Curtis PMC Troubleshooting
Page 25
STOP
Stop, do not continue. If you reached this point without a solution, then you may have an
unanticipated problem or have made an error during testing. It is important to review the
trouble shooting steps that have led to this point. The tests may need to be repeated.
Reading is plus or minus 10%
ISO solenoid is shown for reference
only. The type of solenoid in your truck
may look different
_
+
Connect the meter to each end of the resistor that
was removed from the ISO solenoid and measure
its resistance.
•
The meter reading should be 250 Ohms
(+/-10%). If it is not 250 ohms (+/-10%),
then replace the resistor. Stop trouble
shooting here and repair the problem.
When the repair is completed, completely
retest the vehicle before lowering the
drive wheels to the ground.
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