Honda Civic Service Manual page 314

1 3 .
7 4 .
7 5 .
72. Measure voltage between body ground and ECM
connector terminal E5.
ECM CONNECTOR E 131P}
ls there about 5 V?
YES Replace the FTP sensor.t
NO Go to step 73.
Turn the ignition switch OFF.
Disconnect ECM connector E (3'lP).
Check for continuity between ECM connector
t e r m i n a l E 5 a n d b o d y g r o u n d .
ECM CONNECTOR E {31PI
Is there continuity?
YES Repair short in the wire between the ECM
( E 5 ) a n d t h e F T P s e n s o r . l
NO Update the ECM if it does not have the latest
software, or substitute a known-good ECM, then
recheck (see page 11-6). 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
Wire side of female terminals
Wire side of female terminals
7 6 .
7 7 .
7 8 .
7 9 .
8 0 .
T u r n t h e i g n i t i o n s w i t c h O F F .
T u r n t h e i g n i t i o n s w i t c h O N ( l l ) .
Measure voltage between ECM connector terminal
E 2 9 a n d b o d y g r o u n d .
ECM CONNECTOR E (31P)
r l 2 l 3 1 4
5 6 1 8 9
,/1,/114
1 5
6 2A21
2 2
23
241 l,/
2930
scstBRN)
Wire side of female terminals
ls there about 5 V (or battery voltage)?
YES-Go to step 82.
NO Go to step 79.
Turn the ignition switch OFF.
Disconnect ECM connector E (31P).
(cont'd)
11-107