Honda Civic Service Manual page 453

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Crankshaft Speed Fluctuation (GKFI Sensor .
firC- 48 Models,
'99 - 00 D16Y5 engine with M/Tl
The scan tool indicates Diagnostic Trouble Code
(DTC) P1336; Intermiftent interruption in the Crankshaft Speed
Fluctuation (CKF) sensor circuit.
T h e s c a n t o o I i n d i c a t e s D i a g n o s t i c T r o u b | e c o d e { D T C ) P 1 3 3 7 : N o s i g n a I i n t h e c r a n k s h a f t s p e e d F | u c t u a t i o
sensor circuit.
D6scription
T h e d i a g n o s t i c s y s t e m h a s a p u | s e r r o t o r o n t h e c r a n k s h a f t a n d a p u | s e p i c k - u p s e n s o r o n t h e e n g i n e b l o c k . T h e E c M / P
monitors the crankshaft speed ftuctuation based on the cKF
sensor signal, and judges that 8n engine misfire occurred if
the fluctuation goes beyond a predetermined limit'
I
fPrk6l
lFr3g7-l
CKF SENSOR 3P CONNECTOR
L:l
. ) l l . ' -
Ir-T--T---.]
l 1 l 2 l 3 l l
L -
''---r
C K F M I
I C K F P
twrfit 1,.^\ | lsLul
\.7
Terminal side of male terminals
CKF M
IWHT}
CKF P
IBLUI
I
(cont'd)
- The MtL hds been reported on.
-
DTC P1336 and/or P1337 a.e
stored.
P.oblem v€rific.tion:
1. Do the ECM/PCM Reset Proce-
dure.
2. Stan the engine
lntormittont lailur6, tY3tom b OK
at thit tima. Chock tor Poor con'
nactions or loota wito! at C102
IC-KF son$rl .nd ECt /PCM, and
mrka suro CKF tonaor mounting
boh ittigM.
Chock for .n open in tho CKF aen-
30t:
1. Turn the ignition switch OFF
2. Disconnect the CKF sensor 3P
connector,
3 . M e a s u r e t h e
r e s i s t a n c e
between the CKF sensor 3P
connector terminals No. 1 and
N o . 3 .
ls there 1.6- 3.2 kO?
Ch€ck tor a short in the CKF son'
30ti
C h e c k { o r c o n t i n u i t Y b e t w e e n
body ground and the CKF sensor
3P connector termin6ls No. 1 and
N o . 3 i n d i v i d u a l l Y .
( T o p a g e 1 1 1 8 4 )
1 1 - 1 8 3