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Electrical Troubleshooting
Troubleshooting Flowchart - Lock-up Control Solenoid Valve A
Po+tible Cauta
' Diaconnac'tad lock-up control
lolanoid valva A connac'toa
. Shon or opan in lod(-up co|ltrol
3olonoid valva A wire
. Faulty lock-up cont?ol lolanoid
TCM CONNECTORS
WIRE SIOE OF FEMAI."E TERMINALS
WIRE SIDE OF FEMA.E TEBMINAIS
L/
. OBD ll Scrn Tool indic|t.3 Cod.
P17!i:t.
. Self-Dirgnoii! E
indic.tor
light blinkr onco.
M.Nur. VREF Voh.go:
't. Disconnect the A (26P) and B
( 2 2 P ) c o n n € c t o r s l r o m t h €
TCM.
2. Turn tho ignition switch ON (ll).
3. Nleasure tho voltage betwson
the 820 and A13 or A26 tormi-
nals.
Raplir opan or 3hort in tha wi.a
b.twa.n
th. B20 t.lmin!l
.nd
th€ EcM.
lsthere approx. 5 V?
Check tor a Short to Powa.i
Measure tho voltag€ botwoen the
A16 and A13 or A26 terminals.
Rap!fu ahorl to Pow.t in tha wlra
b!tw..n
th. A16 t rmln.l rnd tho
lock-up c!filtol lolaooid valvo A.
Moaaurc Lock-uP Contlol Sole-
noid Vrlvo A Be3bianco:
1. Ttrrn the ignition switch OFF.
2 . M e a s u r e t h e
r s s i s t a n c e
between the A16 and A13 or
A26 terminals.
Chack tor loolc TCM conncctora.
lf naca!3!ry, rub3tftuta a known'
good rolcnold v.lva a$amblY ol
TCM .nd r.ch.ck.
ls the rosistanco 12 - 25 O?
To page 14-57
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14 -5 6
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Table of Contents
Troubleshooting
