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Electrical Troubleshootin g
Troubleshooting Flowchart - Shift Gontrol Solenoid Valve A
\r,
Possiblc Cause
. Dbconnoctod shift control
solonoid vrlv€ A conneclot
. Short or oDen in 3hift control
solenoid valve A wire
. Faulw 3hift control solanoid
Morsure VREF Vohag6:
1 . D i s c o n n e c t t h e A ( 2 6 P ) a n d
B (22P) connectors trom the
TCM,
2. Turn the ignition switch ON (ll).
3. Measure the voltage between
the 820 and A13 or 426 termi-
nals.
TCM CONNECTORS
WIRE SIDE OF FEMALE TERMINALS
WIRE SIDE OF FEMALE TERMINALS
1 4 -6 6
TCM CONNECTOR A (26PI
. OBD ll Scan Tool Indicat . Code
m7$.
. S e l f - D i a g n o s i s E
i n d i c a t o r
ligln blinb sovon times.
Repair open or 3hort in the wiro
betwoon tho 820 terminal 3nd
the ECM.
ls there approx. 5 V?
Chock lol a Short to Power:
Measure the voltage between the
43 and Al3 or 426terminals.
Repail short to powgr in the wire
belwoon the A3 termin.l and th6
shift control solonoid valvo A.
Measure Shift Contlol Solenoid
Valvo A R63btenc.:
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 43 and A13 or
426 torminals.
Chock for loo3. TCM connectors.
ll nec€ssary, 3ubsthute a known-
good solenoid v.lve sssombly or
TCM and r6check.
ls the resistance 12 - 25 O?
To page 14-67
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Table of Contents
Troubleshooting
