Lull 944E-42 Service Manual - Manual (Page 659)

9.149 Model 644E-42/944E-42 Rev. 6/04
Electrical System
9.10.1 Engine Alternator Charging Warning Indicator Troubleshooting
Engine alternator charging
warning indicator stays ON
while operating.
Check dash panel
connector pin 2,
wire [D13] (YEL), for
battery voltage.
Replace dash panel.
Check alternator belt tension.
If OK
Engine Alternator
Charging Warning
Indicator
Replace alternator.
0000000
RPM X 100
5
10
15
30
20
25
F
1/2
E 104
176
80
248
120 °C
°F
D
r/min
MU4270
Check terminal “B+”,
wires [AB1] (RED) and
[AB2] (RED) on alternator
for battery voltage.
Repair/replace harness.
If OK
Check terminal “D+”,
wire [AD1] (GRY) on
alternator for
battery voltage.
If OK
If OK
Check [AG1] (BLK) and
[AG2] (BLK), ground wires.
Repair as needed.
Not
OK
Not
OK
Not
OK
Not
OK
Before troubleshooting any
electrical circuit, ALWAYS begin
by checking the following:
1. Fuses.
2. Battery for proper charge.
3. All connections relating to
circuit are clean and tight.
4. All grounding straps are intact
and securely fastened, refer to
Section 9.1.12, “General
Overview (Vehicle Ground
Strap Locations).”
5. Check dash panel bulbs for
proper function.