Pioneer 1200 Maintenance Service Manual page 148

11
TROUBLESHOOTING AND ELECTRICAL SYSTEM: FE400 ENGINE
NEGATIVE
PROBE
NC
NO COM
TESTER LIGHT
IS OUT. METER
READS 1.
TEST PROCEDURE 8 – STARTER/GENERATOR (STARTER FUNCTION)
See General Warning, Section 1, Page 1-1.
1. Turn the key switch OFF and remove the key. Place the Forward/Reverse handle in NEUTRAL. Chock
the wheels.
2. Disconnect the battery cables as instructed (Figure 11-1, Page 11-5). See WARNING "To avoid unin-
tentionally starting...in General Warning, Section 1, Page 1-2.
3. Check that wires are connected correctly and are tight. If they are not, rewire or tighten as necessary.
4. Disconnect the wires from all the terminals on the starter/generator. Then place the black (–) probe of a
multimeter, set to Ω (ohms), on the starter/generator housing (scratch through the finish to ensure a good
ground). While holding the black probe against the housing, place the red (+) probe (one at a time) on
the A1, A2, F1, F2 and DF terminals respectively (Figure 11-34, Page 11-29). The readings should be
no continuity. If the readings are incorrect, the starter/generator will need to be removed from the vehicle
and disassembled by a qualified technician. See Starter/Generator Removal, Section 12, Page 12-1.
- An incorrect reading from the A1 or A2 terminal indicates three possible problems: 1) a grounded A1
or A2 terminal, 2) a grounded wire in the brush area, or 3) a grounded armature/commutator.
- If the F1 or F2 reading is incorrect, it indicates a possible grounded F1 or F2 terminal or a grounded
field coil.
- If the DF reading is incorrect, it indicates a possible grounded DF terminal or a grounded field coil.
5. Disconnect the ground wire from the A2 terminal and the green wire from the A1 terminal on the starter/
generator.
6. Use a multimeter set to 200 Ω (ohms) and place the red (+) probe on the A1 terminal and the black (–)
probe on the A2 terminal. The reading should be continuity. If the reading is incorrect, a possible open
or poor contact in a brush assembly and/or open armature windings may be the cause. The starter/gen-
erator will need to be removed from the vehicle and disassembled by a qualified technician. See Starter/
Generator Removal, Section 12, Page 12-1.
7. With the wires still disconnected, and a multimeter set on 200 Ω (ohms), place the red (+) probe on the
F1 terminal and the black (–) probe on the F2 terminal. The reading should be between approximately
0.1 and 0.3 Ω (ohms). If the reading is incorrect, a possible open field coil or bad connections at terminals
may be the cause. The starter/generator will need to be removed from the vehicle and disassembled by
a qualified technician. See Starter/Generator Removal, Section 12, Page 12-1.
Page 11-28 2003 Pioneer 1200/1200SE Gasoline Vehicle Maintenance and Service Manual
LEVER UP
POSITIVE
PROBE
WAVETEK
V
200
20
2
200
m
2000
k
200k
Ω
Ω
!
V
MAX
1000 ---
750V
Figure 11-33 Test Lockout Cam Limit Switch
LEVER DEPRESSED
NEGATIVE
PROBE
5XL
V
OFF
1000 500
200
200
2m
20
m
200
m
20k 200
2k A
TESTER LIGHT IS
ON. METER READS
APPROXIMATELY
ZERO OHMS.
! 200nA
COM
FUSED
POSITIVE
PROBE
NC
NO COM
WAVETEK
V
Ω
V
Test Procedures
5XL
V
OFF
1000 500
200
200
20
200
2m
2
200
20
m m
200
2000
m
k
200k
20k 200
2k A
Ω
!
! COM 200nA
MAX
1000 ---
FUSED
750V