Taylor-Dunn B0-T48-48 Taylor Truck T48 Operation Manual page 108

Electrical Troubleshooting
TEST 1.5:
Test the voltage at pin #4 on the 12-pin logic card
connector.
If the voltage is high, then skip ahead to test #1.6.
If the voltage is low, then skip ahead to Test #6.
TEST 1.6:
Test the voltage at pin #7 on the 12-pin logic card
connector.
NOTE: Pin #7 is for a parking brake interlock
switch. This switch is not available for
all vehicles and may not be used.
If the voltage is high, then skip ahead to test #1.7.
If the voltage is low, then:
•
Check the park brake switch for shorted contacts.
•
Check the wire to the park brake switch for short
circuits to B-.
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.
This troubleshooting guide is written in sequential order. All tests
must be performed in the order that they are written. Starting in the
middle or skipping sections when not instructed to do so may lead to
invalid test results.
After any repairs are made, completely retest the vehicle before
lowering the drive wheels to the ground. Failure to retest the vehicle
could result in unexpected movement of the vehicle resulting in injury
or property damage.
Section 4 Page 6