Dtc P0335: Ckp Sensor No Signal; Dtc P0336: Ckp Sensor Intermittent Interruption - Honda EP3 Service Manual

PGM-FI System
a
a
DTC Troubleshooting (cont'd)
DTC P0335: CKP Sensor No Signal
DTC P0336: CKP Sensor Intermittent
Interruption
'1. Reset
the ECM (see page 1
'1-4).
2. Sta rt the engine.
ls DTC P0335 and/or P0336 indicated?
YES Go to step 3.
NO Intermittent failure, system is OK at this time.
Check for poor connections or loose terminals at
t h e C K P s e n s o r a n d a t t h e E C M . I
3. Turn the ignition switch OFF.
4. Disconnect the CKP sensor 3P connector.
5. Turn the ignition switch ON {ll).
6. Measure voltage between CKP sensor 3P connector
t e r m i n a l N o . 3 a n d b o d y g r o u n d .
CKP SENSOR 3P CONNECTOF
(YEL/BLK}
Wire sade of female terminals
Is there battery voltage?
YES- Go to step 7.
NO Repair open ln the wire between PGM-Fl main
r e l a y 1 a n d t h e C K P s e n s o r . !
IGP
1 2 3
11-78
7. Measure voltage between CKP sensor 3P connector
t e r m i n a l N o , 1 a n d b o d y g r o u n d
CKP SENSOR 3P CONNECTOR
W i r e s i d e o f f e m a l e t e f m i n a l s
ls there about 5 V?
YES Go to step L
N O G o t o s t e p 1 0 .
8. Measure voltage between CKP sensor 3P connector
t e r m i n a l s N o . 2 a n d N o . 3 .
CKP SENSOR 3PCONNECTOR
, l l Y t L
L " l
(
L G l
{ B R N / Y E L I
W i r e s i d e o f f e m a l e t e r m i n a l s
ls there battery voltage?
YES Go to step 9.
NO Repair open in the wire between the CKP
s e n s o r a n d G 1 0 1 . I
9. Substitute a known-good CKP sensor and recheck.
ls DTC P0335 and/or P0336 indicated?
YES Update the ECM if it does not have the latest
software. or substitute a known good ECM, then
recheck {see page 1 1-6). lf the symptom/indication
goes away with a known-good ECM, replace the
o r i g i n a l E C M . I
N O R e p l a c e t h e o r i g i n a l C K P s e n s o r . l