0010
TM 1-1740-221-13&P&P
TRANSMISSION TROUBLESHOOTING - (CONTINUED)
DECISION
YES Proceed to Step 4.
NO Replace transmission shifter assembly (SW2) (WP 0046).
BRANCH 4.
4.
Lift vehicle all 4 wheels (WP 0029). Use extreme caution. Remove D2 solenoid valve electrical connectors
(WP 0049). Start engine and release hand brake. Place gear shift selector in D2 and increase wheel speed
to the known point of shifting from D1 to D2. Test input voltage to the 2 transmission solenoid valve D2
assemblies (WP 0049).
CONDITION/INDICATION
Is 12 volts input present at the D2 test locations to the solenoid valve assemblies?
DECISION
YES Proceed to Step 5.
NO Replace faulty transmission speed sensor (WP 0047), or ECU (WP 0048) or repair circuit wiring (FO-1).
BRANCH 5.
5.
Ohms test all of the transmission solenoid valve assembly coils (WP 0049).
CONDITION/INDICATION
Did the transmission solenoid valves ohms test satisfactory?
DECISION
YES Proceed to Step 6.
NO Replace defective solenoid valve coils (WP 0049).
BRANCH 6.
6.
Remove transmission solenoid valve assemblies (WP 0049) and inspect for visible damage or obvious
defects (metal particles, other contamination, sticking valves).
CONDITION/INDICATION
Do the solenoid valve assemblies check satisfactory?
DECISION
YES Replace defective transmission assembly (WP 0043).
NO Proceed to Step 7.
MALFUNCTION - BRANCH 7.
MALFUNCTION -
00107
