl:Measure voltage between bodyground and ECM/PCM connectorterminals 82 and 810 individually.
Ropail open in the wires be'tw€enECM/PCM .nd G101 llocated .tthe the.mostat housingl.ls there more than 1.0 V?
Check tho ECM/PCM input volt-age:1. Turn the ignition switch OFF.2. Disconnect ECM/PCM connec-tor A (32P)trom the ECM/PCM.3. Turn the ignition switch ON (ll).
4, Measure voltage betweenbody ground and ECM/PCMconnector terminals 86 and815* individually.
Chock the IAC v.lve:1. Turn the ignition sw;tch OFF.2. Disconnect the IAC valve 3Pconnoctor.3. Measure resistance betweenIAC valve 3P connector termi'nal No. 2 and terminals No. 1and 3 individually.
ls there 16 - 28 O?
Wire side of female terminals

IThrottle BodY
Description
The throttle bodY is either a single-barrel side-draft type
(D16Y5, D16Y8, 816A2 engine) or a down-draft type
(D16Y/ engine). The lower portion ot the throttle valve is
heated by engine coolant from the cylinder head' The
idle adjusting screw which regulates the bypass air is
located on the top of the throttle body
THROTTLEPOS|T|ON lTPlSENSOR
IDLE AD.'USTINGSCREW
t
In3pection
1. Check that the throttle cable operates smoothly
without binding or sticking.
lf there are any abnormalities, check for:
. Excessive wear or play in the throttle valve shaft'
. StickY or binding throttle lever at the fully closed
Position.. Clearance between throttle stop screw and throt-
tle lever at the fully closed position'
D16Y5, Dl6Y8 engine:
THROTTLE STOP SCREW
{Do not adjust.)
Dl6Y7 ongine:
816A2 engins:
THROTTLE LINK
STOP SCREW
THROTTTE STOP SCREW(Do not adjust.)
Replace the throftle body if thsre is excessive play in the
throttle valve shaft or iJ the shaft is binding or sticking'
(cont'd)
11-247
{Do not adjust.)

J
Transaxle
cf utch .""""" 12'1
Manual Transmission ............"'.'..".'...'. 13-1
Automatic Transmission ........ "........ " ". 1 4-1
Differential ... 15-1
Driveshafts ." 16-1

Special Tools
ItJ
Ref. No. Tool NumberDescriptionOty Page Reterence
o
\31(
@
!o/
OTJAF _ PM7O11A
OTJAF _ PM70124
07LAB - PV00100 or
07924, PD20003
07746 - 0010100
07749 - 00']0000
07936 - 3710100
Clutch Alignment Disc
Clutch Alignment Shaft
Ring Gear Holder
Attachment, 32 x 35 mm
Driver
Hand le
12-7
12-7 ,8, 10, 11't2-7,9,10,11
12 10
12-'tO
12-1 ,8, 10, 11
(r\aU
2-2