Honda Civic Service Manual page 768

Troubleshooting Flowchart - Shift Control Solenoid Valve A
NOTE: Record allJreeze data before you troubleshoot.
Possible Cru3.
' Disconnectod 3hift control
solonoid valva A/B a33emblY
connactot
. Short or opon in shift cont.ol
solonoid valvo A wits
. Faulty shift control .olenoid
. op.n in vB SOL wi.e
To page 14-90
PCM CONNECTOBS
LG1{BRN/BLK} LG2IBRN/BLKI
Wire side of female terminals
LGl IBRN/BI-K)
LG2IBBN/BLK)
. OBD ll Scan Tool indic.ts6 Code
Pot53.
. Solt-diagno.is E indicrtot light
blinks seven time6.
Chock tor a Short to Power:
1. Turn the ignition switch OFF.
2. Disconnect the g (25P) and D
( 1 6 P ) c o n n e c l o r s f r o m t h e
PCM,
3. Turn the ignirion switch ON (ll)
,1. Measure the voltage between
the D7 and 820 or 822 termi
nals,
Rcpair short to powet in the wile
b€t^reen tho D7 termin.l .nd the
shift control aolonoid valve A.
Mee3ur. Shift Control Solonoid
Valve A Roaisttnce:
1. Turn the ignition switch OFF.
2 . M e a s u r e t h e r e s i s t a n c e
between the D7 and 820 or
822 terminals.
ls the resistance 12 - 25 O?
Me.3uro vB SOL Voh.ge:
1. Turn the ignition switch ON (ll).
2. Measure the voltage between
the D5 and 820 or 822 termi-
nals.
Check tor blown No. 15 17.5 A)
fuse in tho underdaah fula/rol.Y
box. ll the tusr is OK, .epair oPen
in th. wiio betwe.n the D5 ter'
min.l and th. underdssh tuso/
relav box.
ls there baftery voltage?
Check for loose t6tminalfit in th€
PCM connoctors. It necessary,
substitute e known-good PCM
and rechock.
I t25Pt
ll D {16P)
B rzsPt
o trQil
(cont'd)
14 -8 9