TRANSMISSION AND TORQUE CONVERTER CD5515-2/YB5515-2 SERVICE MANUAL
7-14 Published 1-20-2017, Control# 483-02
3. Turn the ignition switch to the ON position. Do not set the
parking brake as this dumps the transmission to a
neutral state.
4. Select the desired gear on the shifter control lever.
5. Identify the two solenoids which give the required gear
Figure 7-11.
6. Check the magnetic attraction on the ends of the
solenoid using a feeler gauge or small screwdriver.
7. If solenoid(s) are not being energized, check that they
are receiving power.
8. If the wrong solenoids are being energized for the gear
selection check the wire harness for proper connections.
9. If the solenoids are being energized correctly and the
problem persists, the problem may be in the
transmission itself or a stuck spool in the solenoid.
If the problem seems to be intermittent (e.g. transmission
dropping to neutral), select a gear and place a small washer
on the ends of the energized solenoids. The washers will be
held in place by the magnetic attraction. Drive the crane
around without changing gear or direction. If the problem
reappears examine the washers. If one or both of the
washers have dropped off, it is a good indication that there is
an electrical problem. In this case, examine the wire harness
and ECU further. If both washers are still in place the
problem lies elsewhere (possibly in the transmission itself).
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