GASOLINE VEHICLE - TROUBLESHOOTING
AND ELECTRICAL SYSTEM
TEST PROCEDURE 10 – Starter/Generator (Generator Function)
NOTE: This is a voltage test.
1.
If necessary, see Testing Basics.
2.
Disable the vehicle.
3.
Set the Maintenance/Operate switch to MAINTENANCE.
4.
Make sure that the wires are connected correctly and are tight. If they are not, rewire or tighten as necessary.
5.
Disconnect the yellow wire (1) from the DF terminal (2) on starter/generator (Figure 18-8).
F1
3029B
Figure 18-8 Jumper Wire Ground – DF to A1
6.
Cover terminal on yellow wire to make sure it will not short to ground.
7.
Use a jumper wire (3) to ground DF terminal to A1 terminal (4).
8.
Set the multimeter 20 VDC.
9.
Put the red (+) probe on the positive (+) post of the battery.
10.
Put the black (–) probe on the negative (–) post.
11.
Start the engine and run it at full governed speed. The reading should show the voltage rising on the meter.
11.1.
If the voltage rises above 15.3 volts DC, test the voltage regulator.
11.2.
If the voltage does not rise, do a tear-down inspection of the starter/generator.
12.
Remove the jumper wire.
13.
Reconnect the yellow wire to the DF terminal on starter/generator.
1
DF
2
F2
2020 Precedent,Villager 2 and 4 Maintenance and Service Manual
18
Test Procedures
Page 18-17