Pioneer 1200 Maintenance Service Manual page 144

11
TROUBLESHOOTING AND ELECTRICAL SYSTEM: FE400 ENGINE
Test Procedure 3 – Ground Straps, Continued:
Figure 11-25 Test Starter/Generator Ground Strap
WAVETEK 5XL
V
V OFF
1000
500
200 200
20 200
2 2m
200
20
m m
200
2000
m
k
200k
200
Ω 20k
A
2k
Ω
! !
V COM 200nA
MAX
1000 ---
FUSED
750V
Disconnect the 6-gauge
black wire from the battery.
Place red (+) probe on
disconnected end of wire.
Figure 11-27 Battery Ground Cable Test
5. Check voltage regulator ground connection (at battery frame ground). Make sure it is clean and tight.
6. Check the battery ground cable.
6.1. A 6-gauge black wire connects the negative battery post to the frame. The frame connection should
be clean and tight. Visual inspection is very difficult. The best check for tightness is to pull on the
black wire. If the wire moves at the connection end, disassemble the frame connection and clean
the bolt, ring terminal, and nut and replace.
6.2. Set the multimeter to 200 Ω (ohms). Place the red (+) probe on the unconnected end of the 6-gauge
black wire, and the black (–) probe on the vehicle frame (Figure 11-27, Page 11-24). The reading
should be continuity. If the reading is incorrect, check that terminal connections are clean and tight.
If the connections are good but the reading is incorrect, repair or replace the wire.
Page 11-24 2003 Pioneer 1200/1200SE Gasoline Vehicle Maintenance and Service Manual
WIRE TO FRAME NEXT
TO BATTERY
A2 TERMINAL
Place black (–)
probe on
frame.
The engine ground
is attached to the
oil filler bracket,
and the frame I-beam.
Figure 11-26 Test Engine Ground Strap
Test Procedures