Honda Civic Service Manual page 215

Fuel and Emissions Systems
Knock Sensor Circuit N4alfunction
Crankshaft Position (CKP) Sensor Intermittent ( s e e p a g e 1 1 - 7 8 )
( s e e o a q e 1 1 - 1 2 1
PO4i{
T U 4 5 I
P0452
Camshaft Position (CMP) Sensor A Intermiftent
i s e e p a g e 1 1 - 1 2 1 )
Yetrgb-le
Velye TiTing _controlll/T!) Phqse G
s e e o a o e 1 1 - 1 2 2
CqJalyst System Elficie-ncy Below Threshold s e e o a q e 1 1 - 1 6 7
F u e l T a n k P r e s s u r e ( F T P ) S e n s o r R a n g e / P e r f o r m a n c e ( s e e p a g e l l 1 7 1 )
Sensor Circuit Low V 1 1 - 1 7 2
Fuel Tank Pressure (FTP) Sensor Circuit High V
V e h i c l e S D e e d S e n s o r C i r c u i t M a l f u n c t i o n
Camshaft Position (CMP) Sensor A No
P 0 4 5 1 ( 9 1 )
s e e D a q e 1 1 - 1 3 0 )
( s e e p a g e 1 1 - 8 1 )
Refer to the l\4ultiplex
Control System
T r o u b l e s h o o t i n g { s e e
( s e e p a g e 1 1 - 8 3 )
( s e e p a S e 1 1 ' 8 3 )
B a r o m e t r i c P r e s s u r e ( B A R O ) S e n s o r C i r c u i t H i g h
{ s e e p a g e 1 1 - 8 3 )
P't 121
Pl122
P11f,.8
T h r o t t l e P o s i t i o n { T P i S e n s o r S i g n a l L o w e r T h a n
( s e e p a g e 1 1 - 6 3 )
-
tsee page I r-oJ,
G;tp"s" 1 154)
( * " p a S e 1 1 5 4 )
P1122 ll J
i j 1 1 2 8 ( 5 )
T h r o t t l e P o s i t i o n ( T P ) S e n s o r S i g n a l H i g h e r T h a n
M a n i { o l d A b s o l u t e P r e s s u r e ( l \ , 4 A P }
S e n s o r S i g n a l
Loqer Tha n Expected
Manifold Absolute Preisure (MAP) SeiiioiSgnul
H i q h e r T h a n E x
( s e e p a g e 1 1 - 8 4 )
E n g i n e C o n t r o l M o d u l e ( E C N 4 ) P o w e r S o u r c e C i r c u i l
S e r i a l C o m m u n i c a t i o n L i n k M a l f u n c t i o n
P 1 1 0 6 ( 1 3 )
P 1 1 0 ? ( 1 3
P 1 1 0 8 ( t s '
Barometric Pressure (BARO) Sensor Range/
P e r f o r m a n c e P r o b l e m
B a r o m e t r i c P r e s s u r e ( B A R O ) S e n s o r C i r c u i t L o w
P1121 11)
P 1 1 2 9 ( 5 )
P 1 1 5 7 ( 4 8 )
Pr 158 (48)
A i r F u e l R a t i o ( A V F ) S e n s o r ( S e n s o r 1 ) R a n g e /
R e r f o r m a n c e P r o b l e m
A i r F u e l R a t i o { A " F ) S e n s o r { S e n s o r 1 ) A F S T e r m i n a l ( s e e p a g e 1 1 - 8 5 )
A i r F u e l R a t i o 1 A V F ) S e n s o r i s e n s o r
' l )
A F S + T e r m i n a l ( s e e p a g e 1 1 - 8 6 )
Air Fuel Ratio {A,/F) Sensor {Sensor I ) Slow Response
A i r F u e l R a t i o ( A / F ) S e n s o r ( S e n s o r 1 ) R a n g e / ( s e e p a g e 1 1 - 8 8 )
Air Fuel Ratio (4,/F) Sensor (Sensor 1) Heater Circuit
M a l f u n c t i o n
( s e e p a g e 1 1 - 8 9 )
Air Fuel Ratio (A,/F) Sensor (Sensor 1) Heater System
Malfunction
( s e e p a g e 1 1 - 9 1 )
P 1 1 5 9 ( 4 8 )
P 1 1 6 3 ( 6 1
P 1 1 6 4 ( 6 1 )
P 1 1 6 6 ( 4 1 )
P 1 1 6 7 ( 4 1 ) '
DTC Troubleshooting Index (cont'd)
" : T h e s e D T C S a r e i n d i c a t e d b y a b l i n k i n g M I L w h e n t h e S C S s e r v l c e s i g n a l l i n e i s j u m p e d w i t h t h e H o n d a P G M
Tester.
* 1 r ' 0 2 m o d e l
\
l\."
1 1 - 8
\.
(
a