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TROUBLESHOOTING AND ELECTRICAL
SYSTEM: PEDAL-START GAS VEHICLE
Test Procedures
18
TEST PROCEDURE 5 – Key Switch (Start Circuit)
See General Warnings on page 1-1.
NOTE:
This is a voltage test.
The key switch provides power and KEY INPUT to the ECU.
1.
If necessary, see Testing Basics on page 18-15.
2.
Remove instrument panel to access the back of the key switch but do not disconnect wires.
3.
With the key switch in the OFF position:
– The green wire should show battery voltage coming to the switch.
– The brown/white wire should show zero (0) volts. If it shows battery voltage, the switch has failed CLOSED
and must be replaced.
4.
With the key switch in the ON position:
– The brown/white wire should show battery voltage passing through the key switch to sonic weld 3, the 5-amp
fuse, the solenoid, and the 4-pin connected car plug. If it does not show battery voltage, the switch has failed
OPEN and must be replaced.
2017 Carryall 500 and 700 Maintenance and Service Manual
Page 18-25
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