TROUBLESHOOTING AND ELECTRICAL SYSTEM
Test Procedures
Page 11-32 2001 Pioneer 1200 Gasoline Vehicle Maintenance and Service Manual
11
3. Disconnect the yellow wire from the DF terminal on the starter/generator. Cover the connector on the
yellow wire to make sure the yellow wire will not short to ground. Then, using a jumper wire, ground the
DF terminal to the A2 terminal (Figure 11-34, Page 11-30).
4. Using a multimeter set to 20 volts DC, place the red (+) probe on the positive (+) post of the battery,
and place the black (–) probe on the negative (–) post. Start the engine and run it at full governed
speed. The reading should show the voltage rising on the meter. If the voltage rises, see Test Proce-
dure 12 – Voltage Regulator on page 11-32. If the voltage does not rise, and the diode was found to be
functioning properly in Test Procedure 10, a tear-down inspection of the starter/generator will be neces-
sary. See Starter/Generator Removal, Section 12, Page 12-2.
5. Reconnect the yellow wire to the DF terminal on the starter/generator.
TEST PROCEDURE 12 – VOLTAGE REGULATOR
Read DANGER and WARNING on page 11-1.
NOTE: Perform Test Procedures 10 and 11 before proceeding with this test procedure.
Keep the battery connected while performing this test procedure.
1. Place the Forward/Reverse handle in the NEUTRAL position, and chock the wheels.
2. Check that the wires are connected correctly and are tight. If they are not, rewire or tighten as neces-
sary.
3. Check the engine RPM setting to ensure that it is adjusted correctly. See Engine RPM Adjustment,
4. With the battery in good condition and fully charged, run the engine for several minutes to bring the
voltage regulator to operating temperature.
5. Turn the key switch to the OFF position, killing the engine. Using a multimeter set to 20 volts DC, place
the red (+) probe on the large post of the solenoid with the red wire from the voltage regulator attached.
Place the black (–) probe on the negative (–) battery post (Figure 11-37, Page 11-33). With the For-
ward/Reverse handle in the NEUTRAL position and the wheels chocked, turn the key switch to the
START position to start the engine. Depress the accelerator to run the engine at full governed speed. If
the reading is between 14.7 and 15.3 volts, the regulator is good. If the reading is lower than 14.7 volts
but rising steadily, check battery condition. See Hydrometer Test on page 11-22. If the reading is
lower than 14.7 volts and not rising, and the starter/generator is good; or if the reading is over 15.3
volts and continues to rise, replace voltage regulator. See Voltage Regulator Removal, Section 12,
Page 12-13.
TEST PROCEDURE 13 – DISCONNECTED KILL WIRE
Read DANGER and WARNING on page 11-1.
NOTE: Keep the battery connected while performing this test procedure.
1. Place the Forward/Reverse handle in the NEUTRAL position, and chock the wheels.
2. Disconnect the engine-kill white/black wire at the bullet connector located next to the RPM limiter (Fig-
3. With the wheels chocked, connect the 6 gauge red wire to the positive post on the battery, then connect
the 6 gauge black wire to the negative post.
