Honda Civic Service Manual page 774

Troubleshooting Flowchart - Mainshaft Speed Sensor
NOTE: Record all freeze data before you troubleshoot.
Possible Causg
. Diaconn€cted mainshaft spoed
sen3or connector
' S h o r t o r o p e n i n m a i n s h a f t
sDeed sen3or wile
. Faulty main3halt speed sensor
NOTE: Code P0715 (15) on the PCM doesn't
always mean there's an electrrcal problem in
the mainshaft or countershaft speed sensor
circuit; code P0715 {15) may also indicate a
mechanical problem in the transmissjon Any
p r o b l e m c a u s i n g i r r e g u l a r c o u n t e r s h a f t t o
mainshalt speed difference can cause thls
code.
l l l , .
.TT
( o l
- i - l
t l
side oI male terminals
MAINSI{AFT SPEED
SENSOR CONNECTOR
Terminal
PCM CONNECTOR D (16P)
NMSG (WHT)
Wire side of female terminals
(cont'd)
1 4- 95
. OBD ll Scan Tool indicates Code
m715.
. Sell-diagno3is E indicator indi-
cates Code 15.
Check the mainshaft and counter-
shatt speed sensors installation,
and check them for damage.
Are the mainshaft and countershaft
speed sensor installed properly,
and not damaged?
Rsinalall or replace and rocheck.
M e a 3 u . e M e i n s h a l t S P e o d
Sensor Residance al the Sen3or
Connector:
1. Disconnect the 2P connector
f r o m t h e m a i n s h a f t s P e e d
sensor.
2, Nreasure mainshaft speed sen_
sor resistance at the sensor
connector.
ls the resistance 400 - 600 O?
Check Mainshaft Sp.ed Sen3o.
for a Short Circult:
1. Disconnect the D (16P) con-
nector trom the PCM.
2. Check lor continuity between
body ground and the D11 ter'
m i n a l a n d D 1 2 t e r m i n a l i n d i
vidually.
Bopair 3hort in the wiros b€twe€n
the 011 and D12 termin.ls rnd
th€ main3hett sp€€d aensoa.
ls there continuity?
T o p a g e 1 4 9 6