GASOLINE VEHICLE - TROUBLESHOOTING
AND ELECTRICAL SYSTEM
Test Procedures
18
4.
5-amp ATM Fuse Only:
With the key switch in the ON position:
4.1.
Probe the two, small metal contacts on the top of the fuse
4.2.
Each contact should show battery voltage.
4.3.
If only one side shows battery voltage, replace fuse.
4.4.
If neither side of a fuse shows battery voltage, inspect the following locations:
– Check the 10-amp fuse.
– Check the key switch.
– Check sonic weld_3 in main wire harness.
5.
2-amp ABC Glass Fuse Only:
With the key switch in the ON position:
5.1.
Probe the wire on each side of the fuse with insulation-piercing probes.
5.2.
Each probe should show battery voltage.
5.3.
If only one side shows battery voltage, replace fuse.
5.4.
If neither side of a fuse shows battery voltage, inspect the following locations:
– Check the 10-amp fuse.
– Check the key switch.
– Check sonic weld_3 in main wire harness.
TEST PROCEDURE 3 – Ground Cables
See General Warnings on page 1-2.
NOTE:
This is a continuity test for the main ground wire(s) of the vehicle. An additional ground wire is located
on top of the fuel tank.
1.
If necessary, see Testing Basics on page 18-10.
2.
Disconnect battery and spark plug wire(s).
See Disconnecting the Battery- Gasoline Vehicles on page 1-3.
3.
Check the following wires and cables for clean, tight connections and continuity:
– Check the starter/generator ground cable (black wire) from A1 terminal to chassis or engine.
– Check the engine ground cable from engine block to negative (-) main harness lead disconnected from battery.
– Check the chassis ground cable from frame rail to negative (-) main harness lead disconnected from battery.
– Disconnect voltage regulator from main harness. Check from black wire in 3-pin connector to negative (-)
main harness lead disconnected from battery. This will test sonic weld _18 and sonic weld _1 in the main
wire harness.
4.
The reading should be continuity. If the reading is incorrect, clean and tighten cable connections. If the
connections are good and the reading is incorrect, repair or replace the wire or cable.
2019 Precedent Villager 2 Maintenance and Service Manual
Page 18-15
Summary of Contents for Precedent Villager 2
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Page 399: ...GASOLINE MAIN HARNESS Wiring Diagrams Gasoline Main Harness 25...
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Page 403: ...GASOLINE ENGINE HARNESS Wiring Diagrams Gasoline Engine Harness 25...
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