Taylor-Dunn C0-425-36, Operation, Troubleshooting And Replacement Parts Manualooting And Replacement Parts Manual

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Electrical Troubleshooting
Troubleshooting Page 17
Test 6. ACCELERATOR MODULE FAULT
Disconnect the truck harness from the accelerator module. Connect the plug on the short end of
the 75-089-00 test harness to the accelerator module. Connect the receptacle on the short end of
the test harness to the vehicles control harness. The long end of the harness will be used for
testing. Refer to the illustration below.
This testing cannot be completed without the 75-089-00 test harness.
Unless specified otherwise, all references to a pin # is referring the connector on the long end of
the test harness. Refer to the illustration for the pin locations in the connector. The pin numbers
are cast into the connector as shown in the illustration.
TEST 6.1:
Accelerator pedal released.
Test the voltage from pin #9 to battery positive.
If the voltage equals battery volts ,then skip ahead
to test #6.2.
If the voltage does not equal battery volts, then
check the wire from pin #9 to the battery voltage
negative circuit breaker.
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.
All tests in this section (6) with the Key switch in the ON position.
INTO THE HARNESS
PLUG THIS END
INTO THE MODULE
PLUG THIS END
FOR TESTING
USE THIS END
9
6
7
4
3 1
The Accelerator Module
Test harness
Accelerator pedal depressed
meas to depress the accelerator pedal fully (full speed).
Accelerator pedal released
means to completely release the accelerator pedal (off).