Honda Civic Service Manual page 739

Electrical Troubleshooting ('96 - 9g Models)
Troubleshooting Flowchart - A/T Gear position Switch (Shortl
NOTE: Record allfreeze data before you troubleshoot.
Poiriblo Caus6
. Short in A/T go.. position
awhch wira
. Fauhy A/T goa. position swhch
NOTE: Code P1705 (5)
the PCM receives two
inputs at the same time.
is caused when
g e a r p o s i t i o n
' OBD ll Scln Toot indic.tes Cod6
P1705.
. Sofidi.gno3b E indicato] tighr
blinksfivatim...
Observo th. A/T Go.r po3ition
Indicator:
1. Turn the ignition switch ON l).
2. Observe the A"/T gear position
i n d i c a t o r , a n d s h i t t t o e a c h
posttron,
Do any indicatoG stay on
when the shift lever is not in
those positions?
Tho sy3tem b OK.t this timo.
Check th6 wilc harnari for dam-
rga.
M.r.ur. ATP R Vohlge:
1. Shift to all positions otherthan
E.
2. Nileasure the voltage between
the 816 and Ag or A22 tormi-
nats,
Check for short in tha wiro
bstwacn the 816 tcrminal and th6
A/T go.r porition rwitch or A/T
g..r position indicltor. It wira i3
OK, ch.ck for loo!€ FCfit connoc-
to13. lf nacetaary, subrtitute a
known€ood Pcllt and roa|rsck.
ls there battery voltage?
Meesur. ATP NP Vohage:
1. Shift to allpositions oth€r than
E o r E .
2. Moasure the voltage between
the 825 and A9 or A22 termi
nats.
Check for short in the wire
b.tw..n th6 B:I5 torminrt and th.
A/T gclr poahion indicator. o. .
short in tha wirrs between th.
A/T gclr position indicator rnd
the A/T gerr poiition switch. lf
wir.3 r.o OK, chack tor looso
PCM conn.ctorr. It n.cosarry.
sub.tituto a known-good pCM
.nd r.chock.
M.Gur. ATP D4 Voltago:
1. Shift to allpositions otherthan
lD.l.
2. Measure the voltage betw€en
rhe 824 and Ag or A22 termi-
nals.
Check tor 3hort in tho wiro
bc{wocn the 824 terminrl and tho
A/T ge.r poiition switch. lI wile
ia OK, chock tor loo3o plCM con-
ncctoaa. It nacossarv, sublthute a
known-good PCM and rech€ck.
ls there approx. 5 V?
PCM CONNECTORS
Wire side of female terminals
YES
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